gboat2.base.core.annotation
注释类型 Relations

@Retention(value=RUNTIME)
@Target(value=TYPE)
public @interface Relations

作用于 VO 类，进行数据库多表关联查询时，通过该注解标识各表间的关联关系。如：

 @Relations(base = BidNoticeItem.class, value = {
     @Relation(refer = BidNotice.class, referColumn = "bidNoticeId", baseColumn = "noticeId", type = RelationType.LEFT),
     @Relation(refer = ProjectInfo.class, referColumn = "projectId", base = BidNotice.class, baseColumn = "projectId", type = RelationType.LEFT),
     @Relation(refer = BidPackage.class, referColumn = "packageId", baseColumn = "packageId", type = RelationType.LEFT)
 })
 public class TenderNoticeVO extends BidNotice {
     … …
 }
 

从以下版本开始：

3.0

作者：

lysming, 何明旺

另请参见：

Relation

必需元素摘要

Class<?>	base
Relation[]	value

元素详细信息

base

public abstract Class<?> base

返回：

主表对应的 PO 类

value

public abstract Relation[] value

返回：

多表之间的关联关系