Link
From OpenCog
Links are Atom types that connect other Atoms. A Link is uniquely defined by its type and its outgoing set, i.e., the set of Atoms linked by it. If a Link with the same type and outgoing set of a previously inserted Link is inserted in the Atomspace, they are merged.
class Link : public Atom {
public:
Link(Type, Arity, Handle*);
Trail* getTrail();
void setTrail(Trail *);
float getWeight();
char* toString();
char* toShortString();
bool isSource(Handle);
bool isSource(int);
bool isTarget(Handle);
bool isTarget(int);
bool equals(Link *);
};
getTrail() and setTrail() are used by the reasoning module.
getWeight() return a float representation for its TruthValue.
toString() and toShortString() return string representations of the link.
_isSource() _ and isTarget() are convenience methods which answer if a given Atom (or the Atom in position 'n' of Link's outgoing set) is source/target in the relationship represented by the Link.
equals() returns true if both links have the same type and the same elements in their outgoing sets.
