Class WhenTagSupport

  • All Implemented Interfaces:
    java.io.Serializable, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.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:

    • overrides ConditionalTagSupport.doStartTag() to implement the appropriate semantics of subtags of <choose>
    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

      Constructors 
      Constructor Description
      WhenTagSupport()  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int doStartTag()
      Includes its body if condition() evaluates to true.
      • 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 javax.servlet.jsp.JspException
        Description copied from class: ConditionalTagSupport
        Includes its body if condition() evaluates to true.
        Specified by:
        doStartTag in interface javax.servlet.jsp.tagext.Tag
        Overrides:
        doStartTag in class ConditionalTagSupport
        Throws:
        javax.servlet.jsp.JspException