Package org.cumulus4j.store

Cumulus4j is a plug-in for DataNucleus providing encrypted data-storage.

See:
Description

Class Summary

Cumulus4jConnectionFactory	Connection factory implementation for Cumulus4j-connections.
Cumulus4jIncrementGenerator	ValueGenerator implementation generating values by incrementing a counter.
Cumulus4jPersistenceHandler	Handler for all persistence calls from the StoreManager, communicating with the backend datastore(s).
Cumulus4jStoreManager	Store Manager for Cumulus4J operation.
DataNucleusObjectInputStream	A subclass of ObjectInputStream using the ClassLoaderResolver to load classes.
DummyCryptoManager	Dummy crypto-manager for debugging and testing.
EncryptionCoordinateSetManager	Manager for EncryptionCoordinateSet instances.
EncryptionHandler	Singleton per PersistenceManagerFactory handling the encryption and decryption and thus the key management.
ObjectContainerHelper	Helper class for replacing object-references when storing a 1-1- or 1-n- or m-n-relationship inside an ObjectContainer.
PersistenceManagerConnection	Connection to the underlying datastore(s).

Package org.cumulus4j.store Description

Cumulus4j is a plug-in for DataNucleus providing encrypted data-storage.

Most classes in this package are extensions using DataNucleus' extension-points in order to implement reading and writing of objects. DataNucleus uses the Eclipse extension mechanism. If you are not familiar with Eclipse extensions, start reading here: Eclipse FAQ What are extensions and extension points?

On one side, Cumulus4j is accessed by the frontend (i.e. the API consumer) via the following APIs:

• Object-oriented persistence via JDO or JPA.
• Key management API.

On the other side, Cumulus4j accesses the backend (i.e. another data storage) via a 2nd object-oriented persistence layer instance - more precisely an instance of PersistenceManagerFactory.