javax.persistence
Annotation Type ElementCollection

@Target(value={METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface ElementCollection

The ElementCollection annotation defines a collection of instances of a basic type or embeddable class. The ElementCollection annotation (or equivalent XML element) must be specified if the collection is to be mapped by means of a collection table.

Since:

JPA 2.0 version.

Author:

Florent Benoit

See Also:

JPA 2.0 specification

Optional Element Summary

FetchType	fetch (Optional) Whether the collection should be lazily loaded or must be eagerly fetched.
Class	targetClass (Optional) The basic or embeddable class that is the element type of the collection.

targetClass

public abstract Class targetClass

(Optional) The basic or embeddable class that is the element type of the collection. Optional only if the collection field or property is defined using Java generics. Must be specified otherwise.

Default:

void.class

fetch

public abstract FetchType fetch

(Optional) Whether the collection should be lazily loaded or must be eagerly fetched. The EAGER strategy is a requirement on the per- sistence provider runtime that the collection elements must be eagerly fetched. The LAZY strategy is a hint to the persistence provider runtime.

Default:

javax.persistence.FetchType.LAZY