org.aksw.sparqlify.sparqlview

Class SparqlViewInstance

java.lang.Object

org.aksw.sparqlify.sparqlview.ViewInstanceOld

org.aksw.sparqlify.sparqlview.SparqlViewInstance

public class SparqlViewInstance
extends ViewInstanceOld

Field Summary

Fields inherited from class org.aksw.sparqlify.sparqlview.ViewInstanceOld

binding, instanceId, queryQuad, queryQuads, renamer, subId, viewQuad, viewQuads

Constructor Summary

Constructors

Constructor and Description
SparqlViewInstance(com.hp.hpl.jena.sparql.core.Quad queryQuad, com.hp.hpl.jena.sparql.core.Quad viewQuad, int instanceId, int subId, SparqlView parent, TwoWayBinding binding)

Method Summary

Methods

Modifier and Type	Method and Description
SparqlViewInstance	copy()
boolean	equals(Object obj)
TwoWayBinding	getBinding()
com.hp.hpl.jena.sparql.expr.Expr	getDefiningExpr(com.hp.hpl.jena.sparql.core.Var var) For a view variable, return its defining SQL expression.
List<com.hp.hpl.jena.sparql.expr.Expr>	getInferredDefiningExprs(com.hp.hpl.jena.sparql.core.Var var) For a query variable, get all defining expressions, taking equivalences into account The question is, whether it makes sense to also treat constants as defining expressions.
SparqlView	getInstance()
int	getInstanceId()
SparqlView	getParent()
com.google.common.collect.SetMultimap<com.hp.hpl.jena.sparql.core.Var,com.hp.hpl.jena.sparql.core.Var>	getParentToQueryBinding() How the query variables map to the parent view Given a query with var a, and a virtual graph with ?s: e.g.
com.hp.hpl.jena.sparql.core.Quad	getQueryQuad()
com.hp.hpl.jena.sparql.core.QuadPattern	getQueryQuads()
com.google.common.collect.SetMultimap<com.hp.hpl.jena.sparql.core.Var,com.hp.hpl.jena.sparql.core.Var>	getQueryToParentBinding() Returns a map from query level to the parent, so the instance level is omitted.
com.google.common.collect.BiMap<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node>	getRenamer()
com.google.common.collect.Multimap<com.hp.hpl.jena.sparql.core.Var,VarDef>	getSqlBinding()
com.hp.hpl.jena.sparql.core.Quad	getViewQuad()
com.hp.hpl.jena.sparql.core.QuadPattern	getViewQuads()
int	hashCode()
boolean	isViewVariable(com.hp.hpl.jena.sparql.core.Var var)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SparqlViewInstance

public SparqlViewInstance(com.hp.hpl.jena.sparql.core.Quad queryQuad,
                  com.hp.hpl.jena.sparql.core.Quad viewQuad,
                  int instanceId,
                  int subId,
                  SparqlView parent,
                  TwoWayBinding binding)

Method Detail

copy

public SparqlViewInstance copy()

getInstance

public SparqlView getInstance()

getParent

public SparqlView getParent()

getDefiningExpr

public com.hp.hpl.jena.sparql.expr.Expr getDefiningExpr(com.hp.hpl.jena.sparql.core.Var var)

For a view variable, return its defining SQL expression.

Parameters:

var -

Returns:

getInferredDefiningExprs

public List<com.hp.hpl.jena.sparql.expr.Expr> getInferredDefiningExprs(com.hp.hpl.jena.sparql.core.Var var)

For a query variable, get all defining expressions, taking equivalences into account The question is, whether it makes sense to also treat constants as defining expressions. I guess yes, since a view quad such as ?s rdf:type ?o could be rewritten as ?s ?p ?o . with ?p = rdf:type

Parameters:

var -

Returns:

isViewVariable

public boolean isViewVariable(com.hp.hpl.jena.sparql.core.Var var)

Overrides:

isViewVariable in class ViewInstanceOld

getQueryToParentBinding

public com.google.common.collect.SetMultimap<com.hp.hpl.jena.sparql.core.Var,com.hp.hpl.jena.sparql.core.Var> getQueryToParentBinding()

Returns a map from query level to the parent, so the instance level is omitted.

Overrides:

getQueryToParentBinding in class ViewInstanceOld

Returns:

getParentToQueryBinding

public com.google.common.collect.SetMultimap<com.hp.hpl.jena.sparql.core.Var,com.hp.hpl.jena.sparql.core.Var> getParentToQueryBinding()

How the query variables map to the parent view Given a query with var a, and a virtual graph with ?s: e.g. {?view1_s=[?a]}

Overrides:

getParentToQueryBinding in class ViewInstanceOld

Returns:

getQueryQuads

public com.hp.hpl.jena.sparql.core.QuadPattern getQueryQuads()

Overrides:

getQueryQuads in class ViewInstanceOld

getViewQuads

public com.hp.hpl.jena.sparql.core.QuadPattern getViewQuads()

Overrides:

getViewQuads in class ViewInstanceOld

getQueryQuad

public com.hp.hpl.jena.sparql.core.Quad getQueryQuad()

Overrides:

getQueryQuad in class ViewInstanceOld

getViewQuad

public com.hp.hpl.jena.sparql.core.Quad getViewQuad()

Overrides:

getViewQuad in class ViewInstanceOld

getInstanceId

public int getInstanceId()

Overrides:

getInstanceId in class ViewInstanceOld

getRenamer

public com.google.common.collect.BiMap<com.hp.hpl.jena.graph.Node,com.hp.hpl.jena.graph.Node> getRenamer()

Overrides:

getRenamer in class ViewInstanceOld

getBinding

public TwoWayBinding getBinding()

Overrides:

getBinding in class ViewInstanceOld

getSqlBinding

public com.google.common.collect.Multimap<com.hp.hpl.jena.sparql.core.Var,VarDef> getSqlBinding()

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object