WhenTagSupport (Jakarta Standard Tag Library Implementation 3.0.1 API)

java.lang.Object
- jakarta.servlet.jsp.tagext.TagSupport
- - jakarta.servlet.jsp.jstl.core.ConditionalTagSupport
  - - org.apache.taglibs.standard.tag.common.core.WhenTagSupport

All Implemented Interfaces:

jakarta.servlet.jsp.tagext.IterationTag, jakarta.servlet.jsp.tagext.JspTag, jakarta.servlet.jsp.tagext.Tag, Serializable

Direct Known Subclasses:

OtherwiseTag, WhenTag, WhenTag, WhenTag
```
public abstract class WhenTagSupport
extends jakarta.servlet.jsp.jstl.core.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:
- overrides ConditionalTagSupport.doStartTag() to implement the appropriate semantics of subtags of <choose>
Author:

Shawn Bayern

See Also:

Serialized Form

- Field Summary
  - Fields inherited from class jakarta.servlet.jsp.tagext.TagSupport
    id, pageContext
  - Fields inherited from interface jakarta.servlet.jsp.tagext.IterationTag
    EVAL_BODY_AGAIN
  - Fields inherited from interface jakarta.servlet.jsp.tagext.Tag
    EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE
- Constructor Summary
  
  Constructors
  Constructor Description
  
  WhenTagSupport()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  int doStartTag()
  - Methods inherited from class jakarta.servlet.jsp.jstl.core.ConditionalTagSupport
    condition, release, setScope, setVar
  - Methods inherited from class jakarta.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 jakarta.servlet.jsp.JspException
```
    Specified by:
    
    doStartTag in interface jakarta.servlet.jsp.tagext.Tag
    
    Overrides:
    
    doStartTag in class jakarta.servlet.jsp.jstl.core.ConditionalTagSupport
    
    Throws:
    
    jakarta.servlet.jsp.JspException