- /*
- * Copyright 2002-2004 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.jxpath.ri.compiler;
-
- import org.apache.commons.jxpath.ri.EvalContext;
-
- /**
- * Implementation of Expression for the operation "!=".
- *
- * @author Dmitri Plotnikov
- * @version $Revision: 1.3 $ $Date: 2004/02/29 14:17:38 $
- */
- public class CoreOperationNotEqual extends CoreOperationCompare {
-
- public CoreOperationNotEqual(Expression arg1, Expression arg2) {
- super(arg1, arg2);
- }
-
- public Object computeValue(EvalContext context) {
- return equal(context, args[0], args[1]) ? Boolean.FALSE : Boolean.TRUE;
- }
-
- protected int getPrecedence() {
- return 2;
- }
-
- protected boolean isSymmetric() {
- return true;
- }
-
- public String getSymbol() {
- return "!=";
- }
- }