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package org.eclipse.viatra.solver.data.query;
import java.util.Set;
import org.apache.log4j.Logger;
import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
import org.eclipse.viatra.query.runtime.api.scope.IEngineContext;
import org.eclipse.viatra.query.runtime.api.scope.IIndexingErrorListener;
import org.eclipse.viatra.query.runtime.api.scope.QueryScope;
import org.eclipse.viatra.solver.data.model.Tuple;
import org.eclipse.viatra.solver.data.query.internal.RelationUpdateListener;
import org.eclipse.viatra.solver.data.query.internal.RelationalEngineContext;
import org.eclipse.viatra.solver.data.query.view.RelationView;
public class RelationalScope extends QueryScope{
private final RelationUpdateListener updateListener;
public RelationalScope(Set<RelationView<?>> relationViews) {
updateListener = new RelationUpdateListener(relationViews);
}
public <D> void processUpdate(RelationView<D> relationView, Tuple key, D oldValue, D newValue) {
updateListener.processChange(relationView, key, oldValue, newValue);
}
@Override
protected IEngineContext createEngineContext(ViatraQueryEngine engine, IIndexingErrorListener errorListener,
Logger logger) {
return new RelationalEngineContext(this.updateListener);
}
}
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