/*
 * Reference ETL Parser for Java
 * Copyright (c) 2000-2009 Constantine A Plotnikov
 *
 * Permission is hereby granted, free of charge, to any person 
 * obtaining a copy of this software and associated documentation 
 * files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge, 
 * publish, distribute, sublicense, and/or sell copies of the Software, 
 * and to permit persons to whom the Software is furnished to do so, 
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be 
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
 * SOFTWARE. 
 */
package net.sf.etl.parsers.internal.term_parser.states;

import net.sf.etl.parsers.PhraseParser;

/**
 * A push state. It now become possible to report events at the mark. The parser
 * will suspend returning events to client immediately and will wait until mark
 * is popped. Append method on parser will return false in meantime.
 * 
 * @author const
 * 
 */
public class PushMarkState extends ActionState {

	/**
	 * A constructor
	 * 
	 * @param nextState
	 *            a next state that should be activated after mark is pushed.
	 */
	public PushMarkState(State nextState) {
		super(nextState);
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public boolean run(PhraseParser parser, StateMachinePeer peer,
			Activation activation) {
		activation.changeState(getNextState());
		peer.pushMark();
		return false;
	}

}