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Java Source Code / Java Documentation » Portal » Open Portal » com.sun.portal.providers.context 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


com.sun.portal.providers.context.ProviderContext

All known Subclasses:   com.sun.portal.desktop.context.PSProviderContext,
ProviderContext
public interface ProviderContext (Code)
An environment for provider execution. More formally, this class provides information pertaining to the container that a provider object executes within. Such information may be specific to the user, to the web container, or be global (shared between multiple users). This interface does not define what information falls into each of these categories; this is left up to the implementation. For example, it is up to the implementation whether a user's locale (see getLocaleString() and getLocale()) is specific to the user or is a global for all users.

At runtime, a single provider context object is shared between all channels in the system. Methods in this interface that target a specific channel require the channel name to be passed in as a parameter to the method (see get*Property()).

Any container channel that wishes to make a provider context available to its contained leaf channels must do so using an agreed-upon contract between the container and the leaf channels. Any channels that extends ProviderAdapter falls into this category. See the ProviderAdapter Javadocs for details.

A provider context forms the layer between the services used by the provider and the provider code. A provider context isolates provider code from specific service interfaces and implementations.

All methods in this interface may throw errors. Errors are thrown when a serious problem arises such that a reasonable application either should not try, or there is no clear way to resolve. The actual object thrown will be a subclass of Error. This error may be caught, if it can be handled reasonably in the application. Applications that wish to try and resolve such errors may catch Error. The get*Property() and set*Property() methods deserve special mention. It is considered a serious error when an application attempts to get or set a property that does not exist. Again, an error is thrown from these methods if the property does not exist. The set of properties that an application uses is a contract between the persistent store providing the properties and the application. To avoid application errors, the exists*Property() methods can be used to check for the existence of a property. Additionally, the get*Property() method versions that accept a default value may be used.

There is a 1-1 mapping between a session and a ProviderContext object. Typically, there is a unique session for every client accessing the Desktop. However, there are exceptions to this. When accessed in authless mode, multiple clients access the same ProviderContext object and therefore the same session. A subset of methods in this interface access session functionality. These include getSessionProperty(), setSessionProperty(), getSessionID(), and getUserID(). The getSessionProperty() and setSessionProperty() methods get and set properties per session, or per ProviderContext object. A session property is shared between all clients using the session. In the case of authless, a session property is shared for all authless clients. In some cases it is desirable to set properties such that there is a 1-1 mapping between client and property. An example of this is a selected tab name. In the case of authless, it would not do to have the selected tab name shared between all authless clients because this would cause all authless clients to have the same selected tab. To set / get properties per accessing client, use the setClientProperty() and getClientProperty() methods.

ProviderContext is a generic interface, the documentation here describes it in this light. There are implementation classes as well. To make use of this interface, it is necessary to expose aspects of the implementation. While the implementation classes are private, their semantics are documented. Please see the iPS product documentation for details.
See Also:   com.sun.portal.providers.ProviderAdapter
See Also:   com.sun.portal.providers.context.ContainerProviderContext




Method Summary
public  voidallContentChanged()
     Flags content for all channels as changed.
public  voidcontentChanged(String channelName)
     Flags channel content as changed.
public  voiddebugError(Object o)
     Logs a message if the debugging level is "error".
public  voiddebugError(Object o, Throwable t)
     Logs a message and stack trace, if the debugging level is "error".
public  voiddebugMessage(Object o)
     logs a message if the debugging level is "message" or higher.
public  voiddebugMessage(Object o, Throwable t)
     Logs a message and stack trace if the debugging level is "message" or higher.
public  voiddebugWarning(Object o)
     Logs a message if the debugging level is "warning" or higher.
public  voiddebugWarning(Object o, Throwable t)
     Logs a message and stack trace if the debugging level is "warning" or higher.
public  StringdecodeURLParameter(String dec)
    
public  StringencodeURL(String url)
     Encodes a URL.
public  StringencodeURLParameter(String enc)
     URL encodes a unicode string This method is used for encoding multi-byte characters to be passed as arguments in a URL.
public  Stringescape(String unescaped)
     Escapes a String This method escapes the string using an encoder class that encodes a specific type of markup.
public  booleanexistsBooleanProperty(String channel, String name)
     Test for the existence of a boolean property.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name.
public  booleanexistsBooleanProperty(String channel, String name, List pflist)
     Test for the existence of the filtered boolean property. Filter criteria can be specified using a series of PropertiesFilter objects.
public  booleanexistsCollectionProperty(String channel, String name)
     Test for the existence of a collection property.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name.
public  booleanexistsCollectionProperty(String channel, String name, List pflist)
     Test for the existence of the filtered collection property. Filter criteria can be specified using a series of PropertiesFilter objects.
public  booleanexistsCollectionProperty(String channel, String name, boolean localized)
     Test for the existence of a collection property.
public  booleanexistsIntegerProperty(String channel, String name)
     Test for the existence of an integer property.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name.
public  booleanexistsIntegerProperty(String channel, String name, List pflist)
     Test for the existence of the filtered integer property. Filter criteria can be specified using a series of PropertiesFilter objects.
public  booleanexistsStringProperty(String channel, String name)
     Test for the existence of a string property.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name.
public  booleanexistsStringProperty(String channel, String name, List pflist)
     Test for the existence of a filtered string property. Filter criteria can be specified using a series of PropertiesFilter objects.
public  booleanexistsStringProperty(String channel, String name, boolean localized)
     Test for the existence of a string property.
public  StringgetAuthenticationType()
     Get the authentication type. The method returns a string denoting the authentication type that was used for the current session.
public  booleangetBooleanProperty(String channel, String name)
     Get a boolean property property.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
public  booleangetBooleanProperty(String channel, String name, List pflist)
     Get the filtered boolean property property. Filter criteria can be specified using a series of PropertiesFilter objects.
public  booleangetBooleanProperty(String channel, String name, boolean def)
     Get a boolean property property. This method returns a default value if the property does not exist.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value.
public  booleangetBooleanProperty(String channel, String name, boolean def, List pflist)
     Get the filtered boolean property property. This method returns a default value if the property does not exist. Filter criteria can be specified using a series of PropertiesFilter objects.
public  StringgetCharset()
     Get the character set.
public  StringgetClassName(String channel)
     Get the class name for the provider class that this object will be providing an environment for.
public  ListgetClientAndLocalePropertiesFilters()
     Get the client and locale in the form of PropertiesFilter's. Each client and locale suffix is used to create PropertiesFilter. Note that by default, the PropertiesFilter objects return in the list are constructed with their "required" flag set to false.
public  StringgetClientPath()
     Get the client path. The client path is one of several components used to lookup Desktop templates and JSPs.
public  ListgetClientPropertiesFilters()
     Get the client PropertiesFilter's. The hierarchy of client PropertiesFilter is returned. Note that by default, the PropertiesFilter objects return in the list are constructed with their "required" flag set to false.
public  ListgetClientPropertiesFilters(String clientType)
     Get the client PropertiesFilter's for a given clientType. The hierarchy of client PropertiesFilter is returned. Note that by default, the PropertiesFilter objects return in the list are constructed with their "required" flag set to false.
public  StringgetClientProperty(String name)
     Get a client property. Client properties are specific to the particular client accessing the portal, not to the ProviderContext object used to access them.
Client properties are only guaranteed to persist for the life of the request, although typically they will persist for the life of the session.
Parameters:
  name - a String, the property name.
public  StringgetClientType()
     Get the client type.
public  SetgetClientTypeProperties(String clientType, String key)
     Get a set of client type properties for the given client type.
Parameters:
  clientType - Client type to get the property keys from.
Parameters:
  key - Property key.
public  StringgetClientTypeProperty(String key)
     Get a client type property for the user's client type.
Parameters:
  key - Property key.
public  StringgetClientTypeProperty(String clientType, String key)
     Get a client type property for the given client type.
Parameters:
  clientType - Client type to get the property from.
Parameters:
  key - Property key.
public  MapgetCollectionProperty(String channel, String name)
     Get a collection property. Here, a collection is used to refer to a multi-value property. Depending on the context, it is either the analogue of Java Maps or List.
public  MapgetCollectionProperty(String channel, String name, Map def)
     Get a collection property. This method returns a default value if the property does not exist.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value.
public  MapgetCollectionProperty(String channel, String name, List pflist)
     Get the filtered Collection property. Filter criteria can be specified using a series of PropertiesFilter objects.
public  MapgetCollectionProperty(String channel, String name, Map def, List pflist)
     Get the filtered Collection property. This method returns a default value if the property does not exist. Filter criteria can be specified using a series of PropertiesFilter objects.
public  MapgetCollectionProperty(String channel, String name, boolean localized)
     Get the localized version of a collection property. Locales are searched from more to less specific.
public  MapgetCollectionProperty(String channel, String name, Map def, boolean localized)
     Get the localized version of a collection property.
public  StringgetConfigProperty(String key)
     Get the named configuration property.
Parameters:
  key - a String, the property name.
public  StringgetContentType()
     Get the content type.
public  StringgetDefaultChannelName()
     Get the default channel name. This method returns the channel name from the session using getSessionProperty if exists.
public  StringgetDefaultClientType()
     Get the default client type.
public  StringgetDesktopType()
     Get the Desktop type. The Desktop type, or also known as template type, is a string that is one of several indexes used to lookup Desktop templates and JSP files.
public  StringgetDesktopURL(HttpServletRequest req)
     Get the Desktop URL.
public  StringgetDesktopURL(HttpServletRequest req, Map query, Map pathInfo)
     Get the Desktop URL.
public  StringgetDesktopURL(HttpServletRequest req, Map query, Map pathInfo, boolean escape)
     Get the Desktop URL.
public  StringgetDesktopURL(HttpServletRequest req, String query, boolean escape)
     Get the Desktop URL.
public  intgetIntegerProperty(String channel, String name)
     Get an integer property.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
public  intgetIntegerProperty(String channel, String name, List pflist)
     Get the filtered integer property. Filter criteria can be specified using a series of PropertiesFilter objects.
public  intgetIntegerProperty(String channel, String name, int def)
     Get an integer property. This method returns a default value if the property does not exist.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value.
public  intgetIntegerProperty(String channel, String name, int def, List pflist)
     Get an integer property. This method returns a default value if the property does not exist. Filter criteria can be specified using a series of PropertiesFilter objects.
public  LocalegetLocale()
     Get the locale.
public  ListgetLocalePropertiesFilters()
     Get the locale in the form of PropertiesFilter's. Each locale suffix is used to create PropertiesFilter. Note that by default, the PropertiesFilter objects return in the list are constructed with their "required" flag set to false.
public  StringgetLocaleString()
     Get the string form of the locale.
public  StringgetLoginURL()
     Get the login URL.
public  StringgetLogoutURL()
     Get the logout URL. The result of making a connection to the logout URL is typcically the termination of the user's session.
public  IteratorgetNames(String channel)
     Get property names for the channel.
Parameters:
  channel - Channel name.
public  StringgetParentContainerName(String channel)
     Get the display container name for the named channel. A display container visually holds another channel. This method returns the parent container name in which this channel is contained on the desktop page. returns null if this channel is the parent container or if this method is called outside getContent() in Provider class. A channel only has a display container when it is being visually displayed within a container channel.
public  ObjectgetProperty(String channel, String name)
     Get a property.
public  ObjectgetProperty(String channel, String name, Object def)
     Get a property.
public  StringgetProviderName(String channel)
     Get the name of the provider that backs the channel that this object provides an environment for. The format of the provider name is implementation dependent. The provider name is not necessarily equal to the provider class name (see getProviderClassName()).
Parameters:
  channel - Channel name.
public  intgetProviderVersion(String channel)
     Get the version of the provider schema for the named channel.
public  StringBuffergetRequestServer(HttpServletRequest req)
     Get the request server. This is a replacement for HttpUtils.getRequestURL() because the version of that method does not use the Host HTTP header field to reconstruct the URL. The difference in this version is that it grabs the servername:port from the Host header if it is there.
Parameters:
  req - HTTP request object to grab the server information from.
public  SetgetRoles()
     Get the roles the user is in.
public  ServletConfiggetServletConfig()
     Get the Servlet Config.
public  ServletContextgetServletContext()
     Get the Servlet Context.
public  StringgetSessionID()
     Get the unique session identifier. The format of the return value is implementation specific.
public  ObjectgetSessionProperty(String name)
     Get a session property. There is a 1-1 mapping between a session and a ProviderContext object.
public  StringgetStaticContentPath()
     Get the URI prefix to web server static content. Static content may be located separately from dynamic content such as servlets and JSP. This URI prefix is used to access static web content such as images and HTML files.
public  StringgetStringAttribute(String name)
     Get a string attribute. "Attributes" are settings that are not channel-specific.
public  StringgetStringAttribute(String name, Locale locale)
     Get a localised string attribute if available. "Attributes" are settings that are not channel-specific.
public  StringgetStringProperty(String channel, String name)
     Get a String property.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
public  StringgetStringProperty(String channel, String name, List pflist)
     Get the filtered String property. Filter criteria can be specified using a series of PropertiesFilter objects.
public  StringgetStringProperty(String channel, String name, List pflist, boolean exact)
     Get the filtered String property. Filter criteria can be specified using a series of PropertiesFilter objects.
public  StringgetStringProperty(String channel, String name, String def)
     Get a String property.
public  StringgetStringProperty(String channel, String name, String def, List pflist)
     Get the filtered String property. This method returns a default value if the property does not exist. Filter criteria can be specified using a series of PropertiesFilter objects.
public  StringgetStringProperty(String channel, String name, boolean localized)
     Get the localized version of a String property. Locales are searched from more to less specific.
public  StringgetStringProperty(String channel, String name, String def, boolean localized)
     Get the localized version of a String property. This method returns a default value if the property does not exist. Locales are searched from more to less specific.
public  StringBuffergetTemplate(String name, String file)
     Get a desktop template. The actual template buffer returned is based on the Desktop type, locale, channel, client type, and the template name.
Parameters:
  name - Channel name
Parameters:
  file - Template name to return.
public  StringBuffergetTemplate(String desktopType, String locale, String name, String clientType, String file, String baseDir)
     Get a desktop template. The actual template buffer returned is based on the Desktop type, locale, channel, client type, and the template name.
Parameters:
  desktopType - Desktop type.
Parameters:
  locale - Locale.
Parameters:
  name - Channel name.
Parameters:
  cilentType - client type.
Parameters:
  file - Template name to return.
Parameters:
  baseDir - the base directory from which the lookup mechanismbegins its lookup.
public  StringBuffergetTemplate(String name, String file, Hashtable table)
     Get and tag swaps a desktop template. The actual template buffer returned is based on the the name, locale, client path, and Desktop type.
Parameters:
  name - Channel name
Parameters:
  file - Template name to return
Parameters:
  table - Tag table to use for tag swapping.
public  StringBuffergetTemplate(String desktopType, String locale, String name, String clientType, String file, Hashtable table, String baseDir)
     Get and tag swaps a desktop template. The actual template buffer returned is based on the the name, locale, client path, and Desktop type.
Parameters:
  desktopType - Desktop type.
Parameters:
  locale - Locale.
Parameters:
  name - Channel name.
Parameters:
  cilentType - client type.
Parameters:
  file - Template name to return.
Parameters:
  table - Tag table to use for tag swapping.
Parameters:
  baseDir - the base directory from which the lookup mechanismbegins its lookup.
public  FilegetTemplateMostSpecificPath(String name, String file)
     Get the most specific template path for the given channel name and the given template name.
public  FilegetTemplateMostSpecificPath(String desktopType, String locale, String name, String clientType, String file, String baseDir)
     Get the most specific template path for the given channel name and the given template name.
public  FilegetTemplatePath(String name, String file)
     Get the template path for the given channel name and the given template name. If non-null, the key returned by this method will map to a valid template file.
public  FilegetTemplatePath(String desktopType, String locale, String name, String clientType, String file, String baseDir)
     Get the template path for the given channel name and the given template name. If non-null, the key returned by this method will map to a valid template file.
public  StringgetTopChannelName(HttpServletRequest req)
     Get the top channel name.
public  StringgetUserID()
     Get the user identifier. The format of the return value is implementation specific.
public  voidinit(HttpServletRequest req)
     Initialize this provider context. The request object must contain the service specific data to allow the underlying implementation to be initialized.
public  booleanisAuthless(HttpServletRequest req)
     Get if the current Desktop session is non-authenticated (authless). Authless Desktop sessions are created by the Desktop and are not subject to the normal authentication process that is required for authenticated Desktop sessions.
public  booleanisDebugEnabled()
    
public  booleanisDebugErrorEnabled()
    
public  booleanisDebugMessageEnabled()
     Get if the debug level is set to message or higher.
public  booleanisDebugWarningEnabled()
     Get if the debug level is set to warning or higher.
public  voidrefresh()
     Causes Provider Context to throw away any cached data.
public  voidsetBooleanProperty(String channel, String name, boolean value)
     Sets a boolean property.
public  voidsetBooleanProperty(String channel, String name, boolean value, List pflist)
     Sets a boolean property according to the given filter criteria. Filter criteria can be specified using a series of PropertiesFilter objects.
public  voidsetClientProperty(String name, String value)
     Set a client property. Client properties are specific to the particular client accessing the portal, not to the ProviderContext object used to access them.
public  voidsetCollectionProperty(String channel, String key, Map val)
     Sets a collection property.
Parameters:
  channel - Channel name.
Parameters:
  key - Property name.
Parameters:
  value - Property value.
public  voidsetCollectionProperty(String channel, String key, Map val, List pflist)
     Sets a collection property according to the given filter criteria. Filter criteria can be specified using a series of PropertiesFilter objects.
public  voidsetCollectionProperty(String channel, String name, List value)
     Sets a collection property.
public  voidsetCollectionProperty(String channel, String key, List val, List pflist)
     Sets a collection property according to the given filter criteria. Filter criteria can be specified using a series of PropertiesFilter objects.
public  voidsetIntegerProperty(String channel, String name, int value)
     Sets an integer property.
public  voidsetIntegerProperty(String channel, String name, int value, List pflist)
     Sets an integer property according to the given filter criteria. Filter criteria can be specified using a series of PropertiesFilter objects.
public  voidsetProperty(String channel, String key, Object val)
    
public  voidsetSessionProperty(String name, Object val)
     Set a session property. There is a 1-1 mapping between a session and a ProviderContext object.
public  voidsetStringAttribute(String name, String val)
     Sets a string attribute. "Attributes" are settings that are not channel-specific.
public  voidsetStringProperty(String channel, String key, String val)
     Sets a string property.
public  voidsetStringProperty(String channel, String key, String val, List pflist)
     Sets a string property according to the given filter criteria. Filter criteria can be specified using a series of PropertiesFilter objects.



Method Detail
allContentChanged
public void allContentChanged()(Code)
Flags content for all channels as changed. Clients should use this method to inform the Provider Context that the content for all channels has been updated and any cached content for the channels should be considered stale.
This method should be used with caution because of the obvious performance implications. Content caching is done for channels as an optimization to prevent potentially expensive calls to get content. This method forces fresh content to be fetched from all channels.
For an example of when it makes sense to use this method, consider the case where the locale has changed. A new locale value means that any cached content is specific to the old locale value. Each channel must generate new content based on the new locale value.



contentChanged
public void contentChanged(String channelName)(Code)
Flags channel content as changed. Clients should use this method to inform the Provider Context that the content for a channel has been updated and any cached content for the channel should be considered stale.
This method should be used with caution because of the obvious performance implications. Content caching is done for channels as an optimization to prevent potentially expensive calls to get content. This method forces fresh content to be fetched for the named channel upon the next request.
For an example of when it makes sense to use this method, consider the case where a channel's content is affected (only) when it's edit page is processed. For desktop reloads, the content for the channel can be cached indefinetly, because we know the only thing that can cause the content to be changed is processing of its edit page. When the edit page is processed, we call this method to cause any cached content for this channel to be discarded, so the content will be regenerated based on the processed edit page.
Parameters:
  String - the channel name who's content has changed.



debugError
public void debugError(Object o)(Code)
Logs a message if the debugging level is "error". The location to store debugging messages is implementation dependent.
Parameters:
  o - Object to debug (o.toString() is logged).



debugError
public void debugError(Object o, Throwable t)(Code)
Logs a message and stack trace, if the debugging level is "error". The location to store debugging messages is implementation dependent.
Parameters:
  o - Object to debug (o.toString() is logged).
Parameters:
  t - Throwable object to print a stack trace of.



debugMessage
public void debugMessage(Object o)(Code)
logs a message if the debugging level is "message" or higher. The location to store debugging messages is implementation dependent.
Parameters:
  o - Object to debug (o.toString() is logged).



debugMessage
public void debugMessage(Object o, Throwable t)(Code)
Logs a message and stack trace if the debugging level is "message" or higher. The location to store debugging messages is implementation dependent.
Parameters:
  o - Object to debug (o.toString() is logged).
Parameters:
  t - Throwable object to log a stack trace of.



debugWarning
public void debugWarning(Object o)(Code)
Logs a message if the debugging level is "warning" or higher. The location to store debugging messages is implementation dependent.
Parameters:
  o - Object to debug (o.toString() is logged).



debugWarning
public void debugWarning(Object o, Throwable t)(Code)
Logs a message and stack trace if the debugging level is "warning" or higher. The location to store debugging messages is implementation dependent.
Parameters:
  o - Object to debug (o.toString() is logged).
Parameters:
  t - Throwable object to log a stack trace of.



decodeURLParameter
public String decodeURLParameter(String dec)(Code)
Decodes the URL encoded Unicode string This method is used for decoding urlencoded multi-byte characters that were passed as arguments in a URL
Parameters:
  dec - string to decode a String, decoded string This method just returns the argument back.Desktop handles the decoding of the url parameters, henceclients doesn't need to do decoding anymore.
See Also:   ProviderContext.encodeURLParameter



encodeURL
public String encodeURL(String url)(Code)
Encodes a URL. Rewrite the URL to include the session id.
Parameters:
  url - The URL to be encoded.



encodeURLParameter
public String encodeURLParameter(String enc)(Code)
URL encodes a unicode string This method is used for encoding multi-byte characters to be passed as arguments in a URL. This method converts the string to encode into a sequence of bytes using the default charset UTF-8() and then the sequence is converted to urlencoded format. All URL parameter values that are passed to the desktop and that may be localized (non-ascii) must be url encoded using this method and should be decoded using decodeURLParameter when getting it back from the request.
Parameters:
  enc - string to encode a String, encoded string
See Also:   ProviderContext.decodeURLParameter



escape
public String escape(String unescaped) throws ProviderContextException(Code)
Escapes a String This method escapes the string using an encoder class that encodes a specific type of markup. This method is used to allow provider code to encode content in a device-unaware manner.

The following is an example usage of this method, and illustrates how to encode content in a device-unaware fashion:

String unencoded = "";
String encoded = escape(unencoded);


The encoder class name used by this method is read from a client type property keyed "encoderClassName". If this property does not exist, EncoderClassNames.ENCODER_DEFAULT is assumed. unescaped. String to escape String. escaped String



existsBooleanProperty
public boolean existsBooleanProperty(String channel, String name) throws ProviderContextException(Code)
Test for the existence of a boolean property.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name. a boolean, true if theproperty exists, otherwise false.
exception:
  ProviderContextException - if an error occurs in testingfor the existence of a boolean property.



existsBooleanProperty
public boolean existsBooleanProperty(String channel, String name, List pflist) throws ProviderContextException(Code)
Test for the existence of the filtered boolean property. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If the property that matches the filter criteria does not exist, a new property will be created. Note that the "exact" flag in the PropertiesFilters has no meaning and will be ignored.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name.
Parameters:
  pflist - An ordered list of PropertiesFilter objects a boolean, true if theproperty exists, otherwise false.
exception:
  ProviderContextException - if an error occurs in testingfor the existence of a boolean property.



existsCollectionProperty
public boolean existsCollectionProperty(String channel, String name) throws ProviderContextException(Code)
Test for the existence of a collection property.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name. a boolean, true if theproperty exists, otherwise false.
exception:
  ProviderContextException - if an error occurs in testingfor the existence of a Collection property.



existsCollectionProperty
public boolean existsCollectionProperty(String channel, String name, List pflist) throws ProviderContextException(Code)
Test for the existence of the filtered collection property. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If the property that matches the filter criteria does not exist, a new property will be created. Note that the "exact" flag in the PropertiesFilters has no meaning and will be ignored.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name.
Parameters:
  pflist - An ordered list of PropertiesFilter objects a boolean, true if theproperty exists, otherwise false.
exception:
  ProviderContextException - if an error occurs in testingfor the existence of a Collection property.



existsCollectionProperty
public boolean existsCollectionProperty(String channel, String name, boolean localized) throws ProviderContextException(Code)
Test for the existence of a collection property. This method will also check for the existence of the localized version of the property.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name.
Parameters:
  localized - a boolean, whether to check theexistence oflocalized properties. a boolean, true if theproperty exists, otherwise false.
exception:
  ProviderContextException - if an error occurs in testingfor the existence of a Collection property.



existsIntegerProperty
public boolean existsIntegerProperty(String channel, String name) throws ProviderContextException(Code)
Test for the existence of an integer property.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name. a boolean, true if theproperty exists, otherwise false.
exception:
  ProviderContextException - if an error occurs in testingfor the existence of an integer property.



existsIntegerProperty
public boolean existsIntegerProperty(String channel, String name, List pflist) throws ProviderContextException(Code)
Test for the existence of the filtered integer property. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If the property that matches the filter criteria does not exist, a new property will be created. Note that the "exact" flag in the PropertiesFilters has no meaning and will be ignored.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name.
Parameters:
  pflist - An ordered list of PropertiesFilter objects a boolean, true if theproperty exists, otherwise false.
exception:
  ProviderContextException - if an error occurs in testingfor the existence of an integer property.



existsStringProperty
public boolean existsStringProperty(String channel, String name) throws ProviderContextException(Code)
Test for the existence of a string property.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name. a boolean, true if theproperty exists, otherwise false.
exception:
  ProviderContextException - if an error occurs in testingfor the existence of a String property.



existsStringProperty
public boolean existsStringProperty(String channel, String name, List pflist) throws ProviderContextException(Code)
Test for the existence of a filtered string property. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If the property that matches the filter criteria does not exist, a new property will be created. Note that the "exact" flag in the PropertiesFilters has no meaning and will be ignored.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name.
Parameters:
  pflist - An ordered list of PropertiesFilter objectsexistence oflocalized properties. a boolean, true if theproperty exists, otherwise false.
exception:
  ProviderContextException - if an error occurs in testingfor the existence of a String property.



existsStringProperty
public boolean existsStringProperty(String channel, String name, boolean localized) throws ProviderContextException(Code)
Test for the existence of a string property. This method will also check for the existence of the localized version of the property.
Parameters:
  channel - Channel name.
Parameters:
  name - a String, the property name.
Parameters:
  localized - a boolean, whether to check theexistence oflocalized properties. a boolean, true if theproperty exists, otherwise false.
exception:
  ProviderContextException - if an error occurs in testingfor the existence of a String property.



getAuthenticationType
public String getAuthenticationType()(Code)
Get the authentication type. The method returns a string denoting the authentication type that was used for the current session. No assumptions can be made about the format of the returned string. a String, the authentication type.



getBooleanProperty
public boolean getBooleanProperty(String channel, String name) throws ProviderContextException(Code)
Get a boolean property property.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name. Property value.
exception:
  ProviderContextException - if an error occurs in gettingthe boolean property.



getBooleanProperty
public boolean getBooleanProperty(String channel, String name, List pflist) throws ProviderContextException(Code)
Get the filtered boolean property property. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If there is no property that exactly matches the filter criteria, the best partial match is returned. When there is not even a partial match, an unfiltered property is returned.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  pflist - An ordered list of PropertiesFilter objects Property value.
exception:
  ProviderContextException - if an error occurs in gettingthe boolean property.



getBooleanProperty
public boolean getBooleanProperty(String channel, String name, boolean def) throws ProviderContextException(Code)
Get a boolean property property. This method returns a default value if the property does not exist.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value. Property value.
exception:
  ProviderContextException - if an error occurs in gettingthe boolean property.



getBooleanProperty
public boolean getBooleanProperty(String channel, String name, boolean def, List pflist) throws ProviderContextException(Code)
Get the filtered boolean property property. This method returns a default value if the property does not exist. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If there is no property that exactly matches the filter criteria, the best partial match is returned. When there is not even a partial match, an unfiltered property is returned.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value.
Parameters:
  pflist - An ordered list of PropertiesFilter objects Property value.
exception:
  ProviderContextException - if an error occurs in gettingthe boolean property.



getCharset
public String getCharset()(Code)
Get the character set. The character set is used for decoding input and encoding output. Character set.



getClassName
public String getClassName(String channel) throws ProviderContextException(Code)
Get the class name for the provider class that this object will be providing an environment for. This class name returned must implement the provider interface. This method is used to construct the provider object. It is used by container channels.
Parameters:
  channel - Channel name. String fully qualified class name(com.sun.portal.providers.foo.FooProvider).
exception:
  ProviderContextException - if an error occurs in getting theclass name.



getClientAndLocalePropertiesFilters
public List getClientAndLocalePropertiesFilters() throws ProviderContextException(Code)
Get the client and locale in the form of PropertiesFilter's. Each client and locale suffix is used to create PropertiesFilter. Note that by default, the PropertiesFilter objects return in the list are constructed with their "required" flag set to false. See the javadocs for PropertiesFilter for more information on the semantics of the required flag. Use getPropertiesFilter() method should you need to customize the required flag. This method is a convenience for putting together a list of properties filters for the current session's locale and client type. the property filter list returned from this method can be used as input to the to access properties in a locale and client type specific manner. List of PropertiesFilter objects representingthe client and locale setting.
exception:
  ProviderContextException - if an error occurs in creatingPropertiesFilter objects.
See Also:   PropertiesFilter
See Also:   PropertiesFilter.isRequired
See Also:   ProviderContext.getClientPropertiesFilters()
See Also:   ProviderContext.getLocalePropertiesFilters()



getClientPath
public String getClientPath()(Code)
Get the client path. The client path is one of several components used to lookup Desktop templates and JSPs. This allows the lookup to be client-specific. Client path.



getClientPropertiesFilters
public List getClientPropertiesFilters() throws ProviderContextException(Code)
Get the client PropertiesFilter's. The hierarchy of client PropertiesFilter is returned. Note that by default, the PropertiesFilter objects return in the list are constructed with their "required" flag set to false. See the javadocs for PropertiesFilter for more information on the semantics of the required flag. Use getPropertiesFilter() method should you need to customize the required flag. List of PropertiesFilter objects representingthe client.
exception:
  ProviderContextException - if an error occurs in creatingPropertiesFilter objects.
See Also:   PropertiesFilter
See Also:   PropertiesFilter.isRequired



getClientPropertiesFilters
public List getClientPropertiesFilters(String clientType)(Code)
Get the client PropertiesFilter's for a given clientType. The hierarchy of client PropertiesFilter is returned. Note that by default, the PropertiesFilter objects return in the list are constructed with their "required" flag set to false. See the javadocs for PropertiesFilter for more information on the semantics of the required flag. Use getPropertiesFilter() method should you need to customize the required flag. It is advisable to use getClientPropertiesFilters() if getting the filters for the current clientType.
Parameters:
  clientType - client type. List of PropertiesFilter objects representingthe client.
See Also:   PropertiesFilter
See Also:   PropertiesFilter.isRequired
See Also:   ProviderContext.getClientPropertiesFilters()



getClientProperty
public String getClientProperty(String name)(Code)
Get a client property. Client properties are specific to the particular client accessing the portal, not to the ProviderContext object used to access them.
Client properties are only guaranteed to persist for the life of the request, although typically they will persist for the life of the session.
Parameters:
  name - a String, the property name. a String, the property value.



getClientType
public String getClientType()(Code)
Get the client type. There is no requirement as to how the client type is determined. It may be hardcoded, derived from the session, or otherwise. Client type.



getClientTypeProperties
public Set getClientTypeProperties(String clientType, String key)(Code)
Get a set of client type properties for the given client type.
Parameters:
  clientType - Client type to get the property keys from.
Parameters:
  key - Property key. Set of property values.



getClientTypeProperty
public String getClientTypeProperty(String key)(Code)
Get a client type property for the user's client type.
Parameters:
  key - Property key. Property value.
See Also:   ProviderContext.getClientType()



getClientTypeProperty
public String getClientTypeProperty(String clientType, String key)(Code)
Get a client type property for the given client type.
Parameters:
  clientType - Client type to get the property from.
Parameters:
  key - Property key. Property value.



getCollectionProperty
public Map getCollectionProperty(String channel, String name) throws ProviderContextException(Code)
Get a collection property. Here, a collection is used to refer to a multi-value property. Depending on the context, it is either the analogue of Java Maps or List. For List, the returned Java Map object contains key-value pairs where the key equals the value. For example, to treat the Map object as a List, do the following:

Set list = map.keySet();

The Java Map object returned from this method does not fronts the persistent store for the property. Changes to the return value are not persisted.
Changes must be persisted with setMapProperty() call. For example,

Map m = pc.getCollectionProperty("foo");
m.put("a", "1");
pc.setCollectionProperty("foo", m);


Parameters:
  channel - Channel name.
Parameters:
  name - Property name. Property value, a Java Map that mapsStrings to Java objects, either String,Integer, Boolean, or Map.
exception:
  ProviderContextException - if an error occurs in getting theCollection property.
See Also:   ProviderContext.setCollectionProperty(String,String,Map)
See Also:   ProviderContext.setCollectionProperty(String,String,List)




getCollectionProperty
public Map getCollectionProperty(String channel, String name, Map def) throws ProviderContextException(Code)
Get a collection property. This method returns a default value if the property does not exist.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value. Property value, a Java Map that mapsStrings to Java objects, either String,Integer, Boolean, or Map.
exception:
  ProviderContextException - if an error occurs in gettingthe Collection property.
See Also:   ProviderContext.getCollectionProperty(String,String)



getCollectionProperty
public Map getCollectionProperty(String channel, String name, List pflist) throws ProviderContextException(Code)
Get the filtered Collection property. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If there is no property that exactly matches the filter criteria, a partial match is returned.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  pflist - An ordered list of PropertiesFilter objects Property value.
exception:
  ProviderContextException - if an error occurs in getting thethe filtered String property.
See Also:   PropertiesFilter



getCollectionProperty
public Map getCollectionProperty(String channel, String name, Map def, List pflist) throws ProviderContextException(Code)
Get the filtered Collection property. This method returns a default value if the property does not exist. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If there is no property that exactly matches the filter criteria, a partial match is returned.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value.
Parameters:
  pflist - An ordered list of PropertiesFilter objects Property value.
exception:
  ProviderContextException - if an error occurs in getting thethe filtered String property.
See Also:   PropertiesFilter



getCollectionProperty
public Map getCollectionProperty(String channel, String name, boolean localized) throws ProviderContextException(Code)
Get the localized version of a collection property. Locales are searched from more to less specific. For example, for a locale setting of "en_US_WE", the search order would be: en_US_WE, en_US, en. If the locale-specific property is not found, then the non-locale-specific version is returned (if it exists).
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  localized - Search for a localized version? Property value, a Java Map that mapsStrings to Java objects, either String,Integer, Boolean, or Map.
exception:
  ProviderContextException - if an error occurs in gettinglocalized version of the Collection property.
See Also:   ProviderContext.getCollectionProperty(String,String)



getCollectionProperty
public Map getCollectionProperty(String channel, String name, Map def, boolean localized) throws ProviderContextException(Code)
Get the localized version of a collection property.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value.
Parameters:
  localized - Search for a localized version? Property value, a Java Map that mapsStrings to Java objects, either String,Integer, Boolean, or Map.
exception:
  ProviderContextException - if an error occurs in gettingthe localized version of the Collection property.
See Also:   ProviderContext.getCollectionProperty(String,String)



getConfigProperty
public String getConfigProperty(String key)(Code)
Get the named configuration property.
Parameters:
  key - a String, the property name. a String, the property value.



getContentType
public String getContentType()(Code)
Get the content type. This value is used to determine if a provider is able to produce content for the client's device. a String value



getDefaultChannelName
public String getDefaultChannelName()(Code)
Get the default channel name. This method returns the channel name from the session using getSessionProperty if exists. If not returns the defaultChannelName attribute using getStringAtribute a String, name of the channel
See Also:   ProviderContext.getSessionProperty(String)
See Also:   ProviderContext.getStringAttribute(String)



getDefaultClientType
public String getDefaultClientType()(Code)
Get the default client type. Default client type.



getDesktopType
public String getDesktopType()(Code)
Get the Desktop type. The Desktop type, or also known as template type, is a string that is one of several indexes used to lookup Desktop templates and JSP files. The Desktop type is typically used to group such Desktop customization files to provide different themes. Desktop type as a string.



getDesktopURL
public String getDesktopURL(HttpServletRequest req)(Code)
Get the Desktop URL. The Desktop URL is the absolute URL used to access the Desktop application. For example: http://SERVER:PORT/ps/desktop. The request object parameter is included to facilitate implementations. It may be used to build the Desktop URL by supplying the server, port, and protocol of the request. It is not required that the request object be utilizied to generate the Desktop URL.
Parameters:
  req - Request object containing the protocol, server, port, etc.information required to build the Desktop URL. If the implementationdoes not use the request object, this parameter may be null. String representation of the URL.



getDesktopURL
public String getDesktopURL(HttpServletRequest req, Map query, Map pathInfo)(Code)
Get the Desktop URL. The Desktop URL is the absolute URL used to access the Desktop application. For example: http://SERVER:PORT/ps/desktop/pathinfo?query. The request object parameter is included to facilitate implementations. It may be used to build the Desktop URL by supplying the server, port, and protocol of the request. It is not required that the request object be utilizied to generate the Desktop URL. The pathInfo Map passed in as an argument will be encoded and appended as a pathInfo to the desktopURL. The key/value pairs in the pathInfo Map can be accessed by calling req.getParameter(). path info parameters are overriden by query string params, which are overriden by post parameters. query Map passed in as an argument will be appended as query string to the desktopURL. This method is equivalent to calling getDesktopURL() if pathInfo and query are null.
Parameters:
  req - Request object containing the protocol, server, port, etc.information required to build the Desktop URL. If the implementationdoes not use the request object, this parameter may be null.
Parameters:
  pathInfo - Map.
Parameters:
  query - Map. queryString key/value pairs to be appended to URL. String representation of the URL.
See Also:   ProviderContext.getDesktopURL(HttpServletRequest req)



getDesktopURL
public String getDesktopURL(HttpServletRequest req, Map query, Map pathInfo, boolean escape)(Code)
Get the Desktop URL. The Desktop URL is the absolute URL used to access the Desktop application. For example: http://SERVER:PORT/ps/desktop/pathinfo?query. This method internally calls escape to escape the desktop url using a client specific encoder if escape flag is true. This method is equivalent to calling getDesktopURL(req, query, pathInfo) if escape flag is false.
Parameters:
  req - Request object containing the protocol, server, port, etc.information required to build the Desktop URL. If the implementationdoes not use the request object, this parameter may be null.
Parameters:
  pathInfo - Map.
Parameters:
  query - Map. queryString key/value pairs to be appended to URL.
Parameters:
  escape - Boolean. flag specifying whether to escape the url stringspecific to the client using a client specific encoder. String representation of the URL.
See Also:   ProviderContext.getDesktopURL(HttpServletRequest req,Map query,Map pathInfo)
See Also:   ProviderContext.escape(String unescaped)



getDesktopURL
public String getDesktopURL(HttpServletRequest req, String query, boolean escape)(Code)
Get the Desktop URL. The Desktop URL is the absolute URL used to access the Desktop application. For example: http://SERVER:PORT/ps/desktop?queryString. query String passed in as an argument will be appended as query string to the desktopURL. This method is equivalent to calling getDesktopURL() if query is null and escape flag false.
Parameters:
  req - Request object containing the protocol, server, port, etc.information required to build the Desktop URL. If the implementationdoes not use the request object, this parameter may be null.
Parameters:
  query - String. queryString to be appended to URL.
Parameters:
  escape - Boolean. flag specifying whether to escape the url stringspecific to the client using a client specific encoder. String representation of the URL.
See Also:   ProviderContext.getDesktopURL(HttpServletRequest req)
See Also:   ProviderContext.escape(String unescaped)



getIntegerProperty
public int getIntegerProperty(String channel, String name) throws ProviderContextException(Code)
Get an integer property.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name. Property value.
exception:
  ProviderContextException - if an error occurs in gettingthe integer property.



getIntegerProperty
public int getIntegerProperty(String channel, String name, List pflist) throws ProviderContextException(Code)
Get the filtered integer property. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If the property that matches the filter criteria does not exist, a new property will be created. Note that the "exact" flag in the PropertiesFilters has no meaning and will be ignored.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  pflist - An ordered list of PropertiesFilter objects Property value.
exception:
  ProviderContextException - if an error occurs in gettingthe integer property.



getIntegerProperty
public int getIntegerProperty(String channel, String name, int def) throws ProviderContextException(Code)
Get an integer property. This method returns a default value if the property does not exist.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value. Property value.
exception:
  ProviderContextException - if an error occurs in gettingthe integer property.



getIntegerProperty
public int getIntegerProperty(String channel, String name, int def, List pflist) throws ProviderContextException(Code)
Get an integer property. This method returns a default value if the property does not exist. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If the property that matches the filter criteria does not exist, a new property will be created. Note that the "exact" flag in the PropertiesFilters has no meaning and will be ignored.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value.
Parameters:
  pflist - An ordered list of PropertiesFilter objects Property value.
exception:
  ProviderContextException - if an error occurs in gettingthe integer property.



getLocale
public Locale getLocale()(Code)
Get the locale. Java Localeobject representation of the locale.
See Also:   java.util.Locale



getLocalePropertiesFilters
public List getLocalePropertiesFilters() throws ProviderContextException(Code)
Get the locale in the form of PropertiesFilter's. Each locale suffix is used to create PropertiesFilter. Note that by default, the PropertiesFilter objects return in the list are constructed with their "required" flag set to false. See the javadocs for PropertiesFilter for more information on the semantics of the required flag. Use getPropertiesFilter() method should you need to customize the required flag. List of PropertiesFilter objects representingthe locale setting.
exception:
  ProviderContextException - if an error occurs in creatingPropertiesFilter objects.
See Also:   PropertiesFilter
See Also:   PropertiesFilter.isRequired



getLocaleString
public String getLocaleString()(Code)
Get the string form of the locale. The various locale suffixes are combined together using the underscore character ("_") as:
LANG_COUNTRY_VARIANT

If a particular suffix is not present, then it is ommited from the string. An example for a language setting of "en", and country setting of "US" is "en_US". String representation of the locale.



getLoginURL
public String getLoginURL()(Code)
Get the login URL. Providers may use this value to generate links to the login url. The URL returned from this method is encoded. Login URL as a string.



getLogoutURL
public String getLogoutURL()(Code)
Get the logout URL. The result of making a connection to the logout URL is typcically the termination of the user's session. What actually happens is dependent on the application receiving the URL connection.

Providers may use this value to generate links that allow the user to end their session. Logout URL as a string.



getNames
public Iterator getNames(String channel) throws ProviderContextException(Code)
Get property names for the channel.
Parameters:
  channel - Channel name. Iterator over String objects.
exception:
  ProviderContextException - if an error occurs in getting theproperty names.



getParentContainerName
public String getParentContainerName(String channel)(Code)
Get the display container name for the named channel. A display container visually holds another channel. This method returns the parent container name in which this channel is contained on the desktop page. returns null if this channel is the parent container or if this method is called outside getContent() in Provider class. A channel only has a display container when it is being visually displayed within a container channel. This method relies on CPC.getContent() to set up the display container name. Calling this method in a call stack that does not include CPC.getContent() somewhere above the current stack frame will result in a return value of null. For an example of where it makes sense to use this method, consider this: container A calls CPC.getContent() to gather content for the channels that is visually contains. CPC.getContent() calls channel X's getContent() method. Channel X may now call PC.getParentContainerName(). For an exmaple of where it *does not* make sense to us this method, consider this: channel X calls PC.getParentContainerName() from within it's getEdit() method. When a channel is displaying it's edit page, it is not visually contained. At this point, channel X has no display container as PC.getParentContainerName() will return null.
Parameters:
  channel - Channel name for which the parent is requested. a String, name of the parent containeror null if parent is not known.
See Also:    ContainerProviderContext.getContent()



getProperty
public Object getProperty(String channel, String name) throws ProviderContextException(Code)
Get a property. The value retured from this method is a Java Object, of type String, Integer, Boolean, or Map.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name. Property value.
exception:
  ProviderContextException - if an error occurs in getting theproperty.



getProperty
public Object getProperty(String channel, String name, Object def) throws ProviderContextException(Code)
Get a property. The value retured from this method is a Java Object, of type String, Integer, Boolean, or Map. If the property does not exist, then the default value is returned.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value. Property value.
exception:
  ProviderContextException - if an error occurs in setting theproperty.



getProviderName
public String getProviderName(String channel) throws ProviderContextException(Code)
Get the name of the provider that backs the channel that this object provides an environment for. The format of the provider name is implementation dependent. The provider name is not necessarily equal to the provider class name (see getProviderClassName()).
Parameters:
  channel - Channel name. Provider name.
exception:
  ProviderContextException - if an error occurs in getting theprovider name.



getProviderVersion
public int getProviderVersion(String channel) throws ProviderContextException(Code)
Get the version of the provider schema for the named channel. The provider schema defines what properties are available to a provider. Depending on the schema version number, the provider can assume the existence of and appropriate defaults for particular channel properties. The exact set of properties that a particular schema version maps to is documented in the product manuals, for each provider. Additionally, the exists*Property() methods may be used to determine the presence or absence of specific properties. The return value from this method does not indicate the version of the provider class being used for the channel. Provider version.
See Also:   ProviderContext.existsStringProperty(String,String)
See Also:   ProviderContext.existsStringProperty(String,String,List)
See Also:   ProviderContext.existsStringProperty(String,String,boolean)
See Also:   ProviderContext.existsBooleanProperty(String,String)
See Also:   ProviderContext.existsBooleanProperty(String,String,List)
See Also:   ProviderContext.existsIntegerProperty(String,String)
See Also:   ProviderContext.existsIntegerProperty(String,String,List)
See Also:   ProviderContext.existsCollectionProperty(String,String)
See Also:   ProviderContext.existsCollectionProperty(String,String,List)
See Also:   ProviderContext.existsCollectionProperty(String,String,boolean)



getRequestServer
public StringBuffer getRequestServer(HttpServletRequest req)(Code)
Get the request server. This is a replacement for HttpUtils.getRequestURL() because the version of that method does not use the Host HTTP header field to reconstruct the URL. The difference in this version is that it grabs the servername:port from the Host header if it is there.
Parameters:
  req - HTTP request object to grab the server information from. Buffer containing the request server.
See Also:   javax.servlet.http.HttpUtils.getRequestURL(HttpServletRequest)



getRoles
public Set getRoles()(Code)
Get the roles the user is in. This method returns the set of strings where each string corresponds to the role the user is in. Set of roles the user is in.



getServletConfig
public ServletConfig getServletConfig()(Code)
Get the Servlet Config. ServletConfig object.
See Also:   ProviderContext.getServletContext()



getServletContext
public ServletContext getServletContext()(Code)
Get the Servlet Context. ServletContext object.



getSessionID
public String getSessionID()(Code)
Get the unique session identifier. The format of the return value is implementation specific. The only guarantee is that it is unique (each user session has a unique session ID). Session ID.



getSessionProperty
public Object getSessionProperty(String name)(Code)
Get a session property. There is a 1-1 mapping between a session and a ProviderContext object. Session properties are therefore specific to a and instance of a ProviderContext object. Session properties are made available for garbage collection when the session ends.
Parameters:
  name - Property name. Property value. If the property isnot not found, then null is returned.



getStaticContentPath
public String getStaticContentPath()(Code)
Get the URI prefix to web server static content. Static content may be located separately from dynamic content such as servlets and JSP. This URI prefix is used to access static web content such as images and HTML files. For example, to reference an image, a the href might look like:

http://server:port/STATIC_URI/images/foo.gif URI prefix.



getStringAttribute
public String getStringAttribute(String name)(Code)
Get a string attribute. "Attributes" are settings that are not channel-specific. An example of an attribute might be the user's first and last name. Channel-specific settings are called "properties". Properties can be retrieved by calling the get*Property() methods. Whether a particular value is considered a property or an attribute depends on the underlying implementation of ProviderContext.
Parameters:
  name - Attribute name. Attribute value as a string. If attribute isnot not found, null is returned.



getStringAttribute
public String getStringAttribute(String name, Locale locale)(Code)
Get a localised string attribute if available. "Attributes" are settings that are not channel-specific. An example of an attribute might be the user's first and last name. This API will check if localized sub attribute is available for any given locale. If the sub attribute(ex:cn;lang-ja) is available, the value of sub attribute is returned. If the sub-attribute is NULL, it will fetch the value of the attribute.Also note that this API performs fallback mechanism to find out the localised value. Hence the value returned by getStringAttribute("cn", Locale.Japanese) is not necessarily the value of the attribute cn;lang-ja, it might be the value of attribte "cn" Channel-specific settings are called "properties". Properties can be retrieved by calling the get*Property() methods. Whether a particular value is considered a property or an attribute depends on the underlying implementation of ProviderContext.
Parameters:
  name - Attribute name. Attribute value as a string. If attribute isnot not found, null is returned.



getStringProperty
public String getStringProperty(String channel, String name) throws ProviderContextException(Code)
Get a String property.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name. Property value.
exception:
  ProviderContextException - if an error occurs in getting theString property.



getStringProperty
public String getStringProperty(String channel, String name, List pflist) throws ProviderContextException(Code)
Get the filtered String property. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If there is no property that exactly matches the filter criteria, the best partial match is returned. When there is not even a partial match, an unfiltered property is returned.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  pflist - An ordered list of PropertiesFilter objects Property value.
exception:
  ProviderContextException - if an error occurs in getting thethe filtered String property.
See Also:   PropertiesFilter



getStringProperty
public String getStringProperty(String channel, String name, List pflist, boolean exact) throws ProviderContextException(Code)
Get the filtered String property. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If there is no property that exactly matches the filter criteria, null value is returned
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  pflist - An ordered list of PropertiesFilter objects Property value.
exception:
  ProviderContextException - if an error occurs in getting thethe filtered String property.
See Also:   PropertiesFilter



getStringProperty
public String getStringProperty(String channel, String name, String def) throws ProviderContextException(Code)
Get a String property. This method returns a default value if the property does not exist.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value. Property value.
exception:
  ProviderContextException - if an error occurs in getting theString property.



getStringProperty
public String getStringProperty(String channel, String name, String def, List pflist) throws ProviderContextException(Code)
Get the filtered String property. This method returns a default value if the property does not exist. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If there is no property that exactly matches the filter criteria, the best partial match is returned. When there is not even a partial match, an unfiltered property is returned.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value.
Parameters:
  pflist - An ordered list of PropertiesFilter objects Property value.
exception:
  ProviderContextException - if an error occurs in getting thethe filtered String property.
See Also:   PropertiesFilter



getStringProperty
public String getStringProperty(String channel, String name, boolean localized) throws ProviderContextException(Code)
Get the localized version of a String property. Locales are searched from more to less specific. For example, for a locale setting of "en_US_WE", the search order would be: en_US_WE, en_US, en. If the locale-specific property is not found, then the non-locale-specific version is returned (if it exists).
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  localized - Search for a localized version? Property value.
exception:
  ProviderContextException - if an error occurs in getting thelocalized version of the String property.



getStringProperty
public String getStringProperty(String channel, String name, String def, boolean localized) throws ProviderContextException(Code)
Get the localized version of a String property. This method returns a default value if the property does not exist. Locales are searched from more to less specific. For example, for a locale setting of "en_US_WE", the search order would be: en_US_WE, en_US, en. If the locale-specific property is not found, then the non-locale-specific version is returned (if it exists).
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  def - Default value.
Parameters:
  localized - Search for a localized version? Property value.
exception:
  ProviderContextException - if an error occurs in getting thelocalized version of the String property.



getTemplate
public StringBuffer getTemplate(String name, String file) throws ProviderContextException(Code)
Get a desktop template. The actual template buffer returned is based on the Desktop type, locale, channel, client type, and the template name.
Parameters:
  name - Channel name
Parameters:
  file - Template name to return. Buffer containng the template.
exception:
  ProviderContextException - if an error occurs in getting thedesktop template.



getTemplate
public StringBuffer getTemplate(String desktopType, String locale, String name, String clientType, String file, String baseDir) throws ProviderContextException(Code)
Get a desktop template. The actual template buffer returned is based on the Desktop type, locale, channel, client type, and the template name.
Parameters:
  desktopType - Desktop type.
Parameters:
  locale - Locale.
Parameters:
  name - Channel name.
Parameters:
  cilentType - client type.
Parameters:
  file - Template name to return.
Parameters:
  baseDir - the base directory from which the lookup mechanismbegins its lookup. Buffer containng the template.
exception:
  ProviderContextException - if an error occurs in getting thedesktop template.



getTemplate
public StringBuffer getTemplate(String name, String file, Hashtable table) throws ProviderContextException(Code)
Get and tag swaps a desktop template. The actual template buffer returned is based on the the name, locale, client path, and Desktop type.
Parameters:
  name - Channel name
Parameters:
  file - Template name to return
Parameters:
  table - Tag table to use for tag swapping. Buffer containng the template.
exception:
  ProviderContextException - if an error occurs in getting ortag swapping the desktop template.



getTemplate
public StringBuffer getTemplate(String desktopType, String locale, String name, String clientType, String file, Hashtable table, String baseDir) throws ProviderContextException(Code)
Get and tag swaps a desktop template. The actual template buffer returned is based on the the name, locale, client path, and Desktop type.
Parameters:
  desktopType - Desktop type.
Parameters:
  locale - Locale.
Parameters:
  name - Channel name.
Parameters:
  cilentType - client type.
Parameters:
  file - Template name to return.
Parameters:
  table - Tag table to use for tag swapping.
Parameters:
  baseDir - the base directory from which the lookup mechanismbegins its lookup. Buffer containng the template.
exception:
  ProviderContextException - if an error occurs in getting ortag swapping the desktop template.



getTemplateMostSpecificPath
public File getTemplateMostSpecificPath(String name, String file) throws ProviderContextException(Code)
Get the most specific template path for the given channel name and the given template name. The file returned may not exist at all. If non-null, the key returned by this method will map to the most specific template file. The file may or may not exist. The format of the returned path is implementation dependent.
Parameters:
  name - Channel name.
Parameters:
  file - The template name, or null if the templatefor the name does not exist. Path key to access the template.
exception:
  ProviderContextException - if an error occurs in getting themost specific template path.



getTemplateMostSpecificPath
public File getTemplateMostSpecificPath(String desktopType, String locale, String name, String clientType, String file, String baseDir) throws ProviderContextException(Code)
Get the most specific template path for the given channel name and the given template name. The file returned may not exist at all. If non-null, the key returned by this method will map to the most specific template file. The file may or may not exist. The format of the returned path is implementation dependent.
Parameters:
  desktopType - Desktop type.
Parameters:
  locale - Locale.
Parameters:
  name - Channel name.
Parameters:
  cilentType - client type.
Parameters:
  file - The template name.
Parameters:
  baseDir - the base directory from which the lookup mechanismbegins its lookup. Path key to access the template.
exception:
  ProviderContextException - if an error occurs in getting themost specific template path.



getTemplatePath
public File getTemplatePath(String name, String file) throws ProviderContextException(Code)
Get the template path for the given channel name and the given template name. If non-null, the key returned by this method will map to a valid template file. The format of the returned path is implementation dependent.
Parameters:
  name - Channel name.
Parameters:
  file - The template name, or null if the templatefor the name does not exist. Path key to access the template.
exception:
  ProviderContextException - if an error occurs in getting thetemplate path.



getTemplatePath
public File getTemplatePath(String desktopType, String locale, String name, String clientType, String file, String baseDir) throws ProviderContextException(Code)
Get the template path for the given channel name and the given template name. If non-null, the key returned by this method will map to a valid template file. The format of the returned path is implementation dependent.
Parameters:
  desktopType - Desktop type.
Parameters:
  locale - Locale.
Parameters:
  name - Channel name.
Parameters:
  cilentType - client type.
Parameters:
  file - The template name.
Parameters:
  baseDir - the base directory from which the lookup mechanismbegins its lookup. Path key to access the template.
exception:
  ProviderContextException - if an error occurs in getting thetemplate path.



getTopChannelName
public String getTopChannelName(HttpServletRequest req)(Code)
Get the top channel name. This method returns the top channel for the current request, identified by the request object argument. The top channel is responsible for directly rendering the portal page or by partially or wholly delegating the rendering to one or more channels.
Parameters:
  req - HttpServletRequest a String, name of the channel



getUserID
public String getUserID()(Code)
Get the user identifier. The format of the return value is implementation specific. There is no guarantee that this value is unique (there may be multiple user sessions for a given user identifier). User identifier.



init
public void init(HttpServletRequest req)(Code)
Initialize this provider context. The request object must contain the service specific data to allow the underlying implementation to be initialized. This data might be cookies, HTTP headers, etc. The details of how the request object is used is specific to the implementation of this interface.
Parameters:
  req - Request object containing service specific data.



isAuthless
public boolean isAuthless(HttpServletRequest req)(Code)
Get if the current Desktop session is non-authenticated (authless). Authless Desktop sessions are created by the Desktop and are not subject to the normal authentication process that is required for authenticated Desktop sessions. When writing providers to be used in the context of an authless Desktop, it is important to keep several factors in mind. It is typical that many clients will be accessing a single authless Desktop session. The implication is that changing properties for an authless channel affects all accessing clients. Normally, authless providers are configured to hold state in client properties instead of provider properties. Desktop session properties are per-Desktop session; any Desktop session properties that are set for an authless user are shared among all authless users. There can be many authless Desktop sessions; such sessions are associated with a particular user ID.
Parameters:
  req - Request object . true if the current Desktop session is an authlesssession otherwise false.



isDebugEnabled
public boolean isDebugEnabled()(Code)
Get if the debug is enabled true if the debugging is on,otherwise false.



isDebugErrorEnabled
public boolean isDebugErrorEnabled()(Code)
Get if the debug is set to error true if the debugging level is set to error,otherwise false.



isDebugMessageEnabled
public boolean isDebugMessageEnabled()(Code)
Get if the debug level is set to message or higher. true if the debugging level is set to messageor higher, otherwise false.



isDebugWarningEnabled
public boolean isDebugWarningEnabled()(Code)
Get if the debug level is set to warning or higher. true if the debugging level is set to warningor higher, otherwise false.



refresh
public void refresh()(Code)
Causes Provider Context to throw away any cached data. This method informs the Provider Context that the system has changed state in a such a way that cached data (if any) should be considered stale.
This method should be used with caution because of the obvious performance implications. If a Provider Context caches data, it is most likely doing so as a performance optimization. Calling this method causes such optimizations to be negated, until the Provider Context can re-cache the data.
For an exaple of when it makes sense to call this method, consider the following: the Provider Context implementation is driven by a single large chunk of data that is read from an LDAP server. The raw data is passed to the Provider Context by the Desktop. To be useful, the Provider Context must parse the raw data into an internal representation. Parsing the raw data is expensive, so the Provider Context caches the internal representation and does not re-generate it every request. However, the Provider Context must throw away the internal representation if the raw data changes. The Desktop notifies the Provider Context when the raw data changes by calling refresh. This informs the Provider Context that is must throw away the internal representation and re-generate.



setBooleanProperty
public void setBooleanProperty(String channel, String name, boolean value) throws ProviderContextException(Code)
Sets a boolean property.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  value - Property value.
exception:
  ProviderContextException - if an error occurs in settingthe boolean property.



setBooleanProperty
public void setBooleanProperty(String channel, String name, boolean value, List pflist) throws ProviderContextException(Code)
Sets a boolean property according to the given filter criteria. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If the property that matches the filter criteria does not exist, the most specific, existing property gets set. If only the default value existed, it sets the default value. If the default and filtered properties existed, it sets the most specific existing filtered property. Note that the "exact" flag in the PropertiesFilters has no meaning and will be ignored.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  value - Property value.
Parameters:
  pflist - An ordered list of PropertiesFilter objects
exception:
  ProviderContextException - if an error occurs in settingthe boolean property.



setClientProperty
public void setClientProperty(String name, String value)(Code)
Set a client property. Client properties are specific to the particular client accessing the portal, not to the ProviderContext object used to access them. In some cases, there is a 1-1 mapping between client device and ProviderContext object, however, client code cannot make this assumption.
Client properties are only guaranteed to persist for the life of the request, although typically they will persist for the life of the session.
Parameters:
  name - a String, the property name.
Parameters:
  value - String, the property value.



setCollectionProperty
public void setCollectionProperty(String channel, String key, Map val) throws ProviderContextException(Code)
Sets a collection property.
Parameters:
  channel - Channel name.
Parameters:
  key - Property name.
Parameters:
  value - Property value. New property value.
exception:
  ProviderContextException - if an error occurs in settingthe Collection property.
See Also:   ProviderContext.getCollectionProperty(String,String)



setCollectionProperty
public void setCollectionProperty(String channel, String key, Map val, List pflist) throws ProviderContextException(Code)
Sets a collection property according to the given filter criteria. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If the property that matches the filter criteria does not exist, the most specific, existing property gets set. If only the default value existed, it sets the default value. If the default and filtered properties existed, it sets the most specific existing filtered property. Note that the "exact" flag in the PropertiesFilters has no meaning and will be ignored.
Parameters:
  channel - Channel name.
Parameters:
  key - Property name.
Parameters:
  value - Property value.
Parameters:
  pflist - An ordered list of PropertiesFilter objects
exception:
  ProviderContextException - if an error occurs in setting thecollection property.
See Also:   PropertiesFilter



setCollectionProperty
public void setCollectionProperty(String channel, String name, List value) throws ProviderContextException(Code)
Sets a collection property.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  value - Proeprty value.
exception:
  ProviderContextException - if an error occurs in settingthe Collection property.
See Also:   ProviderContext.getCollectionProperty(String,String)



setCollectionProperty
public void setCollectionProperty(String channel, String key, List val, List pflist) throws ProviderContextException(Code)
Sets a collection property according to the given filter criteria. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If the property that matches the filter criteria does not exist, the most specific, existing property gets set. If only the default value existed, it sets the default value. If the default and filtered properties existed, it sets the most specific existing filtered property. Note that the "exact" flag in the PropertiesFilters has no meaning and will be ignored.
Parameters:
  channel - Channel name.
Parameters:
  key - Property name.
Parameters:
  value - Property value.
Parameters:
  pflist - An ordered list of PropertiesFilter objects
exception:
  ProviderContextException - if an error occurs in setting thecollection property.
See Also:   PropertiesFilter



setIntegerProperty
public void setIntegerProperty(String channel, String name, int value) throws ProviderContextException(Code)
Sets an integer property.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  value - Property value.
exception:
  ProviderContextException - if an error occurs in settingthe integer property.



setIntegerProperty
public void setIntegerProperty(String channel, String name, int value, List pflist) throws ProviderContextException(Code)
Sets an integer property according to the given filter criteria. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If the property that matches the filter criteria does not exist, the most specific, existing property gets set. If only the default value existed, it sets the default value. If the default and filtered properties existed, it sets the most specific existing filtered property. Note that the "exact" flag in the PropertiesFilters has no meaning and will be ignored.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  value - Property value.
Parameters:
  pflist - An ordered list of PropertiesFilter objects
exception:
  ProviderContextException - if an error occurs in settingthe integer property.



setProperty
public void setProperty(String channel, String key, Object val) throws ProviderContextException(Code)
TBD



setSessionProperty
public void setSessionProperty(String name, Object val)(Code)
Set a session property. There is a 1-1 mapping between a session and a ProviderContext object. Session properties are therefore specific to a and instance of a ProviderContext object. Session properties are made available for garbage collection when the session ends.
Parameters:
  name - The property name.
Parameters:
  value - The property value.



setStringAttribute
public void setStringAttribute(String name, String val)(Code)
Sets a string attribute. "Attributes" are settings that are not channel-specific. An example of an attribute might be the user's first and last name. Channel-specific settings are called "properties". Properties can be set by calling the set*Property() methods. Whether a particular value is considered a property or an attribute depends on the underlying implementation of ProviderContext.
Parameters:
  name - Attribute name.
Parameters:
  name - Attribute value.



setStringProperty
public void setStringProperty(String channel, String key, String val) throws ProviderContextException(Code)
Sets a string property.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  value - Property value.
exception:
  ProviderContextException - if an error occurs in setting theString property.



setStringProperty
public void setStringProperty(String channel, String key, String val, List pflist) throws ProviderContextException(Code)
Sets a string property according to the given filter criteria. Filter criteria can be specified using a series of PropertiesFilter objects. The order in that the PropertiesFilter objects are listed determines the order that the property is searched. If the property that matches the filter criteria does not exist, the most specific, existing property gets set. If only the default value existed, it sets the default value. If the default and filtered properties existed, it sets the most specific existing filtered property. Note that the "exact" flag in the PropertiesFilters has no meaning and will be ignored.
Parameters:
  channel - Channel name.
Parameters:
  name - Property name.
Parameters:
  value - Property value.
Parameters:
  pflist - An ordered list of PropertiesFilter objects
exception:
  ProviderContextException - if an error occurs in setting theString property.
See Also:   PropertiesFilter



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