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.infra.merge.result.impl.memory;
19
20 import com.google.common.base.Preconditions;
21 import lombok.RequiredArgsConstructor;
22 import org.apache.shardingsphere.infra.executor.sql.execute.result.query.QueryResult;
23
24 import java.sql.SQLException;
25
26 /**
27 * Memory query result row.
28 */
29 @RequiredArgsConstructor
30 public final class MemoryQueryResultRow {
31
32 private final Object[] data;
33
34 public MemoryQueryResultRow(final QueryResult queryResult) throws SQLException {
35 data = load(queryResult);
36 }
37
38 private Object[] load(final QueryResult queryResult) throws SQLException {
39 int columnCount = queryResult.getMetaData().getColumnCount();
40 Object[] result = new Object[columnCount];
41 for (int i = 0; i < columnCount; i++) {
42 result[i] = queryResult.getValue(i + 1, Object.class);
43 }
44 return result;
45 }
46
47 /**
48 * Get data from cell.
49 *
50 * @param columnIndex column index
51 * @return data from cell
52 */
53 public Object getCell(final int columnIndex) {
54 Preconditions.checkArgument(columnIndex > 0 && columnIndex < data.length + 1);
55 return data[columnIndex - 1];
56 }
57
58 /**
59 * Set data for cell.
60 *
61 * @param columnIndex column index
62 * @param value data for cell
63 */
64 public void setCell(final int columnIndex, final Object value) {
65 Preconditions.checkArgument(columnIndex > 0 && columnIndex < data.length + 1);
66 data[columnIndex - 1] = value;
67 }
68 }