org.apache.jasper.runtime
类 TagHandlerPool

java.lang.Object
  org.apache.jasper.runtime.TagHandlerPool

直接已知子类：

PerThreadTagHandlerPool

public class TagHandlerPool
extends Object

Pool of tag handlers that can be reused.

作者：

Jan Luehe

字段摘要

static String	OPTION_MAXSIZE
static String	OPTION_TAGPOOL

构造方法摘要

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

TagHandlerPool(int capacity)
已过时。 Use static getTagHandlerPool

方法摘要

<T extends JspTag> JspTag	get(Class<T> handlerClass) Gets the next available tag handler from this tag handler pool, instantiating one if this tag handler pool is empty.
protected static String	getOption(ServletConfig config, String name, String defaultV)
static TagHandlerPool	getTagHandlerPool(ServletConfig config)
protected void	init(ServletConfig config)
void	release() Calls the release() method of all available tag handlers in this tag handler pool.
void	reuse(JspTag 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.

从类 java.lang.Object 继承的方法

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

字段详细信息

OPTION_TAGPOOL

public static final String OPTION_TAGPOOL

另请参见：

常量字段值

OPTION_MAXSIZE

public static final String OPTION_MAXSIZE

另请参见：

常量字段值

构造方法详细信息

TagHandlerPool

public TagHandlerPool()

Constructs a tag handler pool with the default capacity.

TagHandlerPool

public TagHandlerPool(int capacity)

已过时。 Use static getTagHandlerPool

Constructs a tag handler pool with the given capacity.

参数：

capacity - Tag handler pool capacity

方法详细信息

getTagHandlerPool

public static TagHandlerPool getTagHandlerPool(ServletConfig config)

init

protected void init(ServletConfig config)

get

public <T extends JspTag> JspTag get(Class<T> handlerClass)
           throws JspException

Gets the next available tag handler from this tag handler pool, instantiating one if this tag handler pool is empty.

参数：

handlerClass - Tag handler class

返回：

Reused or newly instantiated tag handler

抛出：

JspException - if a tag handler cannot be instantiated

reuse

public void reuse(JspTag 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.

参数：

handler - JspTag 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 String getOption(ServletConfig config,
                                  String name,
                                  String defaultV)