Package org.apache.cayenne.access.types
Interface ValueObjectType<V,T>
- Type Parameters:
V
- type of user's custom object.T
- type that custom object will be serialized to/from should be backed by appropriateExtendedType
.
- All Known Implementing Classes:
BigIntegerValueType
,CharacterValueType
,LocalDateTimeValueType
,LocalDateValueType
,LocalTimeValueType
,UUIDValueType
public interface ValueObjectType<V,T>
Descriptor and serialization helper for custom value objects that can be safely stored in the DB.
Lightweight alternative for the
ExtendedType
.- Since:
- 4.0
-
Method Summary
Modifier and Type Method Description T
fromJavaObject(V object)
Class<T>
getTargetType()
Class<V>
getValueType()
String
toCacheKey(V object)
Returned value should be same for objects that is logically equal.V
toJavaObject(T value)
-
Method Details
-
getTargetType
- Returns:
- base type used to serialize V objects to.
-
getValueType
- Returns:
- type of Objects described by this ValueObjectType.
-
toJavaObject
- Parameters:
value
- of type T- Returns:
- java object
-
fromJavaObject
- Parameters:
object
- java object- Returns:
- value of type T
-
toCacheKey
Returned value should be same for objects that is logically equal.- Returns:
- String representation usable for cache.
-