org.apache.commons.jexl.parser.ASTNENode 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.commons.jexl.parser;
import org.apache.commons.jexl.JexlContext;
import org.apache.commons.jexl.util.Coercion;
/**
* Not equal to. Use '!=' or 'ne', do not use <>.
*
* @author Geir Magnusson Jr.
* @version $Id: ASTNENode.java 480412 2006-11-29 05:11:23Z bayard $
*/
public class ASTNENode extends SimpleNode {
/**
* Create the node given an id.
*
* @param id node id.
*/
public ASTNENode(int id) {
super(id);
}
/**
* Create a node with the given parser and id.
*
* @param p a parser.
* @param id node id.
*/
public ASTNENode(Parser p, int id) {
super(p, id);
}
/** {@inheritDoc} */
public Object jjtAccept(ParserVisitor visitor, Object data) {
return visitor.visit(this, data);
}
/** {@inheritDoc} */
public Object value(JexlContext pc) throws Exception {
Object left = ((SimpleNode) jjtGetChild(0)).value(pc);
Object right = ((SimpleNode) jjtGetChild(1)).value(pc);
if (left == null && right == null) {
/*
* first, the possibility that both *are* null
*/
return Boolean.FALSE;
} else if (left == null || right == null) {
/*
* otherwise, both aren't, so it's clear L != R
*/
return Boolean.TRUE;
} else if (left.getClass().equals(right.getClass())) {
return (left.equals(right)) ? Boolean.FALSE : Boolean.TRUE;
} else if (left instanceof Float
|| left instanceof Double
|| right instanceof Float
|| right instanceof Double) {
return (Coercion.coerceDouble(left).equals(Coercion.coerceDouble(right))) ? Boolean.FALSE : Boolean.TRUE;
} else if (left instanceof Number || right instanceof Number || left instanceof Character
|| right instanceof Character) {
return (Coercion.coerceLong(left).equals(Coercion.coerceLong(right))) ? Boolean.FALSE : Boolean.TRUE;
} else if (left instanceof Boolean || right instanceof Boolean) {
return (Coercion.coerceBoolean(left).equals(Coercion.coerceBoolean(right))) ? Boolean.FALSE : Boolean.TRUE;
} else if (left instanceof java.lang.String || right instanceof String) {
return (left.toString().equals(right.toString())) ? Boolean.FALSE : Boolean.TRUE;
}
return (left.equals(right)) ? Boolean.FALSE : Boolean.TRUE;
}
}