/*
* Copyright (c) 2012 Sam Harwell, Tunnel Vision Laboratories LLC
* All rights reserved.
*
* The source code of this document is proprietary work, and is not licensed for
* distribution. For information about licensing, contact Sam Harwell at:
* sam@tunnelvisionlabs.com
*/
package org.tvl.goworks.editor.go.codemodel.impl;
import java.util.AbstractList;
import java.util.List;
/**
*
* @author Sam Harwell
*/
public class ProxyCollection<E> extends AbstractList<E> {
private final List<? extends E>[] collections;
@SafeVarargs
@SuppressWarnings("varargs")
public ProxyCollection(List<? extends E> ...collections) {
this.collections = collections;
}
@Override
public E get(int index) {
if (index < 0) {
throw new ArrayIndexOutOfBoundsException(index);
}
int offset = 0;
for (List<? extends E> list : collections) {
if (index - offset < list.size()) {
return list.get(index - offset);
}
offset += list.size();
}
throw new ArrayIndexOutOfBoundsException(index);
}
@Override
public int size() {
int size = 0;
for (List<?> list : collections) {
size += list.size();
}
return size;
}
}