| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| ExistsCriteria |
|
| 2.0;2 |
| 1 | package org.apache.ojb.broker.query; | |
| 2 | ||
| 3 | /* Copyright 2002-2005 The Apache Software Foundation | |
| 4 | * | |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 6 | * you may not use this file except in compliance with the License. | |
| 7 | * You may obtain a copy of the License at | |
| 8 | * | |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 | * | |
| 11 | * Unless required by applicable law or agreed to in writing, software | |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 | * See the License for the specific language governing permissions and | |
| 15 | * limitations under the License. | |
| 16 | */ | |
| 17 | ||
| 18 | /** | |
| 19 | * SelectionCriteria for [not] exists(sub query) | |
| 20 | * | |
| 21 | * @author <a href="mailto:jbraeuchi@gmx.ch">Jakob Braeuchi</a> | |
| 22 | * @version $Id: ExistsCriteria.java,v 1.1 2007-08-24 22:17:36 ewestfal Exp $ | |
| 23 | */ | |
| 24 | public class ExistsCriteria extends SelectionCriteria | |
| 25 | { | |
| 26 | private boolean m_negative = false; | |
| 27 | /** | |
| 28 | * Constructor for ExistsCriteria. | |
| 29 | * @param subQuery | |
| 30 | * @param negative use negative form | |
| 31 | */ | |
| 32 | ExistsCriteria(Query subQuery, boolean negative) | |
| 33 | { | |
| 34 | super("", subQuery, (String)null); | |
| 35 | m_negative = negative; | |
| 36 | } | |
| 37 | ||
| 38 | /* | |
| 39 | * @see SelectionCriteria#getClause() | |
| 40 | */ | |
| 41 | public String getClause() | |
| 42 | { | |
| 43 | if (m_negative) | |
| 44 | { | |
| 45 | return " NOT EXISTS"; | |
| 46 | } | |
| 47 | else | |
| 48 | { | |
| 49 | return " EXISTS"; | |
| 50 | } | |
| 51 | } | |
| 52 | } |