nextapp.echo.webcontainer.util
Class IdTable

java.lang.Object
  nextapp.echo.webcontainer.util.IdTable

All Implemented Interfaces:

java.io.Serializable

public class IdTable
extends java.lang.Object
implements java.io.Serializable

A table which provides an identifier-to-object mapping, with the objects being weakly referenced (i.e., the fact that they are held within this table will not prevent them from being garbage collected). When deserialized by Java serialization API, the references will be hard until purge() is invoked for the first time.

See Also:

Serialized Form

Constructor Summary

IdTable()

Method Summary

java.lang.Object	getObject(java.lang.String id) Retrieves the object associated with the specified identifier.
void	register(nextapp.echo.app.RenderIdSupport object) Registers an object with the IdTable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IdTable

public IdTable()

Method Detail

register

public void register(nextapp.echo.app.RenderIdSupport object)

Registers an object with the IdTable

Parameters:

object - the object to identify

getObject

public java.lang.Object getObject(java.lang.String id)

Retrieves the object associated with the specified identifier.

Parameters:

id - the identifier

Returns:

the object (or null, if the object is not in the queue, perhaps due to having been dereferenced and garbage collected)