Package org.lacibus.backingstore

This package contains an implementation of a source of items and triples that uses local files, and a source connector that can be used by a triple store to connect to that source.

See: Description

Class Summary

Class	Description
FileBackingStore	A backing store implemented by files on disc that maintains transactional record integrity on system re-start.
FiledHighestIdentifier	A highest identifier that can be safely restored after a restart because a safe value of it is stored in a filesystem
FileSourceConnector	An instance of this class is a connector to a file backing store that acts as a source of items and triples.
FileTransaction	An instance of this class is a transaction carried out on a file backing store.

Exception Summary

Exception	Description
FileSourceConnectorException	An exception that indicates an error in the operation of a file source connector.

Package org.lacibus.backingstore Description

This package contains an implementation of a source of items and triples that uses local files, and a source connector that can be used by a triple store to connect to that source.

The implementation stores items and small triples in a single main file. Summaries of triples with large objects are stored in the main file, and each large object is stored in a separate file. The implementation includes a transaction manager for transactions that modify the store in order to maintain transactional record integrity on system re-start.

The source and source connector support java backing store and backing store client interfaces that might also be used by other local source implementations.