ProgramConnectorPair.java

/*******************************************************************************
 * Copyright (c) 2003-2005, 2013 Till Zoppke.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     Till Zoppke - initial API and implementation
 ******************************************************************************/
/*
 * Created on 02.04.2004
 */
package eniac.data.model.parent;

import eniac.data.PulseInteractor;
import eniac.data.model.Connector;
import eniac.data.model.EData;

/**
 * @author zoppke
 */
public class ProgramConnectorPair extends ParentData implements PulseInteractor {

	private long _lastPulse;

	public ProgramConnectorPair() {
		// empty
	}

	/**
	 * @param time
	 * @return @see eniac.data.PulseInteractor#canReceiveProgram(long)
	 */
	public boolean canReceiveProgram(long time, PulseInteractor source) {
		return _lastPulse < time && ((PulseInteractor) getParent()).canReceiveProgram(time, this);
	}

	/**
	 * @param time
	 * @param source
	 * @see eniac.data.PulseInteractor#receiveProgram(long,
	 *      eniac.data.PulseInteractor)
	 */
	public void receiveProgram(long time, PulseInteractor source) {
		// note: we already asked parent whether it can receive
		((PulseInteractor) _parent).receiveProgram(time, this);
		_lastPulse = time;
	}

	/**
	 * @param time
	 * @param source
	 * @see eniac.data.PulseInteractor#sendProgram(long,
	 *      eniac.data.PulseInteractor)
	 */
	public void sendProgram(long time, PulseInteractor source) {
		if (_lastPulse < time) {
			EData[] children = getGarten().getAllKinder();
			for (int i = 0; i < children.length; ++i) {
				Connector c = (Connector) children[i];
				c.sendProgram(time, this);
			}
			_lastPulse = time;
		}
	}

	/**
	 * @param time
	 * @param source
	 * @return @see eniac.data.PulseInteractor#canReceiveDigit(long,
	 *         eniac.data.PulseInteractor)
	 */
	public boolean canReceiveDigit(long time, PulseInteractor source) {
		return false;
	}

	/**
	 * @param time
	 * @param value
	 * @param source
	 * @see eniac.data.PulseInteractor#receiveDigit(long, int,
	 *      eniac.data.PulseInteractor)
	 */
	public void receiveDigit(long time, long value, PulseInteractor source) {
		// nop
	}

	/**
	 * @param time
	 * @param value
	 * @param source
	 * @see eniac.data.PulseInteractor#sendDigit(long, int,
	 *      eniac.data.PulseInteractor)
	 */
	public void sendDigit(long time, long value, PulseInteractor source) {
		// nop
	}
}