/*
 * 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: Bool.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 'boolean()' operation expression executer.
/** * 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.
Params:
  • right – non-null reference to the evaluated right operand.
Throws:
Returns:non-null reference to the XObject that represents the result of the operation.
/** * 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.
Params:
  • xctxt – The runtime execution context.
Throws:
Returns:The result of the operation as a boolean.
/** * 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); } }