Package org.lacibus.triplestore

This package contains the classes for the fundamental entities of a virtual data lake: its triple store, items, triples, datums, access levels, and store sessions.

See: Description

Interface Summary

Interface	Description
SourceUser	An implementation of this interface connects the triple store to sources in order to use their data.

Class Summary

Class	Description
AccessLevel	An access level determines which users can access what data.
AccessLevelRelationsStatus	An instance of this class gives the explicit and implicit relationships between the access levels of a triple store and the permissions that have been granted for levels to be superior or inferior to other levels.
Datum	An instance of this class represents a data value that can be the object of a triple.
Id	An instance of this class is an identifier that can identify an item or a triple.
Item	An item generally represents something, and can be the subject, verb, or object of a triple.
LexicalDatumComparator	A Datum comparator that compares text datums lexicographically.
Logger
SessionIssuer	An instance of this class issues store sessions.
StoreSession	A session of interactions with a triple store.
Transaction	A set of operations that change the data in a source, and that should be performed together, with none being performed unless all are performed.
Triple	A triple consists of a subject that is an item, a verb that is also an item, and an object that is a Datum.
TripleStore	A triple store holds items and triples from the sources to which it is connected.

Enum Summary

Enum	Description
Datum.Type	The possible types that a datum can have

Exception Summary

Exception	Description
NotInOperationException	An exception thrown when an attempt is made to use the triple store, but the store is not in operation.
TripleStoreFatalException	An exception that is thrown when an error occurs that is so serious that triple store can no longer be used.
TripleStoreNonFatalException	An exception that is thrown when an error occurs but the triple store can still be used.

Package org.lacibus.triplestore Description

This package contains the classes for the fundamental entities of a virtual data lake: its triple store, items, triples, datums, access levels, and store sessions.