Package org.hypergraphdb.event

Interface Summary

Interface	Description
HGEvent	This interface marks an object that is a HyperGraph event.
HGEventManager	A HGEventManager is bound to a single HyperGraph instance.
HGListener	A HGListener must be implemented in order to be receive notifications about HyperGraph events.

Class Summary

Class	Description
HGAtomAccessedEvent	This event is triggered every time an atom is accessed by its handle in HyperGraph.
HGAtomAddedEvent	This is triggered after a new atom, node or link, has been added to to HyperGraph.
HGAtomEvent	This is a base class for various atom related events.
HGAtomEvictEvent	An HGAtomEvictedEvent is triggered by the cache when an atom's run-time instance is removed from memory.
HGAtomLoadedEvent
HGAtomProposeEvent	Event triggered when a new atom is about to be added to the graph.
HGAtomRemovedEvent
HGAtomRemoveRequestEvent	A HGAtomRemoveRequestEvent is triggered when an attempt is made to remove an from HyperGraph, but before the removal process proceeds.
HGAtomReplacedEvent
HGAtomReplaceRequestEvent	A HGAtomReplaceRequestEvent is triggered when an attempt is made to replace the value of an existing atom within the HyperGraph, but before the replacement process proceeds.
HGClosingEvent	A HGClosingEvent is generated right before the closing and cleanup process of currently opened HyperGraph is initiated.
HGDefaultEventManager
HGEventBase
HGListenerAtom	This is a simple bean-like atom that can be used to register listeners that will be automatically loaded when a HyperGraph is open.
HGLoadPredefinedTypeEvent	This event is triggered by the type system when the run-time instance of a predefined type needs to be loaded in the cache.
HGOpenedEvent	A HGOpenedEvent is generated right after a new HyperGraph instance has been opened and fully initialized.
HGTransactionEndEvent	An event triggered upon completion (successful or not) of each transaction.
HGTransactionStartedEvent	An event triggered upon the start of every database transaction.

Enum Summary

Enum	Description
HGListener.Result

Exception Summary

Exception	Description
HGAtomRefusedException	This exception is thrown when an attempt to add a new atom to a HyperGraph instance failed.