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/*******************************************************************************
* Copyright (c) 2010-2018, Tamas Szabo, Istvan Rath 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.network.indexer;
import tools.refinery.viatra.runtime.matchers.tuple.Tuple;
import tools.refinery.viatra.runtime.matchers.util.Clearable;
import tools.refinery.viatra.runtime.rete.network.mailbox.Mailbox;
/**
* A message indexer is used by {@link Mailbox}es to index their contents.
*
* @author Tamas Szabo
* @since 2.0
*/
public interface MessageIndexer extends Clearable {
public void insert(final Tuple update);
public void delete(final Tuple update);
public void update(final Tuple update, final int delta);
public boolean isEmpty();
public int getCount(final Tuple update);
}
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