gate.util.persistence
Interface Persistence
- All Superinterfaces:
- Serializable
- All Known Implementing Classes:
- DSPersistence, MapPersistence, gate.util.persistence.ResourcePersistence, PersistenceManager.SlashDevSlashNull, PersistenceManager.URLHolder, CollectionPersistence
- public interface Persistence
- extends Serializable
Defines an object that holds persistent data about another object.
Storing an arbitrary object will consist of creating an appropiate
Persistence object for it and storing that one (via serialisation).
Restoring a previously saved object will consist of restoring the persistence
object and using the data it stores to create a new object that is as similar
as possible to the original object.
extractDataFromSource
public void extractDataFromSource(Object source)
throws PersistenceException
- Populates this Persistence with the data that needs to be stored from the
original source object.
createObject
public Object createObject()
throws PersistenceException,
ResourceInstantiationException
- Creates a new object from the data contained. This new object is supposed
to be a copy for the original object used as source for data extraction.