| /* |
| * 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 'boolean()' operation expression executer. |
| */ |
| public class Bool extends UnaryOperation |
| { |
| static final long serialVersionUID = 44705375321914635L; |
| |
| /** |
| * Apply the operation to two operands, and return the result. |
| * |
| * |
| * @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 right) throws javax.xml.transform.TransformerException |
| { |
| |
| if (XObject.CLASS_BOOLEAN == right.getType()) |
| return right; |
| else |
| return right.bool() ? XBoolean.S_TRUE : XBoolean.S_FALSE; |
| } |
| |
| /** |
| * 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_right.bool(xctxt); |
| } |
| |
| } |