/*
 * Copyright 1999-2004 The Apache Software Foundation.
 *
 * Licensed 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.
 */
// Class header file.
#include "XNodeSetResultTreeFragProxy.hpp"



#include <xalanc/XalanDOM/XalanDOMException.hpp>



#include "NodeRefListBase.hpp"
#include "XNodeSetBase.hpp"



XALAN_CPP_NAMESPACE_BEGIN



XNodeSetResultTreeFragProxy::XNodeSetResultTreeFragProxy(const XNodeSetBase&	theValue) :
	XObjectResultTreeFragProxyBase(),
	m_value(theValue)
{
}



XNodeSetResultTreeFragProxy::~XNodeSetResultTreeFragProxy()
{
}



XalanNode*
XNodeSetResultTreeFragProxy::getFirstChild() const
{
	return m_value.getLength() == 0 ? 0 : m_value.item(0);
}



XalanNode*
XNodeSetResultTreeFragProxy::getLastChild() const
{
	const XNodeSetBase::size_type	theLength = m_value.getLength();
	
	return theLength == 0 ? 0 : m_value.item(theLength - 1);
}



#if defined(XALAN_NO_COVARIANT_RETURN_TYPE)
XalanNode*
#else
XNodeSetResultTreeFragProxy*
#endif
XNodeSetResultTreeFragProxy::cloneNode(bool	/* deep */) const
{
	throw XalanDOMException(XalanDOMException::NOT_SUPPORTED_ERR);

	return 0;
}



bool
XNodeSetResultTreeFragProxy::hasChildNodes() const
{
	return m_value.getLength() > 0 ? true : false;
}



#if defined(XALAN_NO_COVARIANT_RETURN_TYPE)
XalanDocumentFragment*
#else
XNodeSetResultTreeFragProxy*
#endif
XNodeSetResultTreeFragProxy::clone(bool	/* deep */) const
{
	throw XalanDOMException(XalanDOMException::NOT_SUPPORTED_ERR);

	return 0;
}



XALAN_CPP_NAMESPACE_END