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/*******************************************************************************
* Copyright (c) 2010-2015, Marton Bur, Zoltan Ujhelyi, 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.localsearch.matcher.integration;
import tools.refinery.viatra.runtime.matchers.backend.IMatcherCapability;
import tools.refinery.viatra.runtime.matchers.backend.IQueryBackend;
import tools.refinery.viatra.runtime.matchers.backend.IQueryBackendFactory;
import tools.refinery.viatra.runtime.matchers.backend.QueryEvaluationHint;
import tools.refinery.viatra.runtime.matchers.context.IQueryBackendContext;
import tools.refinery.viatra.runtime.matchers.psystem.queries.PQuery;
/**
* @author Marton Bur, Zoltan Ujhelyi
* @since 1.7
*
*/
public enum LocalSearchGenericBackendFactory implements IQueryBackendFactory {
INSTANCE;
/**
* @since 1.5
*/
@Override
public IQueryBackend create(IQueryBackendContext context) {
return new LocalSearchBackend(context) {
@Override
protected AbstractLocalSearchResultProvider initializeResultProvider(PQuery query, QueryEvaluationHint hints) {
return new GenericLocalSearchResultProvider(this, context, query, planProvider, hints);
}
@Override
public IQueryBackendFactory getFactory() {
return INSTANCE;
}
};
}
@Override
public Class<? extends IQueryBackend> getBackendClass() {
return LocalSearchBackend.class;
}
/**
* @since 1.4
*/
@Override
public IMatcherCapability calculateRequiredCapability(PQuery query, QueryEvaluationHint hint) {
return LocalSearchHints.parse(hint);
}
@Override
public boolean isCaching() {
return false;
}
}
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