space.lingu.light.ForeignKey Maven / Gradle / Ivy
/*
* Copyright (C) 2022 Lingu Light Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package space.lingu.light;
import java.lang.annotation.*;
/**
* Foreign key. Not available yet.
*
* @author RollW
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(value = {ElementType.FIELD})
@LightExperimentalApi
public @interface ForeignKey {
Class entity();
String[] parentColumns();
String[] childColumns();
Action onDelete() default Action.NO_ACTION;
Action onUpdate() default Action.NO_ACTION;
/**
* @author RollW
*/
enum Action {
NO_ACTION,
RESTRICT,
SET_NULL,
SET_DEFAULT,
CASCADE;
}
}