[hibernate-issues] [Hibernate-JIRA] Created: (ANN-836) Availability of @CollectionId in Maps
Availability of @CollectionId in Maps
----------------------------------------
Key: ANN-836
URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-836
Project: Hibernate Annotations
Issue Type: Improvement
Affects Versions: 3.4.0.GA
Reporter: Vlasov Igor
Hello, I have table
user(
id number(10)
name varchar(50)
)
and table
user_right(
id number(10)
name varchar(50)
key varchar(50)
)
then i want to tie together "user" and "user_right" in table:
rl_user_right(
rl_id number(10)
usr_id number(10)
ur_id number(10)
)
I can do this in such manner
@OneToMany(fetch = FetchType.LAZY)
@JoinTable(name = "rl_user_right",
joinColumns = @JoinColumn(name = "usr_id"),
inverseJoinColumns = @JoinColumn(name = "ur_id"))
@CollectionId(columns = @Column(name = "rl_id"),
type = @org.hibernate.annotations.Type(type = "long"), generator =
"identity")
@org.hibernate.annotations.Fetch(org.hibernate.annotations.FetchMode.SUBSELECT)
private List<UserRight> rights;
BUT i want to have property of Map type : private Map<String,UserRight> rights;
with "key" value =user_right.key
I try to do :
@OneToMany(fetch = FetchType.LAZY)
@JoinTable(name = "rl_user_right",
joinColumns = @JoinColumn(name = "usr_id"),
inverseJoinColumns = @JoinColumn(name = "ur_id"))
@javax.persistence.MapKey(name="ur_key")
@CollectionId(columns = @Column(name = "rl_id"),
type = @org.hibernate.annotations.Type(type = "long"), generator =
"identity")
@org.hibernate.annotations.Fetch(org.hibernate.annotations.FetchMode.SUBSELECT)
private Map<String,UserRight> rights;
Then i catch an exception Map do not support @CollectionId: com.entity.User.rights;
org.hibernate.cfg.annotations.CollectionBinder.getCollectionBinder
.....
if ( java.util.Map.class.equals( returnedClass ) ) {
if ( property.isAnnotationPresent( CollectionId.class ) ) {
throw new AnnotationException( "Map do not support @CollectionId: "
+ StringHelper.qualify( entityName, property.getName() ) );
}
return new MapBinder();
}
How can I achieve my desire with another way?
May be allow @CollectionId in Maps?
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