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/*******************************************************************************
* Copyright (c) 2010-2019, Tamas Szabo, itemis AG, Gabor Bergmann, IncQuery Labs Ltd.
* 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.matcher;
/**
* Configuration of timely evaluation.
*
* @author Tamas Szabo
* @since 2.4
*/
public class TimelyConfiguration {
private final AggregatorArchitecture aggregatorArchitecture;
private final TimelineRepresentation timelineRepresentation;
public TimelyConfiguration(final TimelineRepresentation timelineRepresentation,
final AggregatorArchitecture aggregatorArchitecture) {
this.aggregatorArchitecture = aggregatorArchitecture;
this.timelineRepresentation = timelineRepresentation;
}
public AggregatorArchitecture getAggregatorArchitecture() {
return aggregatorArchitecture;
}
public TimelineRepresentation getTimelineRepresentation() {
return timelineRepresentation;
}
public enum AggregatorArchitecture {
/**
* Aggregands are copied over from lower timestamps to higher timestamps.
*/
PARALLEL,
/**
* Aggregands are only present at the timestamp where they are inserted at.
* Only aggregate results are pushed towards higher timestamps during folding.
*/
SEQUENTIAL
}
public enum TimelineRepresentation {
/**
* Only the first moment (timestamp) of appearance is maintained per tuple.
*/
FIRST_ONLY,
/**
* Complete timeline (series of appearance & disappearance) is maintained per tuple.
*/
FAITHFUL
}
}
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