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Java Source Code / Java Documentation » Build » ANT » org.apache.tools.ant.taskdefs.optional.extension

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.apache.tools.ant.taskdefs.optional.extension .Extension

Extension

final public class Extension (Code)

Utility class that represents either an available "Optional Package" (formerly known as "Standard Extension") as described in the manifest of a JAR file, or the requirement for such an optional package.

For more information about optional packages, see the document Optional Package Versioning in the documentation bundle for your Java2 Standard Edition package, in file guide/extensions/versioning.html.

Field Summary
final public static Compatibility	COMPATIBLE Enum indicating that extension is compatible with other extension.
final public static Attributes.Name	EXTENSION_LIST Manifest Attribute Name object for EXTENSION_LIST.
final public static Attributes.Name	EXTENSION_NAME Manifest Attribute Name object for EXTENSION_NAME.
final public static Attributes.Name	IMPLEMENTATION_URL Manifest Attribute Name object for IMPLEMENTATION_URL.
final public static Attributes.Name	IMPLEMENTATION_VENDOR Manifest Attribute Name object for IMPLEMENTATION_VENDOR.
final public static Attributes.Name	IMPLEMENTATION_VENDOR_ID Manifest Attribute Name object for IMPLEMENTATION_VENDOR_ID.
final public static Attributes.Name	IMPLEMENTATION_VERSION Manifest Attribute Name object for IMPLEMENTATION_VERSION.
final public static Compatibility	INCOMPATIBLE Enum indicating that extension is incompatible with other extension in ways other than other enums indicate).
final public static Attributes.Name	OPTIONAL_EXTENSION_LIST `Name` object for `Optional-Extension-List` manifest attribute used for declaring optional dependencies on installed extensions.
final public static Compatibility	REQUIRE_IMPLEMENTATION_UPGRADE Enum indicating that extension requires an upgrade of implementation to be compatible with other extension.
final public static Compatibility	REQUIRE_SPECIFICATION_UPGRADE Enum indicating that extension requires an upgrade of specification to be compatible with other extension.
final public static Compatibility	REQUIRE_VENDOR_SWITCH Enum indicating that extension requires a vendor switch to be compatible with other extension.
final public static Attributes.Name	SPECIFICATION_VENDOR Manifest Attribute Name object for SPECIFICATION_VENDOR.
final public static Attributes.Name	SPECIFICATION_VERSION Manifest Attribute Name object for SPECIFICATION_VERSION.

Constructor Summary
public	Extension(String extensionName, String specificationVersion, String specificationVendor, String implementationVersion, String implementationVendor, String implementationVendorId, String implementationURL) The constructor to create Extension object.

Method Summary
public static void	addExtension(Extension extension, Attributes attributes) Add Extension to the specified manifest Attributes.
public static void	addExtension(Extension extension, String prefix, Attributes attributes) Add Extension to the specified manifest Attributes.
public static Extension[]	getAvailable(Manifest manifest) Return an array of `Extension` objects representing optional packages that are available in the JAR file associated with the specified `Manifest`.
public Compatibility	getCompatibilityWith(Extension required) Return a Compatibility enum indicating the relationship of this `Extension` with the specified `Extension`.
public String	getExtensionName() Get the name of the extension.
public String	getImplementationURL() Get the url of the extensions implementation.
public String	getImplementationVendor() Get the vendor of the extensions implementation.
public String	getImplementationVendorID() Get the vendorID of the extensions implementation.
public DeweyDecimal	getImplementationVersion() Get the version of the extensions implementation.
public static Extension[]	getOptions(Manifest manifest) Return the set of `Extension` objects representing "Optional Packages" that the application declares they will use if present.
public static Extension[]	getRequired(Manifest manifest) Return the set of `Extension` objects representing optional packages that are required by the application contained in the JAR file associated with the specified `Manifest`.
public String	getSpecificationVendor() Get the vendor of the extensions specification.
public DeweyDecimal	getSpecificationVersion() Get the version of the extensions specification.
public boolean	isCompatibleWith(Extension required) Return `true` if the specified `Extension` (which represents an optional package required by an application) is satisfied by this `Extension` (which represents an optional package that is already installed.
public String	toString() Return a String representation of this object.

Field Detail

COMPATIBLE
final public static Compatibility COMPATIBLE(Code)
	Enum indicating that extension is compatible with other extension.

EXTENSION_LIST
final public static Attributes.Name EXTENSION_LIST(Code)
	Manifest Attribute Name object for EXTENSION_LIST.

EXTENSION_NAME
final public static Attributes.Name EXTENSION_NAME(Code)
	Manifest Attribute Name object for EXTENSION_NAME.

IMPLEMENTATION_URL
final public static Attributes.Name IMPLEMENTATION_URL(Code)
	Manifest Attribute Name object for IMPLEMENTATION_URL.

IMPLEMENTATION_VENDOR
final public static Attributes.Name IMPLEMENTATION_VENDOR(Code)
	Manifest Attribute Name object for IMPLEMENTATION_VENDOR.

IMPLEMENTATION_VENDOR_ID
final public static Attributes.Name IMPLEMENTATION_VENDOR_ID(Code)
	Manifest Attribute Name object for IMPLEMENTATION_VENDOR_ID.

IMPLEMENTATION_VERSION
final public static Attributes.Name IMPLEMENTATION_VERSION(Code)
	Manifest Attribute Name object for IMPLEMENTATION_VERSION.

INCOMPATIBLE
final public static Compatibility INCOMPATIBLE(Code)
	Enum indicating that extension is incompatible with other extension in ways other than other enums indicate). For example the other extension may have a different ID.

OPTIONAL_EXTENSION_LIST
final public static Attributes.Name OPTIONAL_EXTENSION_LIST(Code)
	`Name` object for `Optional-Extension-List` manifest attribute used for declaring optional dependencies on installed extensions. Note that the dependencies declared by this method are not required for the library to operate but if present will be used. It is NOT part of the official "Optional Package" specification. See Also: * Installed extension dependency

REQUIRE_IMPLEMENTATION_UPGRADE
final public static Compatibility REQUIRE_IMPLEMENTATION_UPGRADE(Code)
	Enum indicating that extension requires an upgrade of implementation to be compatible with other extension.

REQUIRE_SPECIFICATION_UPGRADE
final public static Compatibility REQUIRE_SPECIFICATION_UPGRADE(Code)
	Enum indicating that extension requires an upgrade of specification to be compatible with other extension.

REQUIRE_VENDOR_SWITCH
final public static Compatibility REQUIRE_VENDOR_SWITCH(Code)
	Enum indicating that extension requires a vendor switch to be compatible with other extension.

SPECIFICATION_VENDOR
final public static Attributes.Name SPECIFICATION_VENDOR(Code)
	Manifest Attribute Name object for SPECIFICATION_VENDOR.

SPECIFICATION_VERSION
final public static Attributes.Name SPECIFICATION_VERSION(Code)
	Manifest Attribute Name object for SPECIFICATION_VERSION.

Constructor Detail

Extension
public Extension(String extensionName, String specificationVersion, String specificationVendor, String implementationVersion, String implementationVendor, String implementationVendorId, String implementationURL)(Code)
	The constructor to create Extension object. Note that every component is allowed to be specified but only the extensionName is mandatory. Parameters: extensionName - the name of extension. Parameters: specificationVersion - the specification Version of extension. Parameters: specificationVendor - the specification Vendor of extension. Parameters: implementationVersion - the implementation Version of extension. Parameters: implementationVendor - the implementation Vendor of extension. Parameters: implementationVendorId - the implementation VendorId of extension. Parameters: implementationURL - the implementation URL of extension.

Method Detail

addExtension
public static void addExtension(Extension extension, Attributes attributes)(Code)
	Add Extension to the specified manifest Attributes. Parameters: attributes - the attributes of manifest to add to Parameters: extension - the extension

addExtension
public static void addExtension(Extension extension, String prefix, Attributes attributes)(Code)
	Add Extension to the specified manifest Attributes. Use the specified prefix so that dependencies can added with a prefix such as "java3d-" etc. Parameters: attributes - the attributes of manifest to add to Parameters: extension - the extension Parameters: prefix - the name to prefix to extension

getAvailable
public static Extension[] getAvailable(Manifest manifest)(Code)
	Return an array of `Extension` objects representing optional packages that are available in the JAR file associated with the specified `Manifest`. If there are no such optional packages, a zero-length array is returned. Parameters: manifest - Manifest to be parsed the "available" extensions in specified manifest

getCompatibilityWith
public Compatibility getCompatibilityWith(Extension required)(Code)
	Return a Compatibility enum indicating the relationship of this `Extension` with the specified `Extension`. Parameters: required - Description of the required optional package the enum indicating the compatibility (or lack thereof)of specifed extension

getExtensionName
public String getExtensionName()(Code)
	Get the name of the extension. the name of the extension

getImplementationURL
public String getImplementationURL()(Code)
	Get the url of the extensions implementation. the url of the extensions implementation.

getImplementationVendor
public String getImplementationVendor()(Code)
	Get the vendor of the extensions implementation. the vendor of the extensions implementation.

getImplementationVendorID
public String getImplementationVendorID()(Code)
	Get the vendorID of the extensions implementation. the vendorID of the extensions implementation.

getImplementationVersion
public DeweyDecimal getImplementationVersion()(Code)
	Get the version of the extensions implementation. the version of the extensions implementation.

getOptions
public static Extension[] getOptions(Manifest manifest)(Code)
	Return the set of `Extension` objects representing "Optional Packages" that the application declares they will use if present. If there are no such optional packages, a zero-length list is returned. Parameters: manifest - Manifest to be parsed the optional dependencies that are specified in manifest

getRequired
public static Extension[] getRequired(Manifest manifest)(Code)
	Return the set of `Extension` objects representing optional packages that are required by the application contained in the JAR file associated with the specified `Manifest`. If there are no such optional packages, a zero-length list is returned. Parameters: manifest - Manifest to be parsed the dependencies that are specified in manifes

getSpecificationVendor
public String getSpecificationVendor()(Code)
	Get the vendor of the extensions specification. the vendor of the extensions specification.

getSpecificationVersion
public DeweyDecimal getSpecificationVersion()(Code)
	Get the version of the extensions specification. the version of the extensions specification.

isCompatibleWith
public boolean isCompatibleWith(Extension required)(Code)
	Return `true` if the specified `Extension` (which represents an optional package required by an application) is satisfied by this `Extension` (which represents an optional package that is already installed. Otherwise, return `false`. Parameters: required - Description of the required optional package true if the specified extension is compatible with this extension

toString
public String toString()(Code)
	Return a String representation of this object. string representation of object.

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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