Annotation Interface MappedCollection

@Retention(RUNTIME)
@Target({FIELD,METHOD,ANNOTATION_TYPE})
@Documented
public @interface MappedCollection

The annotation to configure the mapping for a List, Set or Map property in the database.

Since:

1.1

Author:

Bastian Wilhelm, Mark Paluch

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element	Description
String	idColumn	The column name for id column in the corresponding relationship table.
String	keyColumn	The column name for key columns of List or Map collections in the corresponding relationship table.

Element Details

idColumn

String idColumn

The column name for id column in the corresponding relationship table. The attribute supports Value Expressions to dynamically obtain the column name on a per-operation basis. Defaults to NamingStrategy usage if the value is empty. Expressions returning a String are sanitized prior usage. Expressions can also return a SqlIdentifier directly that is used as-is without further sanitization.

See Also:

• NamingStrategy.getReverseColumnName(RelationalPersistentProperty)

Default:

""

keyColumn

String keyColumn

The column name for key columns of List or Map collections in the corresponding relationship table. The attribute supports Value Expressions to dynamically obtain the column name on a per-operation basis. Defaults to NamingStrategy usage if the value is empty. Expressions returning a String are sanitized prior usage. Expressions can also return a SqlIdentifier directly that is used as-is without further sanitization.

See Also:

• NamingStrategy.getKeyColumn(RelationalPersistentProperty)

Default:

""