com.hp.hpl.jena.graph.query
Class Pattern

java.lang.Object
  com.hp.hpl.jena.graph.query.Pattern

public class Pattern
extends Object

A Pattern represents a matching triple; it is composed of S, P, and O Elements.

Author:

hedgehog

Field Summary

Element	O
Element	P
Element	S

Constructor Summary

Pattern(Element S, Element P, Element O)

Method Summary

TripleMatch	asTripleMatch(Domain d) Convert a Pattern into a TripleMatch by making a Triple who's Nodes are the conversions of the constituent elements.
boolean	match(Domain d, Triple t) Answer true iff this pattern, given the values for variables as found in a given Domain, matches the given triple; update the Domain with any variable bindings.
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

S

public final Element S

P

public final Element P

O

public final Element O

Constructor Detail

Pattern

public Pattern(Element S,
               Element P,
               Element O)

Method Detail

asTripleMatch

public TripleMatch asTripleMatch(Domain d)

Convert a Pattern into a TripleMatch by making a Triple who's Nodes are the conversions of the constituent elements.

match

public boolean match(Domain d,
                     Triple t)

Answer true iff this pattern, given the values for variables as found in a given Domain, matches the given triple; update the Domain with any variable bindings.

Parameters:

d - the Domain with the current bound variable values (and slots for the rest)

t - the concrete triple to match

Returns:

true iff this pattern matches the triple [and side-effects the domain]

toString

public String toString()

Overrides:

toString in class Object