| /* |
| * 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. |
| */ |
| /* |
| * $Id: Or.java 468655 2006-10-28 07:12:06Z minchau $ |
| */ |
| package org.apache.xpath.operations; |
| |
| import org.apache.xpath.XPathContext; |
| import org.apache.xpath.objects.XBoolean; |
| import org.apache.xpath.objects.XObject; |
| |
| /** |
| * The 'or' operation expression executer. |
| */ |
| public class Or extends Operation |
| { |
| static final long serialVersionUID = -644107191353853079L; |
| |
| /** |
| * OR two expressions and return the boolean result. Override |
| * superclass method for optimization purposes. |
| * |
| * @param xctxt The runtime execution context. |
| * |
| * @return {@link org.apache.xpath.objects.XBoolean#S_TRUE} or |
| * {@link org.apache.xpath.objects.XBoolean#S_FALSE}. |
| * |
| * @throws javax.xml.transform.TransformerException |
| */ |
| public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException |
| { |
| |
| XObject expr1 = m_left.execute(xctxt); |
| |
| if (!expr1.bool()) |
| { |
| XObject expr2 = m_right.execute(xctxt); |
| |
| return expr2.bool() ? XBoolean.S_TRUE : XBoolean.S_FALSE; |
| } |
| else |
| return XBoolean.S_TRUE; |
| } |
| |
| /** |
| * Evaluate this operation directly to a boolean. |
| * |
| * @param xctxt The runtime execution context. |
| * |
| * @return The result of the operation as a boolean. |
| * |
| * @throws javax.xml.transform.TransformerException |
| */ |
| public boolean bool(XPathContext xctxt) |
| throws javax.xml.transform.TransformerException |
| { |
| return (m_left.bool(xctxt) || m_right.bool(xctxt)); |
| } |
| |
| } |