2 * Copyright 2005 the original author or authors.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 package org.wamblee.usermgt.hibernate;
19 import java.util.List;
21 import java.util.TreeSet;
23 import org.wamblee.persistence.hibernate.HibernateSupport;
24 import org.wamblee.usermgt.Group;
25 import org.wamblee.usermgt.GroupSet;
28 * Set of groups backed by the database.
30 public class HibernateGroupSet extends HibernateSupport implements GroupSet {
33 private static final String QUERY_FIND_BY_NAME = "findGroupByName";
35 private static final String PARAM_NAME = "name";
37 private static final String QUERY_COUNT_GROUPS = "countGroups";
39 public HibernateGroupSet() {
44 * @see org.wamblee.usermgt.GroupSet#groupModified(org.wamblee.usermgt.Group)
46 public void groupModified(Group aGroup) {
47 assert aGroup.getPrimaryKey() != null;
52 * @see org.wamblee.usermgt.GroupSet#find(java.lang.String)
54 public Group find(String aName) {
55 List list = getHibernateTemplate().findByNamedQueryAndNamedParam(QUERY_FIND_BY_NAME, PARAM_NAME, aName);
56 if ( list.size() > 1 ) {
57 throw new RuntimeException("More than one group with the same name '" + aName + "'");
59 if ( list.size() == 0 ) {
62 return new Group((Group)list.get(0));
66 * @see org.wamblee.usermgt.GroupSet#contains(org.wamblee.usermgt.Group)
68 public boolean contains(Group aGroup) {
69 return find(aGroup.getName()) != null;
73 * @see org.wamblee.usermgt.GroupSet#add(org.wamblee.usermgt.Group)
75 public boolean add(Group aGroup) {
76 assert aGroup.getPrimaryKey() == null;
77 if ( contains(aGroup) ) {
85 * @see org.wamblee.usermgt.GroupSet#remove(org.wamblee.usermgt.Group)
87 public boolean remove(Group aGroup) {
88 assert aGroup.getPrimaryKey() != null;
89 if ( !contains(aGroup)) {
92 Group group = (Group) getHibernateTemplate().merge(aGroup);
93 getHibernateTemplate().delete(group);
94 aGroup.setPrimaryKey(null);
95 aGroup.setPersistedVersion(-1);
100 * @see org.wamblee.usermgt.GroupSet#list()
102 public Set<Group> list() {
103 Set<Group> groups = new TreeSet<Group>();
104 List<Group> list = getHibernateTemplate().loadAll(Group.class);
105 for (Group group: list) {
106 groups.add(new Group(group));
112 * @see org.wamblee.usermgt.GroupSet#size()
115 Long result = (Long) getHibernateTemplate().findByNamedQuery(QUERY_COUNT_GROUPS).get(0);
116 return result.intValue();