org.apache.struts.taglib.logic

Class EmptyTag

Known Direct Subclasses:
NestedEmptyTag, NotEmptyTag

public class EmptyTag
extends ConditionalTagBase

Evalute the nested body content of this tag if the specified value is empty for this request.
Version:
$Rev: 54929 $ $Date: 2004-10-16 17:38:42 +0100 (Sat, 16 Oct 2004) $
Since:
Struts 1.1

Field Summary

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

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

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.
protected boolean
condition(boolean desired)
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 org.apache.struts.taglib.logic.ConditionalTagBase

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

Method Details

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.
Overrides:
condition in interface ConditionalTagBase

condition

protected boolean condition(boolean desired)
            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.
Parameters:
desired - Desired outcome for a true result

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