com.taggercat.tags
Class TCIfThenElseTag

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      com.taggercat.tags.AbstractExpEvalTag
          com.taggercat.tags.TCIfTag
              com.taggercat.tags.TCIfThenElseTag

All Implemented Interfaces:

com.taggercat.el.ELPropertyResolver, java.io.Serializable, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.Tag

public class TCIfThenElseTag
extends TCIfTag

This tag evaluates an expression and includes the body of the tag regardless of expression evaluating to true or false. Unlike the TCIfTag, this tag is used only as a parent to the TCThen and TCElse tags. If a var and scope attribute are set, then the result is also added as an attribute to that scope object. The scope variable is set even if the expression evaluates to false.

Tag Attributes

1. test the expression to be evaluated
2. var (optional) the variable name
3. scope (optional) the scope to place the results on

The scope can be one of:

 page - default if not specified
 session
 request
 application
 

Example:

 <tc:ifThenElse test="100 GT 5" >

 <tc:then>

   <BR><B>Hello Then Contents!</B>

 </tc:then >

 <tc:else>

   <BR><B>Hello Else Contents!</B>

 </tc:else >

 </tc:ifThenElse >

See Also:

Serialized Form

Field Summary

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

TCIfThenElseTag()

Method Summary

int	doStartTag() Process the start tag for this instance.

Methods inherited from class com.taggercat.tags.TCIfTag

doEndTag, isConditionTrue, setFormat, setTest

Methods inherited from class com.taggercat.tags.AbstractExpEvalTag

getModel, resolveProperty, setScope, setValue, setVar

Methods inherited from class javax.servlet.jsp.tagext.TagSupport

doAfterBody, findAncestorWithClass, getId, getParent, getValue, getValues, release, removeValue, setId, setPageContext, setParent, setValue

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TCIfThenElseTag

public TCIfThenElseTag()

Method Detail

doStartTag

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

Process the start tag for this instance. The doStartTag() method assumes that all setter methods have been invoked before. When this method is invoked, the body has not yet been invoked.

Specified by:

doStartTag in interface javax.servlet.jsp.tagext.Tag

Overrides:

doStartTag in class TCIfTag

Throws:

javax.servlet.jsp.JspTagException

javax.servlet.jsp.JspException

Returns:

EVAL_BODY_INCLUDE if the tag wants to process body, and SKIP_BODY if it does not want to process it.