How to check discriminator type in named query in jpa eclipse link

Question

I want to check discriminator type in jpa named query like any other attribute.

How can I check?

score 1 · Answer 1 · answered Jun 08 '15 at 13:37

1

Use TYPE in JPA 2.0: "select p from Employee e join e.projects p where type(p) = LargeProject"

answered Jun 08 '15 at 13:37

Chris

score 1 · Answer 2 · edited May 23 '17 at 12:09

Use the JPA TYPE() so a Query could look like this:

SELECT s FROM Superclass s WHERE TYPE(s) = Superclass

This will compare the value set as DiscriminatorValue, so it acts like instanceof.

2 Answers2