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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  package org.apache.commons.dbutils.handlers;
18  
19  import java.sql.ResultSet;
20  import java.sql.SQLException;
21  
22  import org.apache.commons.dbutils.RowProcessor;
23  
24  /**
25   * {@code ResultSetHandler} implementation that converts the
26   * {@code ResultSet} into a {@code List} of {@code Object[]}s.
27   * This class is thread safe.
28   *
29   * @see org.apache.commons.dbutils.ResultSetHandler
30   */
31  public class ArrayListHandler extends AbstractListHandler<Object[]> {
32  
33      /**
34       * The RowProcessor implementation to use when converting rows
35       * into Object[]s.
36       */
37      private final RowProcessor convert;
38  
39      /**
40       * Creates a new instance of ArrayListHandler using a
41       * {@code BasicRowProcessor} for conversions.
42       */
43      public ArrayListHandler() {
44          this(ArrayHandler.ROW_PROCESSOR);
45      }
46  
47      /**
48       * Creates a new instance of ArrayListHandler.
49       *
50       * @param convert The {@code RowProcessor} implementation
51       * to use when converting rows into Object[]s.
52       */
53      public ArrayListHandler(final RowProcessor convert) {
54          this.convert = convert;
55      }
56  
57  
58      /**
59       * Convert row's columns into an {@code Object[]}.
60       * @param resultSet {@code ResultSet} to process.
61       * @return {@code Object[]}, never {@code null}.
62       *
63       * @throws SQLException if a database access error occurs
64       * @see org.apache.commons.dbutils.handlers.AbstractListHandler#handle(ResultSet)
65       */
66      @Override
67      protected Object[] handleRow(final ResultSet resultSet) throws SQLException {
68          return this.convert.toArray(resultSet);
69      }
70  
71  }