com.sun.faces.taglib.jsf_core
Class ValueChangeListenerTag

java.lang.Object
  extended by javax.servlet.jsp.tagext.TagSupport
      extended by com.sun.faces.taglib.jsf_core.ValueChangeListenerTag
All Implemented Interfaces:
java.io.Serializable, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.Tag

public class ValueChangeListenerTag
extends javax.servlet.jsp.tagext.TagSupport

Tag implementation that creates a ValueChangeListener instance and registers it on the UIComponent associated with our most immediate surrounding instance of a tag whose implementation class is a subclass of UIComponentClassicTagBase. This tag creates no output to the page currently being created.

This class may be used directly to implement a generic event handler registration tag (based on the fully qualified Java class name specified by the type attribute), or as a base class for tag instances that support specific ValueChangeListener subclasses.

Subclasses of this class must implement the createValueChangeListener() method, which creates and returns a ValueChangeListener instance. Any configuration properties that are required by this ValueChangeListener instance must have been set by the createValueChangeListener() method. Generally, this occurs by copying corresponding attribute values on the tag instance.

This tag creates no output to the page currently being created. It is used solely for the side effect of ValueChangeListener creation.

See Also:
Serialized Form

Field Summary
 
Fields inherited from class javax.servlet.jsp.tagext.TagSupport
id, pageContext
 
Fields inherited from interface javax.servlet.jsp.tagext.IterationTag
EVAL_BODY_AGAIN
 
Fields inherited from interface javax.servlet.jsp.tagext.Tag
EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE
 
Constructor Summary
ValueChangeListenerTag()
           
 
Method Summary
 int doStartTag()
          Create a new instance of the specified ValueChangeListener class, and register it with the UIComponent instance associated with our most immediately surrounding UIComponentClassicTagBase instance, if the UIComponent instance was created by this execution of the containing JSP page.
 void release()
          Release references to any acquired resources.
 void setBinding(javax.el.ValueExpression binding)
           
 void setType(javax.el.ValueExpression type)
          Set the fully qualified class name of the ValueChangeListener instance to be created.
 
Methods inherited from class javax.servlet.jsp.tagext.TagSupport
doAfterBody, doEndTag, findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ValueChangeListenerTag

public ValueChangeListenerTag()
Method Detail

setType

public void setType(javax.el.ValueExpression type)

Set the fully qualified class name of the ValueChangeListener instance to be created.

Parameters:
type - The new class name

setBinding

public void setBinding(javax.el.ValueExpression binding)

doStartTag

public int doStartTag()
               throws javax.servlet.jsp.JspException

Create a new instance of the specified ValueChangeListener class, and register it with the UIComponent instance associated with our most immediately surrounding UIComponentClassicTagBase instance, if the UIComponent instance was created by this execution of the containing JSP page.

Specified by:
doStartTag in interface javax.servlet.jsp.tagext.Tag
Overrides:
doStartTag in class javax.servlet.jsp.tagext.TagSupport
Throws:
javax.servlet.jsp.JspException - if a JSP error occurs

release

public void release()

Release references to any acquired resources.

Specified by:
release in interface javax.servlet.jsp.tagext.Tag
Overrides:
release in class javax.servlet.jsp.tagext.TagSupport


Copyright ? 2002-2006 Sun Microsystems, Inc. All Rights Reserved.