org.trippi
Class TriplePattern

java.lang.Object
  org.trippi.TriplePattern

public class TriplePattern
extends java.lang.Object

A pattern that can be used to derive a Triple from a Map of Node objects.

Constructor Summary

TriplePattern(java.lang.Object subject, java.lang.Object predicate, java.lang.Object object)

Method Summary

java.lang.Object	getObject() Get the object of the pattern.
java.lang.Object	getPredicate() Get the predicate of the pattern.
java.lang.Object	getSubject() Get the subject of the pattern.
static void	main(java.lang.String[] args)
org.jrdf.graph.Triple	match(java.util.Map tuple) Get a Triple that matches this pattern using the provided tuple.
static TriplePattern[]	parse(java.lang.String patterns)
static java.util.List	parse(java.lang.String triples, org.jrdf.graph.GraphElementFactory factory) Parse and return a Set of Triples, treating variable bindings as anonymous nodes.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

TriplePattern

public TriplePattern(java.lang.Object subject,
                     java.lang.Object predicate,
                     java.lang.Object object)
              throws TrippiException

Throws:

TrippiException

Method Detail

parse

public static TriplePattern[] parse(java.lang.String patterns)
                             throws TrippiException

Throws:

TrippiException

parse

public static java.util.List parse(java.lang.String triples,
                                   org.jrdf.graph.GraphElementFactory factory)
                            throws TrippiException

Parse and return a Set of Triples, treating variable bindings as anonymous nodes.

Throws:

TrippiException

getSubject

public java.lang.Object getSubject()

Get the subject of the pattern. This will either be a String (a binding name) or a JRDF SubjectNode.

See Also:

SubjectNode

getPredicate

public java.lang.Object getPredicate()

Get the predicate of the pattern. This will either be a String (a binding name) or a JRDF PredicateNode.

See Also:

PredicateNode

getObject

public java.lang.Object getObject()

Get the object of the pattern. This will either be a String (a binding name) or a JRDF ObjectNode.

See Also:

ObjectNode

match

public org.jrdf.graph.Triple match(java.util.Map tuple)
                            throws TrippiException

Get a Triple that matches this pattern using the provided tuple.

Returns:

Triple if a Triple can be constructed, or null if any of the bound variables in the map are null or wouldn't match the required type for the triple.

Throws:

TrippiException - if the Map does not contain a key that matches a binding name in this pattern.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Throws:

java.lang.Exception