Apache Tomcat 6.0.39

org.apache.jasper.runtime
Class TagHandlerPool

java.lang.Object
  extended by org.apache.jasper.runtime.TagHandlerPool
Direct Known Subclasses:
PerThreadTagHandlerPool

public class TagHandlerPool
extends java.lang.Object

Pool of tag handlers that can be reused.

Author:
Jan Luehe

Field Summary
protected  AnnotationProcessor annotationProcessor
           
static java.lang.String OPTION_MAXSIZE
           
static java.lang.String OPTION_TAGPOOL
           
 
Constructor Summary
TagHandlerPool()
          Constructs a tag handler pool with the default capacity.
TagHandlerPool(int capacity)
          Deprecated. Use static getTagHandlerPool
 
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.
protected static java.lang.String getOption(javax.servlet.ServletConfig config, java.lang.String name, java.lang.String defaultV)
           
static TagHandlerPool getTagHandlerPool(javax.servlet.ServletConfig config)
           
protected  void init(javax.servlet.ServletConfig config)
           
 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
 

Field Detail

OPTION_TAGPOOL

public static final java.lang.String OPTION_TAGPOOL
See Also:
Constant Field Values

OPTION_MAXSIZE

public static final java.lang.String OPTION_MAXSIZE
See Also:
Constant Field Values

annotationProcessor

protected AnnotationProcessor annotationProcessor
Constructor Detail

TagHandlerPool

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


TagHandlerPool

public TagHandlerPool(int capacity)
Deprecated. Use static getTagHandlerPool

Constructs a tag handler pool with the given capacity.

Parameters:
capacity - Tag handler pool capacity
Method Detail

getTagHandlerPool

public static TagHandlerPool getTagHandlerPool(javax.servlet.ServletConfig config)

init

protected void init(javax.servlet.ServletConfig config)

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.


getOption

protected static java.lang.String getOption(javax.servlet.ServletConfig config,
                                            java.lang.String name,
                                            java.lang.String defaultV)

Apache Tomcat 6.0.39

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