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Java Source Code / Java Documentation » Content Management System » apache lenya 2.0 » org.apache.cocoon.environment.http 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.cocoon.environment.http.HttpSession

HttpSession
final public class HttpSession implements Session(Code)
Provides a way to identify a user across more than one page request or visit to a Web site and to store information about that user.

Cocoon uses this interface to create a session between a client and the "cocoon server". The session persists for a specified time period, across more than one connection or page request from the user. A session usually corresponds to one user, who may visit a site many times. The server can maintain a session in many ways such as using cookies or rewriting URLs.

This interface allows Cocoon to

  • View and manipulate information about a session, such as the session identifier, creation time, and last accessed time
  • Bind objects to sessions, allowing user information to persist across multiple user connections

Session information is scoped only to the current context (Context), so information stored in one context will not be directly visible in another.
author:
   Carsten Ziegeler
version:
   CVS $Id: HttpSession.java 433543 2006-08-22 06:22:54Z crossley $



Field Summary
 javax.servlet.http.HttpSessionwrappedSession
    

Constructor Summary
public  HttpSession(javax.servlet.http.HttpSession session)
    

Method Summary
public  ObjectgetAttribute(String name)
     Returns the object bound with the specified name in this session, or null if no object is bound under the name.
public  EnumerationgetAttributeNames()
     Returns an Enumeration of String objects containing the names of all the objects bound to this session.
public  longgetCreationTime()
     Returns the time when this session was created, measured in milliseconds since midnight January 1, 1970 GMT.
public  StringgetId()
     Returns a string containing the unique identifier assigned to this session.
public  longgetLastAccessedTime()
     Returns the last time the client sent a request associated with this session, as the number of milliseconds since midnight January 1, 1970 GMT.
public  intgetMaxInactiveInterval()
     Returns the maximum time interval, in seconds, that the context container will keep this session open between client accesses.
public  voidinvalidate()
     Invalidates this session to it.
public  booleanisNew()
     Returns true if the client does not yet know about the session or if the client chooses not to join the session.
public  voidremoveAttribute(String name)
     Removes the object bound with the specified name from this session.
public  voidsetAttribute(String name, Object value)
     Binds an object to this session, using the name specified.
public  voidsetMaxInactiveInterval(int interval)
     Specifies the time, in seconds, between client requests before the contextcontainer will invalidate this session.

Field Detail
wrappedSession
javax.servlet.http.HttpSession wrappedSession(Code)




Constructor Detail
HttpSession
public HttpSession(javax.servlet.http.HttpSession session)(Code)
Construct a new session from an HttpSession




Method Detail
getAttribute
public Object getAttribute(String name)(Code)
Returns the object bound with the specified name in this session, or null if no object is bound under the name.
Parameters:
  name - a string specifying the name of the object the object with the specified name
exception:
  IllegalStateException - if this method is called on aninvalidated session



getAttributeNames
public Enumeration getAttributeNames()(Code)
Returns an Enumeration of String objects containing the names of all the objects bound to this session. an Enumeration ofString objects specifying thenames of all the objects bound tothis session
exception:
  IllegalStateException - if this method is called on aninvalidated session



getCreationTime
public long getCreationTime()(Code)
Returns the time when this session was created, measured in milliseconds since midnight January 1, 1970 GMT. a long specifyingwhen this session was created,expressed inmilliseconds since 1/1/1970 GMT
exception:
  IllegalStateException - if this method is called on aninvalidated session



getId
public String getId()(Code)
Returns a string containing the unique identifier assigned to this session. The identifier is assigned by the context container and is implementation dependent. a string specifying the identifierassigned to this session
exception:
  IllegalStateException - if this method is called on aninvalidated session



getLastAccessedTime
public long getLastAccessedTime()(Code)
Returns the last time the client sent a request associated with this session, as the number of milliseconds since midnight January 1, 1970 GMT.

Actions that your application takes, such as getting or setting a value associated with the session, do not affect the access time. a longrepresenting the last timethe client sent a request associatedwith this session, expressed inmilliseconds since 1/1/1970 GMT
exception:
  IllegalStateException - if this method is called on aninvalidated session




getMaxInactiveInterval
public int getMaxInactiveInterval()(Code)
Returns the maximum time interval, in seconds, that the context container will keep this session open between client accesses. After this interval, the context container will invalidate the session. The maximum time interval can be set with the setMaxInactiveInterval method. A negative time indicates the session should never timeout. an integer specifying the number ofseconds this session remains openbetween client requests
See Also:   HttpSession.setMaxInactiveInterval(int)



invalidate
public void invalidate()(Code)
Invalidates this session to it.
exception:
  IllegalStateException - if this method is called on analready invalidated session



isNew
public boolean isNew()(Code)
Returns true if the client does not yet know about the session or if the client chooses not to join the session. For example, if the server used only cookie-based sessions, and the client had disabled the use of cookies, then a session would be new on each request. true if theserver has created a session,but the client has not yet joined
exception:
  IllegalStateException - if this method is called on analready invalidated session



removeAttribute
public void removeAttribute(String name)(Code)
Removes the object bound with the specified name from this session. If the session does not have an object bound with the specified name, this method does nothing.
Parameters:
  name - the name of the object toremove from this session
exception:
  IllegalStateException - if this method is called on aninvalidated session



setAttribute
public void setAttribute(String name, Object value)(Code)
Binds an object to this session, using the name specified. If an object of the same name is already bound to the session, the object is replaced.
Parameters:
  name - the name to which the object is bound;cannot be null
Parameters:
  value - the object to be bound; cannot be null
exception:
  IllegalStateException - if this method is called on aninvalidated session



setMaxInactiveInterval
public void setMaxInactiveInterval(int interval)(Code)
Specifies the time, in seconds, between client requests before the contextcontainer will invalidate this session. A negative time indicates the session should never timeout.
Parameters:
  interval - An integer specifying the numberof seconds



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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