com.power4j.fist.boot.mybaits.migrate.ColumnResolver Maven / Gradle / Ivy
/*
* Copyright 2024. ChenJun ([email protected] & https://github.com/John-Chan)
*
* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE 3.0;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.gnu.org/licenses/lgpl.html
*
* 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 com.power4j.fist.boot.mybaits.migrate;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.power4j.fist.boot.mybaits.crud.repository.Repository;
import java.io.Serializable;
import java.util.function.BiConsumer;
/**
* @author CJ ([email protected])
* @since 1.0
*/
public class ColumnResolver implements UniqueResolver {
private final Repository repository;
private final BiConsumer> queryBuilder;
public static ColumnResolver of(Repository repository,
BiConsumer> queryBuilder) {
return new ColumnResolver<>(repository, queryBuilder);
}
public ColumnResolver(Repository repository,
BiConsumer> queryBuilder) {
this.queryBuilder = queryBuilder;
this.repository = repository;
}
@Override
public boolean exists(T example) {
return repository.countBy(applyQuery(example)) > 0;
}
@Override
public void remove(T example) {
repository.deleteAllBy(applyQuery(example));
}
protected LambdaQueryWrapper applyQuery(T example) {
LambdaQueryWrapper queryWrapper = repository.lambdaWrapper();
queryBuilder.accept(example, queryWrapper);
return queryWrapper;
}
}