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1   package org.apache.torque.engine.platform;
2   
3   /*
4    * Copyright 2001-2005 The Apache Software Foundation.
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  
19  import org.apache.torque.engine.database.model.Domain;
20  import org.apache.torque.engine.database.model.SchemaType;
21  
22  /***
23   * MS SQL Platform implementation.
24   *
25   * @author <a href="mailto:mpoeschl@marmot.at">Martin Poeschl</a>
26   * @version $Id: PlatformMssqlImpl.java 239626 2005-08-24 12:19:51Z henning $
27   */
28  public class PlatformMssqlImpl extends PlatformDefaultImpl
29  {
30      /***
31       * Default constructor.
32       */
33      public PlatformMssqlImpl()
34      {
35          super();
36          initialize();
37      }
38  
39      /***
40       * Initializes db specific domain mapping.
41       */
42      private void initialize()
43      {
44          setSchemaDomainMapping(new Domain(SchemaType.INTEGER, "INT"));
45          setSchemaDomainMapping(new Domain(SchemaType.BOOLEANINT, "INT"));
46          setSchemaDomainMapping(new Domain(SchemaType.DOUBLE, "FLOAT"));
47          setSchemaDomainMapping(new Domain(SchemaType.LONGVARCHAR, "TEXT"));
48          setSchemaDomainMapping(new Domain(SchemaType.DATE, "DATETIME"));
49          setSchemaDomainMapping(new Domain(SchemaType.TIME, "DATETIME"));
50          setSchemaDomainMapping(new Domain(SchemaType.TIMESTAMP, "DATETIME"));
51          setSchemaDomainMapping(new Domain(SchemaType.BINARY, "BINARY(7132)"));
52          setSchemaDomainMapping(new Domain(SchemaType.VARBINARY, "IMAGE"));
53          setSchemaDomainMapping(new Domain(SchemaType.LONGVARBINARY, "IMAGE"));
54      }
55  
56      /***
57       * @see Platform#getMaxColumnNameLength()
58       */
59      public int getMaxColumnNameLength()
60      {
61          return 30;
62      }
63  
64      /***
65       * @return Explicitly returns <code>NULL</code> if null values are
66       * allowed (as recomended by Microsoft).
67       * @see Platform#getNullString(boolean)
68       */
69      public String getNullString(boolean notNull)
70      {
71          return (notNull ? "NOT NULL" : "NULL");
72      }
73  
74  }