Class PerThreadTagHandlerPool

java.lang.Object

org.apache.jasper.runtime.TagHandlerPool

org.apache.jasper.runtime.PerThreadTagHandlerPool

public class PerThreadTagHandlerPool
extends TagHandlerPool

Thread-local based pool of tag handlers that can be reused.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	PerThreadTagHandlerPool.PerThreadData

Field Summary

Fields

Modifier and Type	Field	Description
private int	maxSize
private ThreadLocal<PerThreadTagHandlerPool.PerThreadData>	perThread
private Vector<PerThreadTagHandlerPool.PerThreadData>	perThreadDataVector

Fields inherited from class TagHandlerPool

OPTION_MAXSIZE, OPTION_TAGPOOL

Constructor Summary

Constructors

Constructor	Description
PerThreadTagHandlerPool()	Constructs a tag handler pool with the default capacity.

Method Summary

Modifier and Type	Method	Description
javax.servlet.jsp.tagext.Tag	get(Class handlerClass)	Gets the next available tag handler from this tag handler pool, instantiating one if this tag handler pool is empty.
protected void	init(javax.servlet.ServletConfig config)
void	release()	Calls the release() method of all 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 TagHandlerPool

getOption, getTagHandlerPool, reuse

Methods inherited from class Object

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

Field Details

maxSize

private int maxSize

perThreadDataVector

private Vector<PerThreadTagHandlerPool.PerThreadData> perThreadDataVector

perThread

private ThreadLocal<PerThreadTagHandlerPool.PerThreadData> perThread

Constructor Details

PerThreadTagHandlerPool

public PerThreadTagHandlerPool()

Constructs a tag handler pool with the default capacity.

Method Details

init

protected void init(javax.servlet.ServletConfig config)

Overrides:

init in class TagHandlerPool

get

public javax.servlet.jsp.tagext.Tag get(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.

Overrides:

get in class TagHandlerPool

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 tag handlers in this tag handler pool.

Overrides:

release in class TagHandlerPool