SimpleListView.java

/*******************************************************************************
 * GenPlay, Einstein Genome Analyzer
 * Copyright (C) 2009, 2014 Albert Einstein College of Medicine
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * Authors: Julien Lajugie <julien.lajugie@einstein.yu.edu>
 *          Nicolas Fourel <nicolas.fourel@einstein.yu.edu>
 *          Eric Bouhassira <eric.bouhassira@einstein.yu.edu>
 * 
 * Website: <http://genplay.einstein.yu.edu>
 ******************************************************************************/
package edu.yu.einstein.genplay.dataStructure.list.listView.SimpleListView;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.util.List;

import edu.yu.einstein.genplay.dataStructure.list.listView.AbstractListView;
import edu.yu.einstein.genplay.dataStructure.list.listView.ListView;


/**
 * Simple implementation of the {@link ListView} with data stored in a {@link List} implementation
 * @param <T> type of the data of the {@link SimpleListView}
 * @author Julien Lajugie
 */
public final class SimpleListView<T> extends AbstractListView<T> implements ListView<T> {

	/** Generated serial ID */
	private static final long serialVersionUID = 2581587146772942209L;

	/**  Version number of the class */
	private static final transient int CLASS_VERSION_NUMBER = 0;

	/** Data of the view */
	private final List<T> data;


	/**
	 * Creates an instance of {@link SimpleListView}
	 * @param data data of the view.  This object should not be modified after the creation of the view
	 */
	SimpleListView(List<T> data) {
		this.data = data;
	}


	@Override
	public T get(int elementIndex) {
		return data.get(elementIndex);
	}


	/**
	 * Method used for deserialization
	 * @param in
	 * @throws IOException
	 * @throws ClassNotFoundException
	 */
	private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
		// read the version number of the object
		in.readInt();
		// read the final fields
		in.defaultReadObject();
	}


	@Override
	public int size() {
		return data.size();
	}


	/**
	 * Method used for serialization
	 * @param out
	 * @throws IOException
	 */
	private void writeObject(java.io.ObjectOutputStream out) throws IOException {
		// write the format version number of the object
		out.writeInt(CLASS_VERSION_NUMBER);
		// write the final fields
		out.defaultWriteObject();
	}
}