VirtualContents.java

/*******************************************************************************
 * Copyright (c) 2013 INRIA.
 * 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:
 * Cau� Clasen - initial API and implementation
 *******************************************************************************/

package fr.inria.atlanmod.emfviews.core;

import java.util.AbstractList;
import java.util.List;

import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.resource.Resource;

public class VirtualContents<E> extends AbstractList<E> implements EList<E> {

	private List<E>[] subLists;

	public VirtualContents(Resource resource, List<E>... subLists) {
		this.subLists = subLists;
	}

	@SuppressWarnings("unchecked")
	@Override
	public E get(int index) {
		if (index >= 0) {
			for (int i = 0; i < this.subLists.length; i++) {
				if (index < this.subLists[i].size()) {
					E v = this.subLists[i].get(index);

					return v;

				} else {
					index -= this.subLists[i].size();
				}
			}
		}
		throw new IndexOutOfBoundsException();
	}

	@Override
	public E set(int index, E object) {
		return super.set(index, object);
	}

	@Override
	public int size() {
		int ret = 0;
		for (int i = 0; i < this.subLists.length; i++) {
			ret += this.subLists[i].size();
		}
		return ret;
	}

	@Override
	public void move(int newPosition, E object) {

	}

	@Override
	public E move(int newPosition, int oldPosition) {

		return null;
	}
}