mirror of https://github.com/elunez/eladmin
270 lines
8.2 KiB
Java
270 lines
8.2 KiB
Java
/*
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* Copyright (c) 2011-2020, baomidou (jobob@qq.com).
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* <p>
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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* <p>
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* https://www.apache.org/licenses/LICENSE-2.0
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* <p>
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package me.zhengjie.db.mybatis;
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import com.baomidou.mybatisplus.annotation.FieldFill;
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import com.baomidou.mybatisplus.annotation.FieldStrategy;
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import com.baomidou.mybatisplus.annotation.TableField;
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import org.apache.ibatis.type.JdbcType;
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import org.apache.ibatis.type.TypeHandler;
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import org.apache.ibatis.type.UnknownTypeHandler;
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import java.lang.annotation.Annotation;
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/**
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* JPA 转换使用 javax.persistence.Column
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*
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* @author liaojinlong
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* @since 2020/6/28 14:11
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*/
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public class TableFieldImp implements TableField {
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private String value = "";
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private Class<? extends Annotation> annotationType;
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private boolean exist = true;
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private String condition = "";
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private FieldStrategy insertStrategy = FieldStrategy.DEFAULT;
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private String update = "";
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private FieldStrategy updateStrategy = FieldStrategy.DEFAULT;
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private FieldStrategy whereStrategy = FieldStrategy.DEFAULT;
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private FieldFill fill = FieldFill.DEFAULT;
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private boolean select = true;
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private boolean keepGlobalFormat = false;
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private JdbcType jdbcType = JdbcType.UNDEFINED;
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private Class<? extends TypeHandler> typeHandler = UnknownTypeHandler.class;
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private String numericScale = "";
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/**
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* 数据库字段值,
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* 不需要配置该值的情况:
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* <li> 当 {@link com.baomidou.mybatisplus.core.MybatisConfiguration#mapUnderscoreToCamelCase} 为 true 时,
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* (mp下默认是true,mybatis默认是false), 数据库字段值.replace("_","").toUpperCase() == 实体属性名.toUpperCase() </li>
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* <li> 当 {@link com.baomidou.mybatisplus.core.MybatisConfiguration#mapUnderscoreToCamelCase} 为 false 时,
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* 数据库字段值.toUpperCase() == 实体属性名.toUpperCase()</li>
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*/
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@Override
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public String value() {
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return value;
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}
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/**
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* 是否为数据库表字段
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* 默认 true 存在，false 不存在
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*/
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@Override
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public boolean exist() {
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return exist;
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}
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/**
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* 字段 where 实体查询比较条件
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* 默认 `=` 等值
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*/
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@Override
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public String condition() {
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return condition;
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}
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/**
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* 字段 update set 部分注入, 该注解优于 el 注解使用
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* <p>
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* 例1：@TableField(.. , update="%s+1") 其中 %s 会填充为字段
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* 输出 SQL 为：update 表 set 字段=字段+1 where ...
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* <p>
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* 例2：@TableField(.. , update="now()") 使用数据库时间
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* 输出 SQL 为：update 表 set 字段=now() where ...
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*/
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@Override
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public String update() {
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return update;
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}
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/**
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* 字段验证策略之 insert: 当insert操作时，该字段拼接insert语句时的策略
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* IGNORED: 直接拼接 insert into table_a(column) values (#{columnProperty});
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* NOT_NULL: insert into table_a(<if test="columnProperty != null">column</if>) values (<if test="columnProperty != null">#{columnProperty}</if>)
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* NOT_EMPTY: insert into table_a(<if test="columnProperty != null and columnProperty!=''">column</if>) values (<if test="columnProperty != null and columnProperty!=''">#{columnProperty}</if>)
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*
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* @since 3.1.2
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*/
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@Override
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public FieldStrategy insertStrategy() {
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return insertStrategy;
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}
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/**
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* 字段验证策略之 update: 当更新操作时，该字段拼接set语句时的策略
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* IGNORED: 直接拼接 update table_a set column=#{columnProperty}, 属性为null/空string都会被set进去
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* NOT_NULL: update table_a set <if test="columnProperty != null">column=#{columnProperty}</if>
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* NOT_EMPTY: update table_a set <if test="columnProperty != null and columnProperty!=''">column=#{columnProperty}</if>
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*
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* @since 3.1.2
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*/
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@Override
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public FieldStrategy updateStrategy() {
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return updateStrategy;
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}
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/**
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* 字段验证策略之 where: 表示该字段在拼接where条件时的策略
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* IGNORED: 直接拼接 column=#{columnProperty}
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* NOT_NULL: <if test="columnProperty != null">column=#{columnProperty}</if>
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* NOT_EMPTY: <if test="columnProperty != null and columnProperty!=''">column=#{columnProperty}</if>
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*
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* @since 3.1.2
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*/
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@Override
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public FieldStrategy whereStrategy() {
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return whereStrategy;
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}
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/**
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* 字段自动填充策略
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*/
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@Override
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public FieldFill fill() {
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return fill;
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}
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/**
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* 是否进行 select 查询
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* <p>大字段可设置为 false 不加入 select 查询范围</p>
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*/
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@Override
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public boolean select() {
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return select;
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}
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/**
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* 是否保持使用全局的 Format 的值
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* <p> 只生效于 既设置了全局的 Format 也设置了上面 {@link #value()} 的值 </p>
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* <li> 如果是 false , 全局的 Format 不生效 </li>
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*
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* @since 3.1.1
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*/
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@Override
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public boolean keepGlobalFormat() {
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return keepGlobalFormat;
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}
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/**
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* JDBC类型 (该默认值不代表会按照该值生效),
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* 只生效与 mp 自动注入的 method,
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* 建议配合 {@link TableName#autoResultMap()} 一起使用
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* <p>
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* {@link ResultMapping#jdbcType} and {@link ParameterMapping#jdbcType}
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*
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* @since 3.1.2
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*/
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@Override
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public JdbcType jdbcType() {
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return jdbcType;
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}
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/**
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* 类型处理器 (该默认值不代表会按照该值生效),
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* 只生效与 mp 自动注入的 method,
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* 建议配合 {@link TableName#autoResultMap()} 一起使用
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* <p>
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* {@link ResultMapping#typeHandler} and {@link ParameterMapping#typeHandler}
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*
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* @since 3.1.2
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*/
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@Override
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public Class<? extends TypeHandler> typeHandler() {
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return typeHandler;
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}
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/**
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* 指定小数点后保留的位数,
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* 只生效与 mp 自动注入的 method,
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* 建议配合 {@link TableName#autoResultMap()} 一起使用
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* <p>
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* {@link ParameterMapping#numericScale}
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*
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* @since 3.1.2
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*/
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@Override
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public String numericScale() {
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return numericScale;
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}
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/**
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* Returns the annotation type of this annotation.
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*
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* @return the annotation type of this annotation
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*/
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@Override
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public Class<? extends Annotation> annotationType() {
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return annotationType;
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}
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public void setValue(String value) {
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this.value = value;
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}
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public void setAnnotationType(Class<? extends Annotation> annotationType) {
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this.annotationType = annotationType;
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}
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public void setExist(boolean exist) {
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this.exist = exist;
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}
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public void setCondition(String condition) {
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this.condition = condition;
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}
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public void setInsertStrategy(FieldStrategy insertStrategy) {
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this.insertStrategy = insertStrategy;
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}
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public void setUpdate(String update) {
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this.update = update;
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}
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public void setUpdateStrategy(FieldStrategy updateStrategy) {
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this.updateStrategy = updateStrategy;
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}
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public void setWhereStrategy(FieldStrategy whereStrategy) {
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this.whereStrategy = whereStrategy;
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}
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public void setFill(FieldFill fill) {
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this.fill = fill;
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}
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public void setSelect(boolean select) {
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this.select = select;
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}
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public void setKeepGlobalFormat(boolean keepGlobalFormat) {
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this.keepGlobalFormat = keepGlobalFormat;
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}
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public void setJdbcType(JdbcType jdbcType) {
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this.jdbcType = jdbcType;
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}
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public void setTypeHandler(Class<? extends TypeHandler> typeHandler) {
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this.typeHandler = typeHandler;
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}
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public void setNumericScale(String numericScale) {
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this.numericScale = numericScale;
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}
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}
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