add BaseMapper.deleteAllByExample

This commit is contained in:
Timi
2025-12-01 11:13:36 +08:00
parent 23598242f0
commit 745b3acfef
4 changed files with 76 additions and 4 deletions

View File

@ -0,0 +1,32 @@
package com.imyeyu.spring.annotation.table;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* @author 夜雨
* @since 2025-12-01 10:56
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface DeleteColumn {
Type value() default Type.UNIX;
/**
*
*
* @author 夜雨
* @since 2025-12-01 10:57
*/
enum Type {
UNIX,
DATE,
DATE_TIME
}
}

View File

@ -1,5 +1,6 @@
package com.imyeyu.spring.entity;
import com.imyeyu.spring.annotation.table.DeleteColumn;
import com.imyeyu.utils.Time;
import java.io.Serializable;
@ -19,6 +20,7 @@ public class BaseEntity implements Serializable, Creatable, Updatable, Deletable
protected Long updatedAt;
/** 删除时间 */
@DeleteColumn
protected Long deletedAt;
/**

View File

@ -31,13 +31,13 @@ public interface BaseMapper<T, P> {
DESC
}
static final String NOT_DELETE = " AND `deleted_at` IS NULL ";
String NOT_DELETE = " AND `deleted_at` IS NULL ";
static final String LIMIT_1 = " LIMIT 1";
String LIMIT_1 = " LIMIT 1";
static final String UNIX_TIME = " FLOOR(UNIX_TIMESTAMP(NOW(3)) * 1000) ";
String UNIX_TIME = " FLOOR(UNIX_TIMESTAMP(NOW(3)) * 1000) ";
static final String PAGE = NOT_DELETE + " LIMIT #{offset}, #{limit}";
String PAGE = NOT_DELETE + " LIMIT #{offset}, #{limit}";
/**
* 统计数据量
@ -107,6 +107,9 @@ public interface BaseMapper<T, P> {
@UpdateProvider(type = SQLProvider.class, method = "delete")
void delete(P id);
@UpdateProvider(type = SQLProvider.class, method = "deleteAllByExample")
void deleteAllByExample(T t);
/**
* 销毁(物理删除)
*

View File

@ -6,6 +6,7 @@ import com.imyeyu.java.bean.timi.TimiException;
import com.imyeyu.java.ref.Ref;
import com.imyeyu.spring.annotation.table.AutoUUID;
import com.imyeyu.spring.annotation.table.Column;
import com.imyeyu.spring.annotation.table.DeleteColumn;
import com.imyeyu.spring.annotation.table.Id;
import com.imyeyu.spring.annotation.table.Table;
import com.imyeyu.spring.annotation.table.Transient;
@ -23,6 +24,7 @@ import java.lang.reflect.Field;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.UUID;
@ -232,6 +234,29 @@ public class SQLProvider {
return "UPDATE `%s` SET `deleted_at` = %s WHERE `%s` = #{id}".formatted(meta.table, Time.now(), meta.idFieldColumn.columnName);
}
public String deleteAllByExample(Object entity) {
EntityMeta meta = getEntityMeta(entity.getClass());
TimiException.required(meta.canDelete, "not allow delete for %s".formatted(meta.entityClass));
FieldColumn deleteColumn = meta.getFieldColumnList().stream().filter(fc -> fc.isDeleteColumn).findFirst().orElse(null);
TimiException.required(deleteColumn, "unknown delete column, use com.imyeyu.spring.annotation.table.DeleteColumn annotation on field");
assert deleteColumn != null;
assert deleteColumn.deleteColumnType != null;
String delClause = meta.fieldColumnList.stream()
.filter(FieldColumn::isNotId)
.filter(fc -> fc.isNotNull(entity))
.map(fc -> "`%s` = #{%s}".formatted(fc.columnName, fc.fieldName))
.collect(Collectors.joining(" AND "));
StringBuilder sql = new StringBuilder("UPDATE `%s` SET `%s` = ".formatted(meta.table, deleteColumn.getColumnName()));
sql.append("'").append(switch (deleteColumn.deleteColumnType) {
case UNIX -> Time.now();
case DATE, DATE_TIME -> new Date();
}).append("'");
sql.append(" WHERE ").append(delClause);
return sql.toString();
}
/**
* 硬删除,需要实体实现 {@link Destroyable}
*
@ -419,6 +444,10 @@ public class SQLProvider {
final boolean isAutoUpperUUID;
final boolean isDeleteColumn;
final DeleteColumn.Type deleteColumnType;
public FieldColumn(Field field) {
this.field = field;
@ -437,6 +466,12 @@ public class SQLProvider {
} else {
isAutoUpperUUID = false;
}
isDeleteColumn = field.isAnnotationPresent(DeleteColumn.class);
if (isDeleteColumn) {
deleteColumnType = field.getAnnotation(DeleteColumn.class).value();
} else {
deleteColumnType = null;
}
}
public boolean isNull(Object entity) {