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.
IndexEntryAction	Logic to add or remove an index entry.
KeyStoreRefManager
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).
ProgressInfo

Exception Summary

Cumulus4jException
UnsupportedDataTypeException
WorkInProgressException

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.