001/*
002 *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
003 *  <p>
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *  <p>
008 *  http://www.apache.org/licenses/LICENSE-2.0
009 *  <p>
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016
017package com.mybatisflex.core.logicdelete.impl;
018
019import com.mybatisflex.core.dialect.IDialect;
020import com.mybatisflex.core.exception.FlexAssert;
021import com.mybatisflex.core.logicdelete.NullableColumnLogicDeleteProcessor;
022import com.mybatisflex.core.table.IdInfo;
023import com.mybatisflex.core.table.TableInfo;
024
025import java.util.List;
026
027import static com.mybatisflex.core.constant.SqlConsts.EQUALS;
028
029/**
030 * 主键逻辑删除处理器。
031 *
032 * @author 王帅
033 * @see <a href="https://gitee.com/mybatis-flex/mybatis-flex/issues/I7O1VV">I7O1VV</a>
034 * @since 2023-07-26
035 */
036public class PrimaryKeyLogicDeleteProcessor extends NullableColumnLogicDeleteProcessor {
037
038    @Override
039    public String buildLogicDeletedSet(String logicColumn, TableInfo tableInfo, IDialect dialect) {
040        List<IdInfo> primaryKeys = tableInfo.getPrimaryKeyList();
041        FlexAssert.notEmpty(primaryKeys, "primaryKeys");
042        String column = primaryKeys.get(0).getColumn();
043        return dialect.wrap(logicColumn) + EQUALS + dialect.wrap(column);
044    }
045
046    /**
047     * 逻辑删除后，则更新逻辑删除字段值为主键的值。
048     */
049    @Override
050    public Object getLogicDeletedValue() {
051        return null;
052    }
053
054}