/* | |
* Copyright 2001-2008 The Apache Software Foundation. | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
* | |
*/ | |
package org.apache.juddi.query; | |
import java.util.List; | |
import javax.persistence.EntityManager; | |
import org.apache.juddi.query.util.DynamicQuery; | |
import org.apache.juddi.query.util.FindQualifiers; | |
import org.uddi.api_v3.CategoryBag; | |
/** | |
* Returns the list of service keys possessing the keyedReferenceGroups in the passed category bag. | |
* Output is restricted by list of service keys passed in. If null, all services are searched. | |
* Output is produced by building the appropriate JPA query based on input and find qualifiers. | |
* | |
* From specification: | |
* "This is a list of category references. The returned serviceList contains serviceInfo structures matching all of the | |
* categories passed (logical AND by default). Specifying the appropriate findQualifiers can override this behavior. | |
* | |
* A given keyedReferenceGroup "X" (e.g., within a given categoryBag) matches a keyedReferenceGroup "Y" in the registry if | |
* and only if the tModelKey assigned to the keyedReferenceGroup X matches the tModelKey assigned to the keyedReferenceGroup | |
* Y and the set of keyedReferences in "X" are a subset of the set of keyedReferences in "Y." The order of individual | |
* keyedReferences within a keyedReferenceGroup is not important. Matching rules for the individual contained keyedReference | |
* elements are the same as above." | |
* | |
* @author <a href="mailto:jfaath@apache.org">Jeff Faath</a> | |
*/ | |
public class FindServiceByCategoryGroupQuery { | |
private static final String ENTITY_NAME_CHILD = "ServiceCategoryBag"; | |
private static final FindEntityByCategoryGroupQuery findQuery; | |
static { | |
findQuery = new FindEntityByCategoryGroupQuery(BusinessServiceQuery.ENTITY_NAME, | |
BusinessServiceQuery.ENTITY_ALIAS, | |
BusinessServiceQuery.KEY_NAME, | |
BusinessServiceQuery.ENTITY_FIELD, | |
ENTITY_NAME_CHILD, | |
BusinessServiceQuery.SIGNATURE_PRESENT); | |
} | |
public static List<Object> select(EntityManager em, FindQualifiers fq, CategoryBag categoryBag, String parentKey, List<Object> keysIn) { | |
if (parentKey != null && parentKey.length() > 0) { | |
DynamicQuery.Parameter param = new DynamicQuery.Parameter(BusinessServiceQuery.ENTITY_ALIAS + "." + BusinessServiceQuery.KEY_NAME_PARENT, parentKey, DynamicQuery.PREDICATE_EQUALS); | |
return findQuery.select(em, fq, categoryBag, keysIn, param); | |
} | |
else | |
return findQuery.select(em, fq, categoryBag, keysIn); | |
} | |
} |