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/*******************************************************************************
* Copyright (c) 2010-2016, Andras Szabolcs Nagy, Zoltan Ujhelyi 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 org.eclipse.viatra.dse.base;
import org.eclipse.viatra.transformation.evm.api.RuleEngine;
import org.eclipse.viatra.transformation.evm.api.resolver.ChangeableConflictSet;
import org.eclipse.viatra.transformation.evm.api.resolver.ConflictResolver;
/**
*
* @author Andras Szabolcs Nagy
*
*/
public class SingletonSetConflictResolver implements ConflictResolver {
protected ChangeableConflictSet conflictSet;
protected ConflictResolver conflictResolver;
protected ConflictResolver prevConflictResolver;
protected RuleEngine ruleEngine;
public SingletonSetConflictResolver(ConflictResolver conflictResolver) {
this.conflictResolver = conflictResolver;
conflictSet = conflictResolver.createConflictSet();
}
@Override
public ChangeableConflictSet createConflictSet() {
return conflictSet;
}
public void changeConflictResolver(ConflictResolver conflictResolver) {
ConflictResolver tmp = this.conflictResolver;
this.conflictResolver = conflictResolver;
prevConflictResolver = tmp;
conflictSet = conflictResolver.createConflictSet();
ruleEngine.setConflictResolver(this);
}
public void changeConflictResolverBack() {
changeConflictResolver(prevConflictResolver);
}
public void setRuleEngine(RuleEngine ruleEngine) {
this.ruleEngine = ruleEngine;
ruleEngine.setConflictResolver(this);
}
}
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