/*
 *  Copyright 2008 Nicolas Cochard
 *  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.
 */

package rocfox.rdf2xml.utilities.xml;

import java.util.Stack;

/**
 *
 * @author Nicolas
 */
public class XmlNamespaceContextStack
{
	private Stack<XmlNamespaceContext> contexts = new Stack<XmlNamespaceContext>();

	public XmlNamespaceContextStack()
	{
		contexts.push(new XmlNamespaceContext());
	}
	
	public XmlNamespaceContext getCurrent()
	{
		return contexts.peek();
	}
	
	public XmlNamespaceContext moveToNext()
	{
		XmlNamespaceContext current = contexts.peek();
		XmlNamespaceContext next = current.clone();
		contexts.push(next);
		return next;
	}
	
	public void moveBack()
	{
		contexts.pop();
	}
}
