/*******************************************************************************
* Copyright (c) 2004-2008 Gabor Bergmann and Daniel Varro
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Gabor Bergmann - initial API and implementation
*******************************************************************************/
package org.eclipse.incquery.runtime.rete.single;
import java.util.Collection;
import org.eclipse.incquery.runtime.rete.network.Direction;
import org.eclipse.incquery.runtime.rete.network.ReteContainer;
import org.eclipse.incquery.runtime.rete.tuple.Tuple;
public abstract class TransformerNode extends SingleInputNode {
public TransformerNode(ReteContainer reteContainer) {
super(reteContainer);
}
protected abstract Tuple transform(Tuple input);
public void pullInto(Collection<Tuple> collector) {
for (Tuple ps : reteContainer.pullPropagatedContents(this)) {
collector.add(transform(ps));
}
}
public void update(Direction direction, Tuple updateElement) {
propagateUpdate(direction, transform(updateElement));
}
}