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;
17
18 import java.util.Optional;
19
20 import org.jspecify.annotations.Nullable;
21
22 /**
23 * Describes a column with a known data type. The type is only used by the compiler to assure type safety
24 * when building clauses with conditions.
25 *
26 * @author Jeff Butler
27 *
28 * @param <T>
29 * - the Java type that corresponds to this column
30 */
31 public interface BindableColumn<T> extends BasicColumn {
32
33 /**
34 * Override the base method definition to make it more specific to this interface.
35 */
36 @Override
37 BindableColumn<T> as(String alias);
38
39 default @Nullable Object convertParameterType(T value) {
40 return value;
41 }
42
43 default Optional<Class<T>> javaType() {
44 return Optional.empty();
45 }
46 }