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.sql.exp.op;
020
021import lucee.runtime.sql.exp.Expression;
022import lucee.runtime.sql.exp.ExpressionSupport;
023
024public class Operation1 extends ExpressionSupport implements Operation {
025
026        private Expression exp;
027        private int operator;
028
029
030        /**
031         * @return the exp
032         */
033        public Expression getExp() {
034                return exp;
035        }
036
037        /**
038         * @return the operator
039         */
040        public int getOperator() {
041                return operator;
042        }
043
044        public Operation1(Expression exp, int operator) {
045                this.exp=exp;
046                this.operator=operator;
047        }
048
049        public String toString(boolean noAlias) {
050                if(!hasAlias() || noAlias) {
051                        if(operator==OPERATION1_IS_NULL || operator==OPERATION1_IS_NOT_NULL) {
052                                return exp.toString(true)+" "+Operation2.toString(operator);
053                        }
054                        return Operation2.toString(operator)+" "+exp.toString(true);
055                }
056                return toString(true)+" as "+getAlias();
057        }
058        
059}