1/*2 * Copyright 2001-2008 The Apache Software Foundation.3 * 4 * Licensed under the Apache License, Version 2.0 (the "License");5 * you may not use this file except in compliance with the License.6 * You may obtain a copy of the License at7 * 8 * http://www.apache.org/licenses/LICENSE-2.09 * 10 * Unless required by applicable law or agreed to in writing, software11 * distributed under the License is distributed on an "AS IS" BASIS,12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.13 * See the License for the specific language governing permissions and14 * limitations under the License.15 *16 */1718package org.apache.juddi.query.util;
1920import java.io.Serializable;
21import java.util.Comparator;
22import org.uddi.api_v3.KeyedReferenceGroup;
2324/**25 * @author <a href="mailto:jfaath@apache.org">Jeff Faath</a>26 */27publicclassKeyedRefGroupTModelComparatorimplements Comparator<KeyedReferenceGroup>, Serializable {
28privatestaticfinallong serialVersionUID = 1L;
2930publicint compare(KeyedReferenceGroup krg1, KeyedReferenceGroup krg2) {
31if (krg1 == null && krg2 == null)
32return 0;
33if (krg1 == null)
34return -1;
35if (krg2 == null)
36return 1;
3738if (krg1.getTModelKey() == null && krg2.getTModelKey() == null)
39return 0;
40if (krg1.getTModelKey() == null)
41return -1;
42if (krg2.getTModelKey() == null)
43return 1;
4445return krg1.getTModelKey().compareTo(krg2.getTModelKey());
46 }
4748 }