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 * 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
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 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
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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 'or' operation expression executer.
/**
 * 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.
Params:
xctxt – The runtime execution context.
Throws:
TransformerException – 
Returns:
XBoolean.S_TRUE or XBoolean.S_FALSE./**
   * OR two expressions and return the boolean result. Override
   * superclass method for optimization purposes.
   *
   * @param xctxt The runtime execution context.
   *
   * @return {@link com.sun.org.apache.xpath.internal.objects.XBoolean#S_TRUE} or
   * {@link com.sun.org.apache.xpath.internal.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.
Params:
xctxt – The runtime execution context.
Throws:
TransformerException – 
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_left.bool(xctxt) || m_right.bool(xctxt));
  }

}