Inheritance diagram for opencog::SQLBackingStore:

Collaboration diagram for opencog::SQLBackingStore:

Public Member Functions
	SQLBackingStore ()

void	set_store (AtomStorage *)

virtual NodePtr	getNode (Type, const char *) const

virtual LinkPtr	getLink (Type, const HandleSeq &) const

virtual AtomPtr	getAtom (Handle) const

virtual HandleSeq	getIncomingSet (Handle) const

virtual void	storeAtom (Handle)

virtual void	loadType (AtomTable &, Type)

virtual void	barrier ()

Public Member Functions inherited from opencog::BackingStore
virtual	~BackingStore ()

virtual bool	ignoreType (Type t) const

virtual bool	ignoreAtom (Handle) const

Private Attributes
AtomStorage *	_store

Additional Inherited Members
Public Attributes inherited from opencog::BackingStore
std::set< Type >	_ignored_types

Detailed Description

Definition at line 34 of file SQLPersistSCM.cc.

Constructor & Destructor Documentation

SQLBackingStore::SQLBackingStore ( )

Definition at line 52 of file SQLPersistSCM.cc.

References _store.

Member Function Documentation

void SQLBackingStore::barrier ( )

virtual

Read-write synchronization barrier. All writes will be completed before this routine returns. This allows the backend to implement asynchronous writes, while still providing some control to those who need it. (Mostly the unit tests, at this time.)

Implements opencog::BackingStore.

Definition at line 92 of file SQLPersistSCM.cc.

References _store, and opencog::AtomStorage::flushStoreQueue().

AtomPtr SQLBackingStore::getAtom ( Handle ) const

virtual

Return a pointer to an Atom associated with the given handle, if it exists; else return NULL.

Implements opencog::BackingStore.

Definition at line 72 of file SQLPersistSCM.cc.

References _store, and opencog::AtomStorage::getAtom().

HandleSeq SQLBackingStore::getIncomingSet ( Handle ) const

virtual

Return a vector containing the handles of the entire incoming set of the indicated handle.

Implements opencog::BackingStore.

Definition at line 77 of file SQLPersistSCM.cc.

References _store, and opencog::AtomStorage::getIncomingSet().

LinkPtr SQLBackingStore::getLink	(	Type	,
		const HandleSeq &
	)		const

virtual

Return a pointer to a link of the indicated type and outset, if it exists; else return NULL.

Implements opencog::BackingStore.

Definition at line 67 of file SQLPersistSCM.cc.

References _store, and opencog::AtomStorage::getLink().

NodePtr SQLBackingStore::getNode	(	Type	,
		const char *
	)		const

virtual

Return a pointer to a node of the indicated type and name, if it exists; else return NULL.

Implements opencog::BackingStore.

Definition at line 62 of file SQLPersistSCM.cc.

References _store, and opencog::AtomStorage::getNode().

void SQLBackingStore::loadType	(	AtomTable &	,
		Type
	)

virtual

Load all atoms of the given type, but only if they are not already in the AtomTable. (This avoids truth value merges between truth values stored in the backend, and truth values in the atomspace.)

Implements opencog::BackingStore.

Definition at line 87 of file SQLPersistSCM.cc.

References _store, and opencog::AtomStorage::loadType().

void SQLBackingStore::set_store ( AtomStorage * as )

Definition at line 57 of file SQLPersistSCM.cc.

References _store.

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