jdoNewObjectIdInstance(o) - JDO PersistenceCapable's method
Method javax.jdo.spi.PersistenceCapable
Object jdoNewObjectIdInstance(
Object o
)
Create a new instance of the class used for JDO identity, using the key constructor of the object id class. It is intended for single field identity. The identity instance returned has no relationship with the values of the primary key fields of the persistence-capable instance on which the method is called. If the key is the wrong class for the object id class, null is returned.
For classes that use single field identity, if the parameter is of one of the following types, the behavior must be as specified:
NumberorCharacter: the parameter must be the single field type or the wrapper class of the primitive field type; the parameter is passed to the single field identity constructorObjectIdFieldSupplier: the field value is fetched from theObjectIdFieldSupplierand passed to the single field identity constructorString: the String is passed to the single field identity constructor
- Parameters:
-
o- the object identity constructor parameter
- Returns:
- the new instance created.
- Since:
- JDO 2.0
