001/**
002 *
003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
004 *
005 * This library is free software; you can redistribute it and/or
006 * modify it under the terms of the GNU Lesser General Public
007 * License as published by the Free Software Foundation; either 
008 * version 2.1 of the License, or (at your option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013 * Lesser General Public License for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public 
016 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
017 * 
018 **/
019package lucee.runtime.type.it;
020
021import java.util.Enumeration;
022import java.util.Iterator;
023
024import lucee.runtime.type.Collection;
025import lucee.runtime.type.Collection.Key;
026
027public class ValueIterator implements Iterator<Object>, Enumeration<Object> {
028        
029        
030
031        private Collection coll;
032        protected Key[] keys;
033        protected int pos;
034
035        public ValueIterator(Collection coll, Collection.Key[] keys){
036                this.coll=coll;
037                this.keys=keys;
038        }
039        
040        @Override
041        public boolean hasNext() {
042                return (keys.length)>pos;
043        }
044
045        @Override
046        public Object next() {
047                Key key = keys[pos++];
048                if(key==null) return null;
049                return coll.get(key,null);
050        }
051
052        @Override
053        public boolean hasMoreElements() {
054                return hasNext();
055        }
056
057        @Override
058        public Object nextElement() {
059                return next();
060        }
061
062        @Override
063        public void remove() {
064                throw new UnsupportedOperationException("this operation is not suppored");
065        }
066}