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1   package org.apache.torque.engine.platform;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *   http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import org.apache.torque.engine.database.model.Domain;
23  import org.apache.torque.engine.database.model.SchemaType;
24  
25  /***
26   * Postgresql Platform implementation.
27   *
28   * @author <a href="mailto:mpoeschl@marmot.at">Martin Poeschl</a>
29   * @version $Id: PlatformPostgresqlImpl.java 491219 2006-12-30 12:39:20Z tfischer $
30   */
31  public class PlatformPostgresqlImpl extends PlatformDefaultImpl
32  {
33      /***
34       * Default constructor.
35       */
36      public PlatformPostgresqlImpl()
37      {
38          super();
39          initialize();
40      }
41  
42      /***
43       * Initializes db specific domain mapping.
44       */
45      private void initialize()
46      {
47          setSchemaDomainMapping(new Domain(SchemaType.BIT, "BOOLEAN"));
48          setSchemaDomainMapping(new Domain(SchemaType.TINYINT, "INT2"));
49          setSchemaDomainMapping(new Domain(SchemaType.SMALLINT, "INT2"));
50          setSchemaDomainMapping(new Domain(SchemaType.BIGINT, "INT8"));
51          setSchemaDomainMapping(new Domain(SchemaType.REAL, "FLOAT"));
52          setSchemaDomainMapping(new Domain(SchemaType.BOOLEANCHAR, "CHAR"));
53          setSchemaDomainMapping(new Domain(SchemaType.BOOLEANINT, "INT2"));
54          setSchemaDomainMapping(new Domain(SchemaType.DOUBLE, "DOUBLE PRECISION"));
55          setSchemaDomainMapping(new Domain(SchemaType.LONGVARCHAR, "TEXT"));
56          setSchemaDomainMapping(new Domain(SchemaType.BINARY, "BYTEA"));
57          setSchemaDomainMapping(new Domain(SchemaType.VARBINARY, "BYTEA"));
58          setSchemaDomainMapping(new Domain(SchemaType.LONGVARBINARY, "BYTEA"));
59          setSchemaDomainMapping(new Domain(SchemaType.BLOB, "BYTEA"));
60          setSchemaDomainMapping(new Domain(SchemaType.CLOB, "TEXT"));
61      }
62  
63      /***
64       * @see Platform#getNativeIdMethod()
65       */
66      public String getNativeIdMethod()
67      {
68          return Platform.SEQUENCE;
69      }
70  
71      /***
72       * @see Platform#getAutoIncrement()
73       */
74      public String getAutoIncrement()
75      {
76          return "";
77      }
78  
79      /***
80       * @see Platform#hasScale(String)
81       * TODO collect info for all platforms
82       */
83      public boolean hasScale(String sqlType)
84      {
85          if ("INT2".equalsIgnoreCase(sqlType)
86                  || "TEXT".equalsIgnoreCase(sqlType))
87          {
88              return false;
89          }
90          return true;
91      }
92  
93      /***
94       * @see Platform#hasSize(String)
95       * TODO collect info for all platforms
96       */
97      public boolean hasSize(String sqlType)
98      {
99          if ("INT2".equalsIgnoreCase(sqlType)
100                 || "TEXT".equalsIgnoreCase(sqlType))
101         {
102             return false;
103         }
104         return true;
105     }
106 }