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	/*
	* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
	*/
	/*
	* 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.objects;

	/**
	* This class represents an XPath boolean object, and is capable of
	* converting the boolean to other types, such as a string.
	* @xsl.usage advanced
	*/
	public class XBoolean extends XObject
	{
	static final long serialVersionUID = -2964933058866100881L;

	/**
	* A true boolean object so we don't have to keep creating them.
	* @xsl.usage internal
	*/
	public static final XBoolean S_TRUE = new XBooleanStatic(true);

	/**
	* A true boolean object so we don't have to keep creating them.
	* @xsl.usage internal
	*/
	public static final XBoolean S_FALSE = new XBooleanStatic(false);

	/** Value of the object.
	* @serial */
	private final boolean m_val;

	/**
	* Construct a XBoolean object.
	*
	* @param b Value of the boolean object
	*/
	public XBoolean(boolean b)
	{

	super();

	m_val = b;
	}

	/**
	* Construct a XBoolean object.
	*
	* @param b Value of the boolean object
	*/
	public XBoolean(Boolean b)
	{

	super();

	m_val = b.booleanValue();
	setObject(b);
	}


	/**
	* Tell that this is a CLASS_BOOLEAN.
	*
	* @return type of CLASS_BOOLEAN
	*/
	public int getType()
	{
	return CLASS_BOOLEAN;
	}

	/**
	* Given a request type, return the equivalent string.
	* For diagnostic purposes.
	*
	* @return type string "#BOOLEAN"
	*/
	public String getTypeString()
	{
	return "#BOOLEAN";
	}

	/**
	* Cast result object to a number.
	*
	* @return numeric value of the object value
	*/
	public double num()
	{
	return m_val ? 1.0 : 0.0;
	}

	/**
	* Cast result object to a boolean.
	*
	* @return The object value as a boolean
	*/
	public boolean bool()
	{
	return m_val;
	}

	/**
	* Cast result object to a string.
	*
	* @return The object's value as a string
	*/
	public String str()
	{
	return m_val ? "true" : "false";
	}

	/**
	* Return a java object that's closest to the representation
	* that should be handed to an extension.
	*
	* @return The object's value as a java object
	*/
	public Object object()
	{
	if(null == m_obj)
	setObject(m_val);
	return m_obj;
	}

	/**
	* Tell if two objects are functionally equal.
	*
	* @param obj2 Object to compare to this
	*
	* @return True if the two objects are equal
	*
	* @throws javax.xml.transform.TransformerException
	*/
	public boolean equals(XObject obj2)
	{

	// In order to handle the 'all' semantics of
	// nodeset comparisons, we always call the
	// nodeset function.
	if (obj2.getType() == XObject.CLASS_NODESET)
	return obj2.equals(this);

	try
	{
	return m_val == obj2.bool();
	}
	catch(javax.xml.transform.TransformerException te)
	{
	throw new com.sun.org.apache.xml.internal.utils.WrappedRuntimeException(te);
	}
	}

	}

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