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.functions.query;
020
021import lucee.runtime.PageContext;
022import lucee.runtime.exp.PageException;
023import lucee.runtime.functions.BIF;
024import lucee.runtime.op.Caster;
025import lucee.runtime.type.Collection;
026import lucee.runtime.type.KeyImpl;
027import lucee.runtime.type.Query;
028
029public class QueryColumnExists extends BIF {
030
031        private static final long serialVersionUID = -661796711105724696L;
032
033        public static boolean call(PageContext pc , Query qry, String key) {
034                return call(pc,qry,KeyImpl.getInstance(key));
035        }
036        public static boolean call(PageContext pc , Query qry, Collection.Key key) {
037                return qry.getColumn(key,null)!=null;
038        }
039        
040        @Override
041        public Object invoke(PageContext pc, Object[] args) throws PageException {
042                return call(pc,Caster.toQuery(args[0]),Caster.toKey(args[1]));
043        }
044}