ObjectTypeConverter

```
@Target({TYPE,METHOD,FIELD})
@Retention(RUNTIME)
public @interface ObjectTypeConverter
```
The ObjectTypeConverter annotation is used to specify a TopLink org.eclipse.persistence.mappings.converters.ObjectTypeConverter that converts a fixed number of database data value(s) to Java object value(s) during the reading and writing of a mapped attribute An ObjectTypeConverter must be be uniquely identified by name and can be defined at the class, field and property level and can be specified within an Entity, MappedSuperclass and Embeddable class. The usage of an ObjectTypeConverter is specified via the Convert annotation and is supported on a Basic, or ElementCollection mapping.

Since:

Oracle TopLink 11.1.1.0.0

Author:

Guy Pelletier

See Also:

Convert

Required Element Summary

Required Elements
Modifier and Type	Required Element	Description
`ConversionValue[]`	`conversionValues`	(Required) Specify the conversion values to be used with the object converter.
`java.lang.String`	`name`	(Required) Name this converter.

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`java.lang.Class`	`dataType`	(Optional) Specify the type stored on the database.
`java.lang.String`	`defaultObjectValue`	(Optional) Specify a default object value.
`java.lang.Class`	`objectType`	(Optional) Specify the type stored on the entity.

- Element Detail
  - name
```
java.lang.String name
```
    (Required) Name this converter. The name should be unique across the whole persistence unit.
- - conversionValues
```
ConversionValue[] conversionValues
```
    (Required) Specify the conversion values to be used with the object converter.
- - dataType
```
java.lang.Class dataType
```
    (Optional) Specify the type stored on the database. The default is inferred from the type of the persistence field or property.
    
    Default:
    
    void.class
- - objectType
```
java.lang.Class objectType
```
    (Optional) Specify the type stored on the entity. The default is inferred from the type of the persistent field or property.
    
    Default:
    
    void.class
- - defaultObjectValue
```
java.lang.String defaultObjectValue
```
    (Optional) Specify a default object value. Used for legacy data if the data value is missing.
    
    Default:
    
    ""