Package org.apache.jasper.runtime
Class TagHandlerPool
java.lang.Object
org.apache.jasper.runtime.TagHandlerPool
- Direct Known Subclasses:
PerThreadTagHandlerPool
Pool of tag handlers that can be reused.
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate int
private javax.servlet.jsp.tagext.JspTag[]
static final String
static final String
private ResourceInjector
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Constructor Summary
ConstructorsConstructorDescriptionConstructs a tag handler pool with the default capacity.TagHandlerPool
(int capacity) Deprecated.Use static getTagHandlerPool -
Method Summary
Modifier and TypeMethodDescription<T extends javax.servlet.jsp.tagext.JspTag>
javax.servlet.jsp.tagext.JspTagGets the next available tag handler from this tag handler pool, instantiating one if this tag handler pool is empty.protected static String
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.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.
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Field Details
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OPTION_TAGPOOL
- See Also:
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OPTION_MAXSIZE
- See Also:
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handlers
private javax.servlet.jsp.tagext.JspTag[] handlers -
resourceInjector
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current
private int current
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Constructor Details
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TagHandlerPool
public TagHandlerPool()Constructs a tag handler pool with the default capacity. -
TagHandlerPool
public TagHandlerPool(int capacity) Deprecated.Use static getTagHandlerPoolConstructs a tag handler pool with the given capacity.- Parameters:
capacity
- Tag handler pool capacity
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Method Details
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getTagHandlerPool
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init
protected void init(javax.servlet.ServletConfig config) -
get
public <T extends javax.servlet.jsp.tagext.JspTag> javax.servlet.jsp.tagext.JspTag get(Class<T> 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
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reuse
public void reuse(javax.servlet.jsp.tagext.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.- Parameters:
handler
- JspTag handler to add to this tag handler pool
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release
public void release()Calls the release() method of all available tag handlers in this tag handler pool. -
getOption
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