-
@Target({METHOD,FIELD}) @Retention(RUNTIME) public @interface ElementCollection
Declares a collection of instances of a basic type or embeddable class. Must be specified if the collection is to be mapped by means of a collection table.The
CollectionTable
annotation specifies a mapping to a database table.Example: {@snippet :
- Since:
- 2.0
- See Also:
CollectionTable
-
-
Optional Element Summary
Optional Elements Modifier and Type Optional Element Description FetchType
fetch
(Optional) Whether the collection should be lazily loaded or must be eagerly fetched.java.lang.Class<?>
targetClass
(Optional) The basic or embeddable class that is the element type of the collection.
-
-
-
Element Detail
-
targetClass
java.lang.Class<?> targetClass
(Optional) The basic or embeddable class that is the element type of the collection. This element is optional only if the collection field or property is defined using Java generics, and must be specified otherwise. It defaults to the parameterized type of the collection when defined using generics.- Default:
- void.class
-
-
-
fetch
FetchType fetch
(Optional) Whether the collection should be lazily loaded or must be eagerly fetched.- The
EAGER
strategy is a requirement on the persistence provider runtime that the associated entity must be eagerly fetched. - The
LAZY
strategy is a hint to the persistence provider runtime.
If not specified, defaults to
LAZY
.- Default:
- jakarta.persistence.FetchType.LAZY
- The
-
-