javax.persistence
Annotation Type OneToMany


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

Defines a many-valued association with one-to-many multiplicity. If the collection is defined using generics to specify the element type, the associated target entity type need not be specified; otherwise the target entity class must be specified.

Author:
Emmanuel Bernard

Optional Element Summary
 CascadeType[] cascade
          The operations that must be cascaded to the target of the association.
 FetchType fetch
          Whether the association should be lazily loaded or must be eagerly fetched.
 String mappedBy
          The field that owns the relationship.
 Class targetEntity
          The entity class that is the target of the association.
 

targetEntity

public abstract Class targetEntity
The entity class that is the target of the association. Optional only if the collection property is defined using Java generics. Must be specified otherwise. Defaults to the parameterized type of the collection when defined using generics.

Default:
void.class

cascade

public abstract CascadeType[] cascade
The operations that must be cascaded to the target of the association. Defaults to no operations being cascaded.

Default:
{}

fetch

public abstract FetchType fetch
Whether the association should be lazily loaded or must be eagerly fetched. The EAGER strategy is a requirement on the persistenceprovider runtime that the associatedentities must be eagerly fetched. The LAZY strategy is a hint to the persistence provider runtime.

Default:
javax.persistence.FetchType.LAZY

mappedBy

public abstract String mappedBy
The field that owns the relationship. Required unless the relationship is unidirectional.

Default:
""