org.apache.taglibs.standard.tag.common.core
Class WhenTagSupport

java.lang.Object
  extended by javax.servlet.jsp.tagext.TagSupport
      extended by javax.servlet.jsp.jstl.core.ConditionalTagSupport
          extended by org.apache.taglibs.standard.tag.common.core.WhenTagSupport
All Implemented Interfaces:
Serializable, IterationTag, JspTag, Tag
Direct Known Subclasses:
OtherwiseTag, WhenTag, WhenTag, WhenTag

public abstract class WhenTagSupport
extends ConditionalTagSupport

WhenTagSupport is an abstract class that facilitates implementation of <when>-style tags in both the rtexprvalue and expression-evaluating libraries. It also supports <otherwise>.

In particular, this base class does the following:

Author:
Shawn Bayern
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
WhenTagSupport()
           
 
Method Summary
 int doStartTag()
          Includes its body if condition() evaluates to true.
 
Methods inherited from class javax.servlet.jsp.jstl.core.ConditionalTagSupport
condition, release, setScope, setVar
 
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

WhenTagSupport

public WhenTagSupport()
Method Detail

doStartTag

public int doStartTag()
               throws JspException
Description copied from class: ConditionalTagSupport
Includes its body if condition() evaluates to true.

Specified by:
doStartTag in interface Tag
Overrides:
doStartTag in class ConditionalTagSupport
Returns:
SKIP_BODY
Throws:
JspException - if an error occurs while processing this tag
See Also:
Tag.doStartTag()


Copyright © 2008 Mort Bay Consulting. All Rights Reserved.