plugins/org.eclipse.viatra2.core2/src/org/eclipse/viatra2/core/simple/tempdata/TemporaryDataFactory.java

/*******************************************************************************
 * Copyright (c) 2004-2008 Andras Schmidt, Andras Balogh, Istvan Rath and Daniel Varro
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Andras Schmidt, Andras Balogh, Istvan Rath - initial API and implementation
 *******************************************************************************/

package org.eclipse.viatra2.core.simple.tempdata;


/**
 * Factory class for <code>TemporaryData</code> objects. All created temporary
 * objects can be managed through this object.
 * 
 * @author Andras Schmidt
 * 
 */
public class TemporaryDataFactory<T> {
	/**
	 * Create a new temporary data object
	 * 
	 * @param state
	 *            VPM model state when data is valid
	 * @param o
	 *            initial data
	 * @return new temporary data obejct
	 */
	public TemporaryData<T> create(int state, T o) {
		TemporaryData<T> ret = new TemporaryData<T>(state, o);
	//	tempDatas.add(ret);
		return ret;
	}

	/**
	 * Create a new temporary data object that contains no valid data
	 * 
	 * @return new temporary data obejct
	 */
	public TemporaryData<T> create() {
		TemporaryData<T> ret = new TemporaryData<T>();
	//	tempDatas.add(ret);
		return ret;
	}

	//private ArrayList<TemporaryData> tempDatas = new ArrayList<TemporaryData>();

	/**
	 * Discard all temporary data. (This method is used to see how much memory
	 * cached data eats, you can also see how many VPM elements were queried
	 * since the last discard)
	 * 
	 * @return number of temporary datas stored before discrding.
	 */
	public int discardAll() {
		int ret = 0;
//		for (int i = 0; i < tempDatas.size(); ++i) {
//			ret += ((TemporaryData<?>) tempDatas.get(i)).discard();
//		}
		return ret;
	}

}