sparql

Class Equivalence

java.lang.Object

sparql.Equivalence

public class Equivalence
extends Object

Constructor Summary

Constructors

Constructor and Description
Equivalence()

Method Summary

Modifier and Type	Method and Description
static Set<Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node>>	findIsomorphy(Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> in, List<org.aksw.commons.util.Pair<Set<com.hp.hpl.jena.sparql.core.Quad>,Set<com.hp.hpl.jena.sparql.core.Quad>>> order, int index)
static Set<Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node>>	findIsomorphy(com.hp.hpl.jena.sparql.algebra.Op a, com.hp.hpl.jena.sparql.algebra.Op b)
static Set<org.aksw.commons.util.Pair<com.hp.hpl.jena.sparql.core.QuadPattern,com.hp.hpl.jena.sparql.core.QuadPattern>>	findIsomorphy(com.hp.hpl.jena.sparql.algebra.Op opA, com.hp.hpl.jena.sparql.algebra.Op opB, Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> state, Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> constraint) Ideally this function would do the following: .) Check for structural equivalence of the joins .) Return a set of pairs of graph patterns that need to be matched to each other
static Set<Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node>>	findIsomorphy(com.hp.hpl.jena.query.Query a, com.hp.hpl.jena.query.Query b)
static Set<Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node>>	getCompatibleMappings(Collection<com.hp.hpl.jena.sparql.core.Quad> as, Collection<com.hp.hpl.jena.sparql.core.Quad> bs, Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> state, Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> constraint)
static Set<Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node>>	getCompatibleMappings(com.hp.hpl.jena.sparql.core.QuadPattern a, com.hp.hpl.jena.sparql.core.QuadPattern b, Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> state, Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> constraint)
static QuadSignature	getSignature(com.hp.hpl.jena.sparql.core.Quad quad)
static Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node>	getVarMappingSpecialized(com.hp.hpl.jena.sparql.core.Quad a, com.hp.hpl.jena.sparql.core.Quad b) Important: This method assumes that the quads have the same pattern signature and sanity checks that using java assertions.

Methods inherited from class java.lang.Object

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

Constructor Detail

Equivalence

public Equivalence()

Method Detail

findIsomorphy

public static Set<org.aksw.commons.util.Pair<com.hp.hpl.jena.sparql.core.QuadPattern,com.hp.hpl.jena.sparql.core.QuadPattern>> findIsomorphy(com.hp.hpl.jena.sparql.algebra.Op opA,
                                                                                                                                             com.hp.hpl.jena.sparql.algebra.Op opB,
                                                                                                                                             Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> state,
                                                                                                                                             Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> constraint)

Ideally this function would do the following: .) Check for structural equivalence of the joins .) Return a set of pairs of graph patterns that need to be matched to each other

Parameters:

opA -

opB -

state -

constraint -

Returns:

findIsomorphy

public static Set<Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node>> findIsomorphy(com.hp.hpl.jena.query.Query a,
                                                                                            com.hp.hpl.jena.query.Query b)

findIsomorphy

public static Set<Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node>> findIsomorphy(com.hp.hpl.jena.sparql.algebra.Op a,
                                                                                            com.hp.hpl.jena.sparql.algebra.Op b)

findIsomorphy

public static Set<Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node>> findIsomorphy(Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> in,
                                                                                            List<org.aksw.commons.util.Pair<Set<com.hp.hpl.jena.sparql.core.Quad>,Set<com.hp.hpl.jena.sparql.core.Quad>>> order,
                                                                                            int index)

getCompatibleMappings

public static Set<Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node>> getCompatibleMappings(com.hp.hpl.jena.sparql.core.QuadPattern a,
                                                                                                    com.hp.hpl.jena.sparql.core.QuadPattern b,
                                                                                                    Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> state,
                                                                                                    Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> constraint)

getCompatibleMappings

public static Set<Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node>> getCompatibleMappings(Collection<com.hp.hpl.jena.sparql.core.Quad> as,
                                                                                                    Collection<com.hp.hpl.jena.sparql.core.Quad> bs,
                                                                                                    Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> state,
                                                                                                    Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> constraint)

getVarMappingSpecialized

public static Map<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> getVarMappingSpecialized(com.hp.hpl.jena.sparql.core.Quad a,
                                                                                                  com.hp.hpl.jena.sparql.core.Quad b)

Important: This method assumes that the quads have the same pattern signature and sanity checks that using java assertions.

Parameters:

a -

b -

Returns:

getSignature

public static QuadSignature getSignature(com.hp.hpl.jena.sparql.core.Quad quad)