001/*
002 * Copyright (c) 2004-2010 The Regents of the University of California.
003 * All rights reserved.
004 *
005 * '$Author: welker $'
006 * '$Date: 2010-05-06 05:21:26 +0000 (Thu, 06 May 2010) $' 
007 * '$Revision: 24234 $'
008 * 
009 * Permission is hereby granted, without written agreement and without
010 * license or royalty fees, to use, copy, modify, and distribute this
011 * software and its documentation for any purpose, provided that the above
012 * copyright notice and the following two paragraphs appear in all copies
013 * of this software.
014 *
015 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
016 * FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
017 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
018 * THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
019 * SUCH DAMAGE.
020 *
021 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
022 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
023 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
024 * PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
025 * CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
026 * ENHANCEMENTS, OR MODIFICATIONS.
027 *
028 */
029
030package org.kepler.objectmanager.data.db;
031
032/**
033 * This class represents no null constraint in column level
034 * 
035 * @author Jing Tao
036 * 
037 */
038
039public class NotNullConstraint implements Constraint {
040        private int type = Constraint.NOTNULLCONSTRAINT;
041        private String[] keys = null;
042
043        /**
044         * Default constructor
045         */
046        public NotNullConstraint() {
047
048        }
049
050        /**
051         * method to get type
052         * 
053         * @return int
054         */
055        public int getType() {
056                return type;
057        }
058
059        /**
060         * Method to get keys
061         * 
062         * @return String[]
063         */
064        public String[] getKeys() {
065                return keys;
066        }
067
068        /**
069         * Method to set keys
070         * 
071         * @param myKeys
072         *            String[]
073         */
074        public void setKeys(String[] myKeys) {
075                keys = myKeys;
076        }
077
078        /**
079         * Method to print not null key words in sql cmommand
080         * 
081         * @throws UnWellFormedConstraintException
082         * @return String
083         */
084        public String printString() throws UnWellFormedConstraintException {
085                String sql = Constraint.NOTNULLSTRING;
086                return sql;
087        }
088
089}