org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete/src/org/eclipse/viatra2/gtasm/patternmatcher/incremental/rete/index/GenericProjectionIndexer.java

/*******************************************************************************
 * 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.viatra2.gtasm.patternmatcher.incremental.rete.index;

import java.util.Collection;
import java.util.Iterator;

import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.network.Direction;
import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.network.ReteContainer;
import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.tuple.Tuple;
import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.tuple.TupleMask;


/**
 * A generic Indexer capable of indexing along any valid TupleMask. 
 * Does not keep track of parents, because will not ever pull parents.
 * @author Bergmann Gábor
 *
 */
public class GenericProjectionIndexer extends MemoryIndexer implements ProjectionIndexer {

	/**
	 * @param side
	 * @param node
	 */
	public GenericProjectionIndexer(ReteContainer reteContainer, TupleMask mask) {
		super(reteContainer, mask);
	}

	@Override
	protected void update(Direction direction, Tuple updateElement, Tuple signature, boolean change) {
		propagate(direction, updateElement,signature, change);
	}

	public Collection<Tuple> get(Tuple signature) {
		return memory.get(signature);
	}

	public Iterator<Tuple> iterator() {
		return memory.iterator();
	}

	/* (non-Javadoc)
	 * @see org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.index.IterableIndexer#getSignatures()
	 */
	 public Collection<Tuple> getSignatures() {
		return memory.getSignatures();
	}

	
	
}