propertyiterator.java

具有不同语法高亮的编辑器实例

/*
 * 08/10/2005
 *
 * PropertyIterator.java - Iterates over property infos.
 * Copyright (C) 2005 Robert Futrell
 * [e-mail]
 * www.website.com
 *
 * 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 2
 * of the License, or 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package org.fife.ui.propertysheet;

import java.util.Iterator;
import java.util.NoSuchElementException;

import org.fife.ui.propertysheet.infos.PropertyInfo;


/**
 * An iterator over property infos.
 *
 * @author Robert Futrell
 * @version 1.0
 */
public class PropertyIterator implements Iterator {

	private PropertyInfo[] infos;
	private int index;


/*****************************************************************************/


	/**
	 * Constructor.
	 *
	 * @param infos The <code>PropertyInfo</code>s over which to iterate.
	 *        This array is expected to be non-<code>null</code>.
	 */
	PropertyIterator(PropertyInfo[] infos) {
		this.infos = infos;
		index = 0;
	}


/*****************************************************************************/


	/**
	 * Returns whether there are more <code>PropertyInfo</code>s in this
	 * iterator.
	 *
	 * @return Whether there are more properties over which to iterate.
	 */
	public boolean hasNext() {
		return index<infos.length;
	}


/*****************************************************************************/


	/**
	 * Returns the next <code>PropertyInfo</code>.
	 *
	 * @return The next <code>PropertyInfo</code>.
	 * @throws NoSuchElementException If there are no more properties over
	 *         which to iterate.
	 */
	public Object next() throws NoSuchElementException {
		if (!hasNext())
			throw new NoSuchElementException();
		return infos[index++];
	}


/*****************************************************************************/


	/**
	 * This method throws an exception and is not supported.
	 *
	 * @throws UnsupportedOperationException always.
	 */
	public void remove() {
		throw new UnsupportedOperationException("remove is not supported");
	}


/*****************************************************************************/

}