1 /*
2 * Copyright 2016-2025 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 org.mybatis.dynamic.sql.util.spring;
17
18 import java.util.List;
19
20 import org.springframework.jdbc.core.namedparam.SqlParameterSource;
21 import org.springframework.jdbc.core.namedparam.SqlParameterSourceUtils;
22
23 /**
24 * Utility class for converting a list of rows to an array or SqlParameterSources.
25 *
26 * <p>This class is necessary due to the way that the library generates bindings for batch insert
27 * statements. The bindings will be of the form <code>:row.propertyName</code>. The <code>createBatch</code> method
28 * in this class will wrap all input rows in a class - RowHolder - with a single property named "row".
29 * This will allow the generated bindings to function properly with a Spring batch insert.
30 */
31 public class BatchInsertUtility {
32 private BatchInsertUtility() {}
33
34 public static <T> SqlParameterSource[] createBatch(List<T> rows) {
35 List<RowHolder<T>> tt = rows.stream()
36 .map(RowHolder::new)
37 .toList();
38
39 return SqlParameterSourceUtils.createBatch(tt);
40 }
41
42 public record RowHolder<T>(T row) {}
43 }