| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * 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 com.sun.org.apache.xpath.internal.operations; |
| |
| import com.sun.org.apache.xpath.internal.XPathContext; |
| import com.sun.org.apache.xpath.internal.objects.XBoolean; |
| import com.sun.org.apache.xpath.internal.objects.XObject; |
| |
| /** |
| * The '=' operation expression executer. |
| */ |
| public class Equals extends Operation |
| { |
| static final long serialVersionUID = -2658315633903426134L; |
| |
| /** |
| * Apply the operation to two operands, and return the result. |
| * |
| * |
| * @param left non-null reference to the evaluated left operand. |
| * @param right non-null reference to the evaluated right operand. |
| * |
| * @return non-null reference to the XObject that represents the result of the operation. |
| * |
| * @throws javax.xml.transform.TransformerException |
| */ |
| public XObject operate(XObject left, XObject right) |
| throws javax.xml.transform.TransformerException |
| { |
| return left.equals(right) ? XBoolean.S_TRUE : XBoolean.S_FALSE; |
| } |
| |
| /** |
| * Execute a binary operation by calling execute on each of the operands, |
| * and then calling the operate method on the derived class. |
| * |
| * |
| * @param xctxt The runtime execution context. |
| * |
| * @return The XObject result of the operation. |
| * |
| * @throws javax.xml.transform.TransformerException |
| */ |
| public boolean bool(XPathContext xctxt) |
| throws javax.xml.transform.TransformerException |
| { |
| XObject left = m_left.execute(xctxt, true); |
| XObject right = m_right.execute(xctxt, true); |
| |
| boolean result = left.equals(right) ? true : false; |
| left.detach(); |
| right.detach(); |
| return result; |
| } |
| |
| } |