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'databene webdecs' is an open source software library for WEB Data Extraction, Conversion and Scripting, written by Volker Bergmann.

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/*
 * (c) Copyright 2011 by Volker Bergmann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted under the terms of the
 * GNU General Public License (GPL).
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
 * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

package org.databene.webdecs;

import java.util.ArrayList;
import java.util.List;

import org.databene.commons.CollectionUtil;

/**
 * {@link List}-based implementation of the {@link DataIterator} interface.


 * Created: 08.12.2011 14:36:08
 * @since 0.6.5
 * @author Volker Bergmann
 */
public class ListDataIterator implements DataIterator {
	
	private Class type;
	private List data;
	private int cursor;

	public ListDataIterator(Class type, E... data) {
		this(type, CollectionUtil.toList(data));
	}

	public ListDataIterator(Class type, List data) {
		this.type = type;
		this.data = (data != null ? data : new ArrayList());
		this.cursor = 0;
	}

	public Class getType() {
		return type;
	}

	public DataContainer next(DataContainer container) {
		if (cursor >= data.size())
			return null;
		return container.setData(data.get(cursor++));
	}

	public void close() {
		// nothing to do
	}

}