/*
 * 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 ognl;

public class ASTNotEq extends ComparisonExpression {

    private static final long serialVersionUID = -8504319639438982233L;

    public ASTNotEq(int id) {
        super(id);
    }

    public ASTNotEq(OgnlParser p, int id) {
        super(p, id);
    }

    protected Object getValueBody(OgnlContext context, Object source) throws OgnlException {
        Object v1 = children[0].getValue(context, source);
        Object v2 = children[1].getValue(context, source);

        return OgnlOps.equal(v1, v2) ? Boolean.FALSE : Boolean.TRUE;
    }

    public String getExpressionOperator(int index) {
        return "!=";
    }

    public String getComparisonFunction() {
        return "!ognl.OgnlOps.equal";
    }
}
