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 at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * 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 and 14 * limitations under the License. 15 * 16 */ 17 18 package org.apache.juddi.query; 19 20 import java.util.List; 21 22 import javax.persistence.EntityManager; 23 24 import org.apache.juddi.query.util.DynamicQuery; 25 import org.apache.juddi.query.util.FindQualifiers; 26 import org.uddi.api_v3.CategoryBag; 27 28 /** 29 * Returns the list of binding keys possessing the keyedReferences in the passed category bag. 30 * Output is restricted by list of binding keys passed in. If null, all binding templates are searched. 31 * Output is produced by building the appropriate JPA query based on input and find qualifiers. 32 * 33 * From specification: 34 * "This optional argument is a list of category references in the form of keyedReference elements and keyedReferenceGroup 35 * structures. When used, the returned bindingDetail for this API will contain elements matching all of the categories 36 * passed (logical AND by default). Specifying the appropriate findQualifiers can override this behavior." 37 * 38 * @author <a href="mailto:jfaath@apache.org">Jeff Faath</a> 39 */ 40 public class FindBindingByCategoryQuery { 41 42 private static final String ENTITY_NAME_CHILD = "BindingCategoryBag"; 43 44 private static final FindEntityByCategoryQuery findQuery; 45 46 static { 47 findQuery = new FindEntityByCategoryQuery(BindingTemplateQuery.ENTITY_NAME, 48 BindingTemplateQuery.ENTITY_ALIAS, 49 BindingTemplateQuery.KEY_NAME, 50 BindingTemplateQuery.ENTITY_FIELD, 51 ENTITY_NAME_CHILD, 52 BindingTemplateQuery.SIGNATURE_PRESENT); 53 } 54 55 public static List<Object> select(EntityManager em, FindQualifiers fq, CategoryBag categoryBag, String parentKey, List<Object> keysIn) { 56 if (parentKey != null && parentKey.length() > 0) { 57 DynamicQuery.Parameter param = new DynamicQuery.Parameter(BindingTemplateQuery.ENTITY_ALIAS + "." + BindingTemplateQuery.KEY_NAME_PARENT, parentKey, DynamicQuery.PREDICATE_EQUALS); 58 return findQuery.select(em, fq, categoryBag, keysIn, param); 59 } 60 else 61 return findQuery.select(em, fq, categoryBag, keysIn); 62 } 63 }