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SmartWeb is a web application development meta framework based on Jakarta Struts, Hibernate and other open source frameworks and libraries.
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/*
 * The SmartWeb Framework
 * Copyright (C) 2004-2006
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * For further informations on the SmartWeb Framework please visit
 *
 *                        http://smartweb.sourceforge.net
 */
 
package net.smartlab.web.page;

import java.util.Collection;
import java.util.Iterator;

/**
 * TODO documentation
 * 
 * @author rlogiacco
 */
public class CollectionPaginator extends Paginator implements Collection {

	private Collection collection;

	/**
	 * TODO documentation
	 * 
	 * @param collection
	 */
	public CollectionPaginator(Collection collection) {
		this(collection, 0);
	}

	/**
	 * TODO documentation
	 * 
	 * @param collection
	 * @param size
	 */
	public CollectionPaginator(Collection collection, int size) {
		this(collection, size, Paginator.UNLIMITED_PAGES);
	}

	/**
	 * TODO documentation
	 * 
	 * @param collection
	 * @param size
	 * @param pages
	 */
	public CollectionPaginator(Collection collection, int size, int pages) {
		super(size, pages);
		super.setCount(collection.size());
		this.collection = collection;
	}

	/**
	 * @see net.smartlab.web.Paginator#setArray()
	 */
	protected void setArray() {
		Object[] temp = collection.toArray();
		try {
			java.lang.System.arraycopy(temp, (super.getPage() - 1) * array.length, array, 0, array.length);
		} catch (IndexOutOfBoundsException ioobe) {
			java.lang.System.arraycopy(temp, (super.getPage() - 1) * array.length, array, 0, collection.size() % array.length);
			array[collection.size() % array.length] = null;
		}
	}

	/**
	 * @see java.util.Collection#size()
	 */
	public int size() {
		return collection.size();
	}

	/**
	 * @see java.util.Collection#clear()
	 */
	public void clear() {
		collection.clear();
	}

	/**
	 * @see java.util.Collection#isEmpty()
	 */
	public boolean isEmpty() {
		return collection.isEmpty();
	}

	/**
	 * @see java.util.Collection#toArray()
	 */
	public Object[] toArray() {
		return this.array;
	}

	/**
	 * @see java.util.Collection#add(java.lang.Object)
	 */
	public boolean add(Object o) {
		return collection.add(o);
	}

	/**
	 * @see java.util.Collection#contains(java.lang.Object)
	 */
	public boolean contains(Object o) {
		return collection.contains(o);
	}

	/**
	 * @see java.util.Collection#remove(java.lang.Object)
	 */
	public boolean remove(Object o) {
		return collection.remove(o);
	}

	/**
	 * @see java.util.Collection#addAll(java.util.Collection)
	 */
	public boolean addAll(Collection c) {
		return collection.addAll(c);
	}

	/**
	 * @see java.util.Collection#containsAll(java.util.Collection)
	 */
	public boolean containsAll(Collection c) {
		return collection.containsAll(c);
	}

	/**
	 * @see java.util.Collection#removeAll(java.util.Collection)
	 */
	public boolean removeAll(Collection c) {
		return collection.removeAll(c);
	}

	/**
	 * @see java.util.Collection#retainAll(java.util.Collection)
	 */
	public boolean retainAll(Collection c) {
		return collection.retainAll(c);
	}

	/**
	 * @see java.util.Collection#iterator()
	 */
	public Iterator iterator() {
		return this;
	}

	/**
	 * @see java.util.Collection#toArray(java.lang.Object[])
	 */
	public Object[] toArray(Object[] a) {
		throw new UnsupportedOperationException();
	}

}