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Java > Open Source Codes > org > continuent > sequoia > controller > core > ControllerFactory


1 /**
2  * Sequoia: Database clustering technology.
3  * Copyright (C) 2005 AmicoSoft, Inc. dba Emic Networks
4  * Contact: sequoia@continuent.org
5  *
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  *
18  * Initial developer(s): Emmanuel Cecchet.
19  * Contributor(s): ______________________.
20  */
21
22 package org.continuent.sequoia.controller.core;
23
24 import org.continuent.sequoia.controller.backend.BackendObjectConverter;
25 import org.continuent.sequoia.controller.backend.ResultSetMetaDataFactory;
26 import org.continuent.sequoia.controller.requests.RequestFactory;
27
28 /**
29  * This interace defines a ControllerFactory used to get controller specific
30  * objects.
31  *
32  * @author <a HREF="mailto:emmanuel.cecchet@emicnetworks.com">Emmanuel Cecchet</a>
33  * @version 1.0
34  */
35 public interface ControllerFactory
36 {
37
38   /**
39    * Get the BackendObjectConverter to use to fetch the backend ResultSet.
40    *
41    * @return a BackendObjectConverter
42    */
43   BackendObjectConverter getBackendObjectConverter();
44
45   /**
46    * Request factory to create request objects that are transmitted between
47    * driver and controller
48    *
49    * @return a request factory
50    */
51   RequestFactory getRequestFactory();
52
53   /**
54    * Return a ResultSetMetaDataFactory used to build fields of ResultSets
55    * objects.
56    *
57    * @return a <code>ResultSetMetaDataFactory</code> implementation
58    */
59   ResultSetMetaDataFactory getResultSetMetaDataFactory();
60 }
61
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