org.apache.taglibs.standard.lang.jstl.BooleanLiteral Maven / Gradle / Ivy
/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the "License"). You may not use this file except
* in compliance with the License.
*
* You can obtain a copy of the license at
* glassfish/bootstrap/legal/CDDLv1.0.txt or
* https://glassfish.dev.java.net/public/CDDLv1.0.html.
* See the License for the specific language governing
* permissions and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* HEADER in each file and include the License file at
* glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable,
* add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your
* own identifying information: Portions Copyright [yyyy]
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*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
*
* Portions Copyright Apache Software Foundation.
*/
package org.apache.taglibs.standard.lang.jstl;
/**
*
* An expression representing a boolean literal value
*
* @author Nathan Abramson - Art Technology Group
* @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: kchung $
**/
public class BooleanLiteral
extends Literal
{
//-------------------------------------
// Member variables
//-------------------------------------
public static final BooleanLiteral TRUE = new BooleanLiteral ("true");
public static final BooleanLiteral FALSE = new BooleanLiteral ("false");
//-------------------------------------
/**
*
* Constructor
**/
public BooleanLiteral (String pToken)
{
super (getValueFromToken (pToken));
}
//-------------------------------------
/**
*
* Parses the given token into the literal value
**/
static Object getValueFromToken (String pToken)
{
return
("true".equals (pToken)) ?
Boolean.TRUE :
Boolean.FALSE;
}
//-------------------------------------
// Expression methods
//-------------------------------------
/**
*
* Returns the expression in the expression language syntax
**/
public String getExpressionString ()
{
return (getValue () == Boolean.TRUE) ? "true" : "false";
}
//-------------------------------------
}