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 }