org.apache.jasper.runtime
Class TagHandlerPool

java.lang.Object
  extended byorg.apache.jasper.runtime.TagHandlerPool

public class TagHandlerPool
extends java.lang.Object

Pool of tag handlers that can be reused.

Author:
Jan Luehe

Constructor Summary
TagHandlerPool()
          Constructs a tag handler pool with the default capacity.
TagHandlerPool(int capacity)
          Constructs a tag handler pool with the given capacity.
 
Method Summary
 javax.servlet.jsp.tagext.Tag get(java.lang.Class handlerClass)
          Gets the next available tag handler from this tag handler pool, instantiating one if this tag handler pool is empty.
 void release()
          Calls the release() method of all available tag handlers in this tag handler pool.
 void reuse(javax.servlet.jsp.tagext.Tag handler)
          Adds the given tag handler to this tag handler pool, unless this tag handler pool has already reached its capacity, in which case the tag handler's release() method is called.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

TagHandlerPool

public TagHandlerPool()
Constructs a tag handler pool with the default capacity.


TagHandlerPool

public TagHandlerPool(int capacity)
Constructs a tag handler pool with the given capacity.

Parameters:
capacity - Tag handler pool capacity
Method Detail

get

public javax.servlet.jsp.tagext.Tag get(java.lang.Class handlerClass)
                                 throws javax.servlet.jsp.JspException
Gets the next available tag handler from this tag handler pool, instantiating one if this tag handler pool is empty.

Parameters:
handlerClass - Tag handler class
Returns:
Reused or newly instantiated tag handler
Throws:
javax.servlet.jsp.JspException - if a tag handler cannot be instantiated

reuse

public void reuse(javax.servlet.jsp.tagext.Tag handler)
Adds the given tag handler to this tag handler pool, unless this tag handler pool has already reached its capacity, in which case the tag handler's release() method is called.

Parameters:
handler - Tag handler to add to this tag handler pool

release

public void release()
Calls the release() method of all available tag handlers in this tag handler pool.



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