@Target({METHOD,FIELD})
@Retention(RUNTIME)
public @interface MapKeyConvert
The MapKeyConvert annotation specifies that a named converter should be used
with the corresponding mapped attribute key column. The MapKeyConvert
annotation has the following reserved names:
- serialized: Will use a SerializedObjectConverter
on the associated mapping. When using a SerializedObjectConverter the
database representation is a binary field holding a serialized version of
the object and the object-model representation is a the actual object
- class-instance: Will use an ClassInstanceConverter
on the associated mapping. When using a ClassInstanceConverter the database
representation is a String representing the Class name and the object-model
representation is an instance of that class built with a no-args constructor
- none - Will place no converter on the associated mapping. This can be used
to override a situation where either another converter is defaulted or
another converter is set.
When these reserved converters are not used, it is necessary to define a
converter to use using the @Converter annotation.
- See Also:
Converter,
ObjectTypeConverter,
TypeConverter,
SerializedObjectConverter,
ClassInstanceConverter- Author:
- Guy Pelletier
- Since:
- EclipseLink 1.2