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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.FindQualifiers;
25  import org.uddi.api_v3.CategoryBag;
26  
27  /**
28   * Returns the list of business keys possessing the keyedReferenceGroups in the passed category bag.
29   * Output is restricted by list of business keys passed in.  If null, all business entities are searched.
30   * Output is produced by building the appropriate JPA query based on input and find qualifiers.
31   * 
32   * From specification:
33   * "combineCategoryBags:  this may only be used in the find_business and find_service calls.  In the case of 
34   * find_business, this qualifier makes the categoryBag entries for the full businessEntity element behave as though all 
35   * categoryBag elements found at the businessEntity level and in all contained or referenced businessService elements 
36   * and bindingTemplate elements were combined.  Searching for a category will yield a positive match on a registered 
37   * business if any of the categoryBag elements contained within the full businessEntity element (including the 
38   * categoryBag elements within contained or referenced businessService elements or bindingTemplate elements) 
39   * contains the filter criteria.  In the case of find_service, this qualifier makes the categoryBag entries 
40   * for the full businessService element behave as though all categoryBag elements found at the businessService level 
41   * and in all contained or referenced elements in the bindingTemplate elements were combined.  Searching for a category 
42   * will yield a positive match on a registered service if any of the categoryBag elements contained within the 
43   * full businessService element (including the categoryBag elements within contained or referenced bindingTemplate 
44   * elements) contains the filter criteria. This find qualifier does not cause the keyedReferences in categoryBags 
45   * to be combined with the keyedReferences in keyedReferenceGroups in categoryBags when performing the comparison.  
46   * The keyedReferences are combined with each other, and the keyedReferenceGroups are combined with each other."
47   * 
48   * @author <a href="mailto:tcunning@apache.org">Tom Cunningham</a>
49   */
50  public class FindBusinessByCombinedCategoryQuery {
51          
52          private static final String ENTITY_NAME_CHILD  = "BusinessCategoryBag";
53          private static final String ENTITY_FIELD2      = "businessService." + BusinessEntityQuery.ENTITY_FIELD;
54          private static final String ENTITY_NAME_CHILD2 = "ServiceCategoryBag";
55          private static final String ENTITY_FIELD3      = "bindingTemplate.businessService." + BusinessEntityQuery.ENTITY_FIELD;
56          private static final String ENTITY_NAME_CHILD3 = "BindingCategoryBag";
57          
58  
59          private static FindEntityByCombinedCategoryQuery findQuery;
60          
61          static {
62              findQuery = new FindEntityByCombinedCategoryQuery(BusinessEntityQuery.ENTITY_NAME, 
63                              BusinessEntityQuery.ENTITY_ALIAS, 
64                              BusinessEntityQuery.KEY_NAME, 
65                              BusinessEntityQuery.ENTITY_FIELD, 
66                              ENTITY_NAME_CHILD,
67                              ENTITY_FIELD2,
68                              ENTITY_NAME_CHILD2,
69                              ENTITY_FIELD3,
70                              ENTITY_NAME_CHILD3,
71                              BusinessEntityQuery.SIGNATURE_PRESENT);
72          }
73          
74          public static List<Object> select(EntityManager em, FindQualifiers fq, CategoryBag categoryBag, List<Object> keysIn) {
75                  return findQuery.select(em, fq, categoryBag, keysIn);
76          }
77  }