org.apache.taglibs.standard.tag.common.core
Class ChooseTag
java.lang.Object
javax.servlet.jsp.tagext.TagSupport
org.apache.taglibs.standard.tag.common.core.ChooseTag
- All Implemented Interfaces:
- Serializable, IterationTag, JspTag, Tag
public class ChooseTag
- extends TagSupport
Tag handler for <choose> in JSTL.
<choose> is a very simple tag that acts primarily as a container;
it always includes its body and allows exactly one of its child
<when> tags to run. Since this tag handler doesn't have any
attributes, it is common.core to both the rtexprvalue and expression-
evaluating versions of the JSTL library.
- Author:
- Shawn Bayern
- See Also:
- Serialized Form
Method Summary |
int |
doStartTag()
Default processing of the start tag, returning SKIP_BODY. |
boolean |
gainPermission()
Returns status indicating whether a subtag should run or not. |
void |
release()
Release state. |
void |
subtagSucceeded()
Called by a subtag to indicate that it plans to evaluate its
body. |
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 |
ChooseTag
public ChooseTag()
release
public void release()
- Description copied from class:
TagSupport
- Release state.
- Specified by:
release
in interface Tag
- Overrides:
release
in class TagSupport
- See Also:
Tag.release()
gainPermission
public boolean gainPermission()
- Returns status indicating whether a subtag should run or not.
- Returns:
- true if the subtag should evaluate its condition
and decide whether to run, false otherwise.
subtagSucceeded
public void subtagSucceeded()
- Called by a subtag to indicate that it plans to evaluate its
body.
doStartTag
public int doStartTag()
throws JspException
- Description copied from class:
TagSupport
- Default processing of the start tag, returning SKIP_BODY.
- Specified by:
doStartTag
in interface Tag
- Overrides:
doStartTag
in class TagSupport
- 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.