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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.shardingsphere.db.protocol.postgresql.packet.command.query;
19  
20  import lombok.Getter;
21  import org.apache.shardingsphere.db.protocol.postgresql.constant.PostgreSQLArrayColumnType;
22  import org.apache.shardingsphere.db.protocol.postgresql.constant.PostgreSQLValueFormat;
23  import org.apache.shardingsphere.db.protocol.postgresql.packet.command.query.extended.PostgreSQLColumnType;
24  
25  import java.sql.Types;
26  
27  /**
28   * Column description for PostgreSQL.
29   */
30  @Getter
31  public final class PostgreSQLColumnDescription {
32      
33      private final String columnName;
34      
35      private final int tableOID = 0;
36      
37      private final int columnIndex;
38      
39      private final int columnLength;
40      
41      private final int typeOID;
42      
43      private final int typeModifier = -1;
44      
45      private final int dataFormat;
46      
47      public PostgreSQLColumnDescription(final String columnName, final int columnIndex, final int columnType, final int columnLength, final String columnTypeName) {
48          this(columnName, columnIndex, columnType, columnLength, columnTypeName, PostgreSQLValueFormat.TEXT.getCode());
49      }
50      
51      public PostgreSQLColumnDescription(final String columnName, final int columnIndex, final int columnType, final int columnLength, final String columnTypeName, final int dataFormat) {
52          this.columnName = columnName;
53          this.columnIndex = columnIndex;
54          this.columnLength = columnLength;
55          this.dataFormat = dataFormat;
56          typeOID = Types.ARRAY == columnType ? PostgreSQLArrayColumnType.getTypeOid(columnTypeName) : PostgreSQLColumnType.valueOfJDBCType(columnType, columnTypeName).getValue();
57      }
58  }