org.apache.struts.taglib
Class IfAttributeExistsTag

java.lang.Object
  |
  +--javax.servlet.jsp.tagext.TagSupport
        |
        +--org.apache.struts.taglib.BaseAttributeTag
              |
              +--org.apache.struts.taglib.IfAttributeExistsTag

All Implemented Interfaces:

javax.servlet.jsp.tagext.IterationTag, java.io.Serializable, javax.servlet.jsp.tagext.Tag

public class IfAttributeExistsTag

extends BaseAttributeTag

Conditionally include the body of this tag if the specified attribute exists in the specified scope.

Version:

$Revision: 1.2 $ $Date: 2000/08/01 20:03:33 $

Author:

Arun M. Thomas

See Also:

Serialized Form

Fields inherited from class org.apache.struts.taglib.BaseAttributeTag

name, scope

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

id, pageContext, parent, values

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

IfAttributeExistsTag()

Method Summary

int	doStartTag() Conditionally evaluate the body content of this tag.

Methods inherited from class org.apache.struts.taglib.BaseAttributeTag

getName, getScope, getScopeId, release, setName, setScope

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, registerNatives, toString, wait, wait, wait

Constructor Detail

IfAttributeExistsTag

public IfAttributeExistsTag()

Method Detail

doStartTag

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

Conditionally evaluate the body content of this tag.

Overrides:

doStartTag in class javax.servlet.jsp.tagext.TagSupport

Throws:

javax.servlet.jsp.JspException - if a JSP exception has occurred