001 /**
002 * Copyright 2005-2012 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016 package org.kuali.rice.krad.dao;
017
018 import java.util.Collection;
019 import java.util.List;
020 import java.util.Map;
021
022 import org.kuali.rice.krad.bo.BusinessObject;
023 import org.kuali.rice.krad.bo.PersistableBusinessObject;
024
025 /**
026 * This is the generic data access interface for business objects. This should be used for unit testing purposes only.
027 *
028 *
029 */
030 public interface BusinessObjectDao {
031 /**
032 * Saves any object that implements the BusinessObject interface.
033 *
034 * @param bo
035 */
036 public PersistableBusinessObject save(PersistableBusinessObject bo);
037
038 /**
039 * Saves a List of BusinessObjects.
040 *
041 * @param businessObjects
042 */
043 public List<? extends PersistableBusinessObject> save(List businessObjects);
044
045 /**
046 * Retrieves an object instance identified by its primary key. For composite keys, use {@link #findByPrimaryKey(Class, Map)}
047 *
048 * @param clazz
049 * @param primaryKey
050 * @return
051 */
052 public <T extends BusinessObject> T findBySinglePrimaryKey(Class<T> clazz, Object primaryKey);
053
054 /**
055 * Retrieves an object instance identified bys it primary keys and values. This can be done by constructing a map where the key
056 * to the map entry is the primary key attribute and the value of the entry being the primary key value. For composite keys,
057 * pass in each primaryKey attribute and its value as a map entry.
058 *
059 * @param clazz
060 * @param primaryKeys
061 * @return
062 */
063 public <T extends BusinessObject> T findByPrimaryKey(Class<T> clazz, Map<String, ?> primaryKeys);
064
065 /**
066 * Retrieves an object, based on its PK object
067 *
068 * @param clazz the class of the object to retrieve
069 * @param pkObject the value of the primary key
070 * @return the retrieved PersistableBusinessObject
071 */
072 public abstract <T extends BusinessObject> T findByPrimaryKeyUsingKeyObject(Class<T> clazz, Object pkObject);
073
074 /**
075 * Retrieves an object instance identified by the class of the given object and the object's primary key values.
076 *
077 * @param object
078 * @return
079 */
080 public PersistableBusinessObject retrieve(PersistableBusinessObject object);
081
082 /**
083 * Retrieves a collection of business objects populated with data, such that each record in the database populates a new object
084 * instance. This will only retrieve business objects by class type.
085 *
086 * @param clazz
087 * @return
088 */
089 public <T extends BusinessObject> Collection<T> findAll(Class<T> clazz);
090
091 /**
092 * Retrieves a collection of business objects populated with data, such that each record in the database populates a new object
093 * instance. This will only retrieve business objects by class type.
094 *
095 * Adds criteria on active column to return only active records. Assumes there exist a mapping for PropertyConstants.Active
096 *
097 * @param clazz
098 * @return
099 */
100 public <T extends BusinessObject> Collection<T> findAllActive(Class<T> clazz);
101
102 public <T extends BusinessObject> Collection<T> findAllInactive(Class<T> clazz);
103
104 /**
105 * Retrieves a collection of business objects populated with data, such that each record in the database populates a new object
106 * instance. This will only retrieve business objects by class type. Orders the results by the given field.
107 *
108 * @param clazz
109 * @return
110 */
111 public <T extends BusinessObject> Collection<T> findAllOrderBy(Class<T> clazz, String sortField, boolean sortAscending);
112
113 /**
114 * Retrieves a collection of business objects populated with data, such that each record in the database populates a new object
115 * instance. This will only retrieve business objects by class type. Orders the results by the given field.
116 *
117 * Adds criteria on active column to return only active records. Assumes there exist a mapping for PropertyConstants.Active
118 * @param clazz
119 * @return
120 */
121 public <T extends BusinessObject> Collection<T> findAllActiveOrderBy(Class<T> clazz, String sortField, boolean sortAscending);
122
123 /**
124 * This method retrieves a collection of business objects populated with data, such that each record in the database populates a
125 * new object instance. This will retrieve business objects by class type and also by criteria passed in as key-value pairs,
126 * specifically attribute name-expected value.
127 *
128 * @param clazz
129 * @param fieldValues
130 * @return
131 */
132 public <T extends BusinessObject> Collection<T> findMatching(Class<T> clazz, Map<String, ?> fieldValues);
133
134 /**
135 * Finds all entities matching the passed in Rice JPA criteria
136 *
137 * @param <T> the type of the entity that will be returned
138 * @param criteria the criteria to form the query with
139 * @return a Collection (most likely a List) of all matching entities
140 */
141 //public abstract <T extends BusinessObject> Collection<T> findMatching(Criteria criteria);
142
143 /**
144 * This method retrieves a collection of business objects populated with data, such that each record in the database populates a
145 * new object instance. This will retrieve business objects by class type and also by criteria passed in as key-value pairs,
146 * specifically attribute name-expected value.
147 *
148 * Adds criteria on active column to return only active records. Assumes there exist a mapping for PropertyConstants.Active
149 *
150 * @param clazz
151 * @param fieldValues
152 * @return
153 */
154 public <T extends BusinessObject> Collection<T> findMatchingActive(Class<T> clazz, Map<String, ?> fieldValues);
155
156 /**
157 * @param clazz
158 * @param fieldValues
159 * @return count of BusinessObjects of the given class whose fields match the values in the given Map.
160 */
161 public int countMatching(Class clazz, Map<String, ?> fieldValues);
162
163
164 /**
165 *
166 * This method returns the number of matching result given the positive criterias and
167 * negative criterias. The negative criterias are the ones that will be set to
168 * "notEqualTo" or "notIn"
169 *
170 * @param clazz
171 * @param positiveFieldValues Map of fields and values for positive criteria
172 * @param negativeFieldValues Map of fields and values for negative criteria
173 * @return
174 */
175 public int countMatching(Class clazz, Map<String, ?> positiveFieldValues, Map<String, ?> negativeFieldValues);
176
177 /**
178 * This method retrieves a collection of business objects populated with data, such that each record in the database populates a
179 * new object instance. This will retrieve business objects by class type and also by criteria passed in as key-value pairs,
180 * specifically attribute name-expected value. Orders the results by the given field.
181 *
182 * @param clazz
183 * @param fieldValues
184 * @return
185 */
186 public <T extends BusinessObject> Collection<T> findMatchingOrderBy(Class<T> clazz, Map<String, ?> fieldValues, String sortField, boolean sortAscending);
187
188 /**
189 * Deletes a business object from the database.
190 *
191 * @param bo
192 */
193 public void delete(PersistableBusinessObject bo);
194
195 /**
196 * Deletes each business object in the given List from the database.
197 *
198 * @param boList
199 */
200 public void delete(List<? extends PersistableBusinessObject> boList);
201
202 /**
203 * Deletes the business objects matching the given fieldValues
204 *
205 * @param clazz
206 * @param fieldValues
207 */
208 public void deleteMatching(Class clazz, Map<String, ?> fieldValues);
209
210 /**
211 * Merges the given business object, but tells the ORM that the object is to be treated as Read Only,
212 * and even if it has changes, it will not be persisted to the database
213 *
214 * @param bo the business object to managed
215 * @return the managed copied of the business object
216 */
217 public PersistableBusinessObject manageReadOnly(PersistableBusinessObject bo);
218 }