/** | |
* Copyright (c)2020 CEA LIST, Committer Name, and others. | |
* | |
* All rights reserved. This program and the accompanying materials | |
* are made available under the terms of the Eclipse Public License 2.0 | |
* which accompanies this distribution, and is available at | |
* https://www.eclipse.org/legal/epl-2.0/ | |
* | |
* SPDX-License-Identifier: EPL-2.0 | |
* | |
* Contributors: | |
* CEA LIST - Initial API and implementation | |
* Gabriel Pedroza (CEA LIST) gabriel.pedroza@cea.fr | |
* | |
*/ | |
package org.eclipse.papyrus.pdp4eng.designer.engine.api; | |
import org.eclipse.papyrus.pdp4eng.designer.engine.api.internal.StrategyEngine; | |
/** | |
* Req003.002: the engine shall be a singleton. | |
* | |
*/ | |
public class StrategyEngineFactory { | |
protected IStrategyEngine strategyEngine; | |
private StrategyEngineFactory() { | |
super(); | |
} | |
private static StrategyEngineFactory instance=null; | |
public static StrategyEngineFactory getInstance() { | |
if( instance==null) { | |
instance= new StrategyEngineFactory(); | |
} | |
return instance; | |
} | |
/** | |
* | |
* @return get the current engine | |
*/ | |
public IStrategyEngine getCurrentEngine() { | |
if( strategyEngine==null) { | |
createEngine(); | |
} | |
return strategyEngine; | |
} | |
/** | |
* create a default engine | |
* if you want to instanciate an new engine, you can inherit and add your own method of engine creation :D | |
*/ | |
public void createEngine() { | |
strategyEngine= new StrategyEngine(); | |
} | |
} |