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;
1920import java.util.List;
2122import javax.persistence.EntityManager;
2324import org.apache.juddi.query.util.DynamicQuery;
25import org.apache.juddi.query.util.FindQualifiers;
26import org.uddi.api_v3.CategoryBag;
2728/**29 * Returns the list of service keys possessing the keyedReferences in the passed category bag.30 * Output is restricted by list of service keys passed in. If null, all business services are searched.31 * Output is produced by building the appropriate JPA query based on input and find qualifiers.32 * 33 * From specification:34 * "This is a list of category references. The returned serviceList contains serviceInfo structures matching all of 35 * the categories passed (logical AND by default). Specifying the appropriate findQualifiers can override this behavior."36 * 37 * @author <a href="mailto:jfaath@apache.org">Jeff Faath</a>38 */39publicclassFindServiceByCategoryQuery {
4041privatestaticfinal String ENTITY_NAME_CHILD = "ServiceCategoryBag";
4243privatestaticfinalFindEntityByCategoryQuery findQuery;
4445static {
46 findQuery = newFindEntityByCategoryQuery(BusinessServiceQuery.ENTITY_NAME,
47 BusinessServiceQuery.ENTITY_ALIAS,
48 BusinessServiceQuery.KEY_NAME,
49 BusinessServiceQuery.ENTITY_FIELD,
50 ENTITY_NAME_CHILD,
51 BusinessServiceQuery.SIGNATURE_PRESENT);
52 }
5354publicstatic List<Object> select(EntityManager em, FindQualifiers fq, CategoryBag categoryBag, String parentKey, List<Object> keysIn) {
55if (parentKey != null && parentKey.length() > 0) {
56 DynamicQuery.Parameter param = new DynamicQuery.Parameter(BusinessServiceQuery.ENTITY_ALIAS + "."57 + BusinessServiceQuery.KEY_NAME_PARENT, parentKey, DynamicQuery.PREDICATE_EQUALS);
58return findQuery.select(em, fq, categoryBag, keysIn, param);
59 }
60else61return findQuery.select(em, fq, categoryBag, keysIn);
62 }
63 }