com.jcorporate.expresso.ext.struts.taglib.logic
Class ExNotPresentTag

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      org.apache.struts.taglib.logic.ConditionalTagBase
          org.apache.struts.taglib.logic.PresentTag
              com.jcorporate.expresso.ext.struts.taglib.logic.ExPresentTag
                  com.jcorporate.expresso.ext.struts.taglib.logic.ExNotPresentTag

All Implemented Interfaces:

IterationTag, Serializable, Tag

public class ExNotPresentTag

extends ExPresentTag

Evalute the nested body content of this tag if the specified value is not present for this request.

Author:

Craig R. McClanahan

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.struts.taglib.logic.PresentTag

ROLE_DELIMITER

Fields inherited from class org.apache.struts.taglib.logic.ConditionalTagBase

cookie, header, messages, name, parameter, property, role, scope, user

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

ExNotPresentTag()

Method Summary

protected boolean

condition() Evaluate the condition that is being tested by this particular tag, and return true if the nested body content of this tag should be evaluated, or false if it should be skipped.

Methods inherited from class com.jcorporate.expresso.ext.struts.taglib.logic.ExPresentTag

condition

Methods inherited from class org.apache.struts.taglib.logic.ConditionalTagBase

doEndTag, doStartTag, getCookie, getHeader, getName, getParameter, getProperty, getRole, getScope, getUser, release, setCookie, setHeader, setName, setParameter, setProperty, setRole, setScope, setUser

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

doAfterBody, 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

ExNotPresentTag

public ExNotPresentTag()

Method Detail

condition

protected boolean condition()
                     throws JspException

Evaluate the condition that is being tested by this particular tag, and return true if the nested body content of this tag should be evaluated, or false if it should be skipped. This method must be implemented by concrete subclasses.

Returns:

the inverse of present condition

Throws:

JspException - if a JSP exception occurs