View Javadoc
1   /*
2    * Copyright 2004-2022 the original author or authors.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *    https://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package com.ibatis.sqlmap.engine.type;
17  
18  import com.ibatis.sqlmap.client.extensions.ParameterSetter;
19  import com.ibatis.sqlmap.client.extensions.ResultGetter;
20  import com.ibatis.sqlmap.client.extensions.TypeHandlerCallback;
21  
22  import java.sql.CallableStatement;
23  import java.sql.PreparedStatement;
24  import java.sql.ResultSet;
25  import java.sql.SQLException;
26  
27  /**
28   * Custom type handler for adding a TypeHandlerCallback.
29   */
30  public class CustomTypeHandler extends BaseTypeHandler implements TypeHandler {
31  
32    /** The callback. */
33    private TypeHandlerCallback callback;
34  
35    /**
36     * Constructor to provide a TypeHandlerCallback instance.
37     *
38     * @param callback
39     *          - the TypeHandlerCallback instance
40     */
41    public CustomTypeHandler(TypeHandlerCallback callback) {
42      this.callback = callback;
43    }
44  
45    public void setParameter(PreparedStatement ps, int i, Object parameter, String jdbcType) throws SQLException {
46      ParameterSetter setter = new ParameterSetterImpl(ps, i);
47      callback.setParameter(setter, parameter);
48    }
49  
50    public Object getResult(ResultSet rs, String columnName) throws SQLException {
51      ResultGetter getter = new ResultGetterImpl(rs, columnName);
52      return callback.getResult(getter);
53    }
54  
55    public Object getResult(ResultSet rs, int columnIndex) throws SQLException {
56      ResultGetter getter = new ResultGetterImpl(rs, columnIndex);
57      return callback.getResult(getter);
58    }
59  
60    public Object getResult(CallableStatement cs, int columnIndex) throws SQLException {
61      ResultGetter getter = new ResultGetterImpl(new CallableStatementResultSet(cs), columnIndex);
62      return callback.getResult(getter);
63    }
64  
65    public Object valueOf(String s) {
66      return callback.valueOf(s);
67    }
68  
69  }