条件查询涉及多个级联连接

Question

我有三个实体：Block，View和TargetBlock，并希望为以下sql创建JPA Criteria查询。

select * from Block INNER JOIN TargetBlock tb ON tb.blockID = b.blockID INNER JOIN view v ON tb.viewID = v.viewID

Block有很多视图，有很多TargetBlocks。

Answer 1

有关Criteria API的文档，请参阅

http://wiki.eclipse.org/EclipseLink/UserGuide/JPA/Basic_JPA_Development/Querying/Criteria#Join