opencog::AttentionalFocusCB Class Reference

#include <AttentionalFocusCB.h>

Inheritance diagram for opencog::AttentionalFocusCB:

Collaboration diagram for opencog::AttentionalFocusCB:

Public Member Functions
	AttentionalFocusCB (AtomSpace *)
bool	node_match (const Handle &, const Handle &)
bool	link_match (const LinkPtr &, const LinkPtr &)
IncomingSet	get_incoming_set (const Handle &)
Public Member Functions inherited from opencog::DefaultPatternMatchCB
	DefaultPatternMatchCB (AtomSpace *)
virtual void	set_pattern (const Variables &, const Pattern &)
virtual bool	variable_match (const Handle &, const Handle &)
virtual bool	post_link_match (const LinkPtr &, const LinkPtr &)
virtual bool	clause_match (const Handle &, const Handle &)
virtual bool	optional_clause_match (const Handle &pattrn, const Handle &grnd)
virtual bool	evaluate_sentence (const Handle &pat, const std::map< Handle, Handle > &gnds)
virtual const std::set< Type > &	get_connectives (void)
bool	optionals_present (void)
Public Member Functions inherited from opencog::PatternMatchCallback
virtual	~PatternMatchCallback ()
virtual bool	fuzzy_match (const Handle &ph, const Handle &gh)
virtual bool	grounding (const std::map< Handle, Handle > &var_soln, const std::map< Handle, Handle > &term_soln)=0
virtual void	push (void)
virtual void	pop (void)
virtual bool	initiate_search (PatternMatchEngine *)=0

Static Private Member Functions
static bool	compare_sti (LinkPtr lptr1, LinkPtr lptr2)

Additional Inherited Members
Protected Member Functions inherited from opencog::DefaultPatternMatchCB
bool	eval_term (const Handle &pat, const std::map< Handle, Handle > &gnds)
bool	eval_sentence (const Handle &pat, const std::map< Handle, Handle > &gnds)
Protected Attributes inherited from opencog::DefaultPatternMatchCB
ClassServer &	_classserver
const VariableTypeMap *	_type_restrictions = NULL
const std::set< Handle > *	_dynamic = NULL
bool	_have_evaluatables = false
AtomSpace	_temp_aspace
Instantiator	_instor
std::set< Type >	_connectives
bool	_optionals_present = false
AtomSpace *	_as

Detailed Description

Definition at line 30 of file AttentionalFocusCB.h.

Constructor & Destructor Documentation

AttentionalFocusCB::AttentionalFocusCB

(

AtomSpace *

as

)

Definition at line 35 of file AttentionalFocusCB.cc.

Member Function Documentation

static bool opencog::AttentionalFocusCB::compare_sti ( LinkPtr  lptr1, LinkPtr  lptr2  )

inlinestaticprivate

Definition at line 33 of file AttentionalFocusCB.h.

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IncomingSet AttentionalFocusCB::get_incoming_set ( const Handle &  h )

virtual

Called whenever the incoming set of an atom is to be explored. This callback allows the search space to be prioritized, by returning (all or some of) the incoming set in some sorted order: the first in the list will be searched first. The search space can also be limited, by returning a set that is smaller than the full incoming set (for example, by returning only those atoms with a high av-sti).

Reimplemented from opencog::PatternMatchCallback.

Definition at line 54 of file AttentionalFocusCB.cc.

References opencog::DefaultPatternMatchCB::_as, compare_sti(), opencog::AtomSpace::get_attentional_focus_boundary(), and opencog::Atom::getIncomingSet().

bool AttentionalFocusCB::link_match ( const LinkPtr &  lpat, const LinkPtr &  lsoln  )

virtual

Called when a link in the template pattern needs to be compared to a possibly matching link in the atomspace. The first argument is a link from the pattern, and the second is a possible solution link from the atomspace. Return true if the links should be compared, else return false.

By default, the search continues if the link arity and the link types match.

Reimplemented from opencog::DefaultPatternMatchCB.

Definition at line 48 of file AttentionalFocusCB.cc.

References opencog::DefaultPatternMatchCB::_as, opencog::AtomSpace::get_attentional_focus_boundary(), and opencog::DefaultPatternMatchCB::link_match().

bool AttentionalFocusCB::node_match ( const Handle &  npat_h, const Handle &  nsoln_h  )

virtual

Called when a node in the template pattern needs to be compared to a possibly matching node in the atomspace. The first argument is a node from the pattern, and the second is a possible solution (grounding) node from the atomspace.

Return true if the nodes match, else return false. By default, the nodes must be identical.

Reimplemented from opencog::DefaultPatternMatchCB.

Definition at line 42 of file AttentionalFocusCB.cc.

References opencog::DefaultPatternMatchCB::_as, opencog::AtomSpace::get_attentional_focus_boundary(), and opencog::Atom::getSTI().

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The documentation for this class was generated from the following files:

• opencog/query/AttentionalFocusCB.h
• opencog/query/AttentionalFocusCB.cc