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/*******************************************************************************
* Copyright (c) 2004-2008 Gabor Bergmann and Daniel Varro
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-v20.html.
*
* SPDX-License-Identifier: EPL-2.0
*******************************************************************************/
package tools.refinery.viatra.runtime.rete.index;
import java.util.Collection;
import java.util.List;
import tools.refinery.viatra.runtime.matchers.tuple.Tuple;
import tools.refinery.viatra.runtime.rete.network.Receiver;
import tools.refinery.viatra.runtime.rete.network.ReteContainer;
import tools.refinery.viatra.runtime.rete.network.Supplier;
/**
* Defines a trivial indexer that identically projects the contents of a memory-equipped node, and can therefore save
* space. Can only exist in connection with a memory, and must be operated by another node. Do not attach parents
* directly!
*
* @noimplement Rely on the provided implementations
* @noreference Use only via standard Node and Indexer interfaces
* @noinstantiate This class is not intended to be instantiated by clients.
* @author Gabor Bergmann
*/
public class MemoryIdentityIndexer extends IdentityIndexer {
protected final Collection<Tuple> memory;
/**
* @param reteContainer
* @param tupleWidth
* the width of the tuples of memoryNode
* @param memory
* the memory whose contents are to be identity-indexed
* @param parent
* the parent node that owns the memory
*/
public MemoryIdentityIndexer(ReteContainer reteContainer, int tupleWidth, Collection<Tuple> memory,
Supplier parent, Receiver activeNode, List<ListenerSubscription> sharedSubscriptionList) {
super(reteContainer, tupleWidth, parent, activeNode, sharedSubscriptionList);
this.memory = memory;
}
@Override
protected Collection<Tuple> getTuples() {
return this.memory;
}
}
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