/*
* Copyright 2002-2006 The Apache Software Foundation.
*
* Licensed 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.commons.jexl.parser;
import org.apache.commons.jexl.JexlContext;
/**
* represents an integer.
*
* @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
* @version $Id: ASTIntegerLiteral.java 398202 2006-04-29 16:40:34Z dion $
*/
public class ASTIntegerLiteral extends SimpleNode {
/** literal value. */
protected Integer val;
/**
* Create the node given an id.
*
* @param id node id.
*/
public ASTIntegerLiteral(int id) {
super(id);
}
/**
* Create a node with the given parser and id.
*
* @param p a parser.
* @param id node id.
*/
public ASTIntegerLiteral(Parser p, int id) {
super(p, id);
}
/** {@inheritDoc} */
public Object jjtAccept(ParserVisitor visitor, Object data) {
return visitor.visit(this, data);
}
/**
* Part of reference resolution - wierd... in JSTL EL you can have foo.2
* which is equiv to foo[2] it appears...
*
* @param obj the object to evaluate against.
* @param ctx the {@link JexlContext}.
* @throws Exception on any error.
* @return the resulting value.
* @see ASTArrayAccess#evaluateExpr(Object, Object)
*/
public Object execute(Object obj, JexlContext ctx) throws Exception {
return ASTArrayAccess.evaluateExpr(obj, val);
}
/** {@inheritDoc} */
public Object value(JexlContext jc) throws Exception {
return val;
}
}
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