- /*
- * 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.jexl.parser;
-
- import org.apache.commons.jexl.JexlContext;
- import org.apache.commons.jexl.util.Coercion;
-
- /**
- * != or ne
- *
- * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
- * @version $Id: ASTNENode.java,v 1.7 2004/08/22 01:53:27 dion Exp $
- */
- public class ASTNENode extends SimpleNode
- {
- public ASTNENode(int id)
- {
- super(id);
- }
-
- public ASTNENode(Parser p, int id)
- {
- super(p, id);
- }
-
-
- /** Accept the visitor. **/
- public Object jjtAccept(ParserVisitor visitor, Object data)
- {
- return visitor.visit(this, data);
- }
-
- 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 cleal L != R
- */
- return Boolean.TRUE;
- }
- else if (left.getClass().equals(right.getClass()))
- {
- return (!left.equals(right)) ? Boolean.TRUE : Boolean.FALSE;
- }
- else if(left instanceof Float || left instanceof Double ||
- right instanceof Float || right instanceof Double)
- {
- return (!Coercion.coerceDouble(left).equals(Coercion.coerceDouble(right)))
- ? Boolean.TRUE : Boolean.FALSE;
- }
- else if ( left instanceof Number || right instanceof Number ||
- left instanceof Character || right instanceof Character)
- {
- return (!Coercion.coerceLong(left).equals(Coercion.coerceLong(right)))
- ? Boolean.TRUE : Boolean.FALSE;
- }
- else if (left instanceof Boolean || right instanceof Boolean)
- {
- return (!Coercion.coerceBoolean(left).equals(Coercion.coerceBoolean(right)))
- ? Boolean.TRUE : Boolean.FALSE;
- }
- else if (left instanceof java.lang.String || right instanceof String)
- {
- return (!left.toString().equals(right.toString())) ? Boolean.TRUE : Boolean.FALSE;
- }
-
- return (!left.equals(right)) ? Boolean.TRUE : Boolean.FALSE;
- }
- }