org.apache.taglibs.standard.lang.jstl.BooleanLiteral Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.taglibs.standard.lang.jstl;
/**
* An expression representing a boolean literal value
*
* @author Nathan Abramson - Art Technology Group
*/
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";
}
//-------------------------------------
}