Searching An object from @ElementCollection

Question

I am using Spring Data JPA.

I an entity like this

public class A {

    @CollectionTable(name = \"B_ITEMS\", joinColumns = @JoinColumn(name = \"B_ID\"))
         


        

Answer 1

@ElementCollection is just a simple way to map a @OneToMany relation.

As such you can join them as usual:

public interface ARepo extends PagingAndSortingRepository {
    @Query("select a from A a join a.bs b where b.prop1 = :prop1 and ...")
    A findByProps(@Param("prop1") String prop1)
}