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add BaseMapper.updateSelective

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Timi
2025-11-02 20:59:27 +08:00
parent 278bf7c59a
commit 1688666dca
2 changed files with 41 additions and 1 deletions
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3
src/main/java/com/imyeyu/spring/mapper/BaseMapper.java
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@ -93,6 +93,9 @@ public interface BaseMapper<T, P> {
@UpdateProvider(type = SQLProvider.class, method = "update")
void update(T t);
@UpdateProvider(type = SQLProvider.class, method = "updateSelective")
void updateSelective(T t);
/**
* 软删除
*

37
src/main/java/com/imyeyu/spring/util/SQLProvider.java
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@ -9,6 +9,7 @@ import com.imyeyu.spring.annotation.table.Column;
import com.imyeyu.spring.annotation.table.Id;
import com.imyeyu.spring.annotation.table.Table;
import com.imyeyu.spring.annotation.table.Transient;
import com.imyeyu.spring.entity.BaseEntity;
import com.imyeyu.spring.entity.Creatable;
import com.imyeyu.spring.entity.Deletable;
import com.imyeyu.spring.entity.Destroyable;
@ -189,6 +190,42 @@ public class SQLProvider {
return "UPDATE `%s` SET %s WHERE `%s` = #{%s}".formatted(meta.table, setClause, meta.idFieldColumn.columnName, meta.idFieldColumn.fieldName);
}
/**
* 根据 ID 更新，选择性更新非空属性，需要实体实现 {@link Updatable}
*
* @param entity 实体
* @return SQL
*/
public String updateSelective(Object entity) {
EntityMeta meta = getEntityMeta(entity.getClass());
TimiException.required(meta.idFieldColumn, "not found id field in %s".formatted(meta.entityClass));
TimiException.required(meta.canUpdate, "not allow update for %s".formatted(meta.entityClass));
if (entity instanceof BaseEntity baseEntity) {
baseEntity.setCreatedAt(null);
baseEntity.setDeletedAt(null);
}
String setClause = meta.fieldColumnList.stream()
.filter(fc -> {
if (fc.isId) {
return false;
}
try {
return Ref.getFieldValue(entity, fc.field, Object.class) != null;
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
})
.map(fc -> {
if (entity instanceof Updatable updatableEntity) {
updatableEntity.setUpdatedAt(Time.now());
}
return "`%s` = #{%s}".formatted(fc.columnName, fc.fieldName);
})
.collect(Collectors.joining(", "));
return "UPDATE `%s` SET %s WHERE `%s` = #{%s}".formatted(meta.table, setClause, meta.idFieldColumn.columnName, meta.idFieldColumn.fieldName);
}
/**
* 根据 ID 软删除，需要实体实现 {@link Deletable}
*