Package org.aksw.jenax.constraint.impl

Class VSpaceImpl

java.lang.Object

org.aksw.jenax.constraint.impl.VSpaceImpl

All Implemented Interfaces:

Cloneable, Constrainable, VSpace

public class VSpaceImpl
extends Object
implements VSpace

An implementation of value space backed by NodeRanges. The parameters of the methods stateIntersection(VSpace) and stateUnion(VSpace) only accept instances of VSpaceImpl. Any other type yields a ClassCastException.

Author:

raven

Field Summary

Fields

Modifier and Type	Field	Description
protected Domain<org.apache.jena.sparql.expr.ValueSpace,ComparableNodeValue>	domain
protected NodeRanges	nodeRanges

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	VSpaceImpl(NodeRanges nodeRanges)

Method Summary

Modifier and Type	Method	Description
VSpaceImpl	clone()
static VSpaceImpl	create(NodeRanges nodeRanges)
VSpace	forDimension(Object dimensionKey)	TODO The factory-aspect of creating a new ValueSpace with an open dimension should go to ValueSpaceSchema
Domain<?,?>	getDomain()
NodeRanges	getNodeRanges()
boolean	isConflicting()
boolean	isLimitedTo(Object dimensionKey)	Whether the value space only has ranges in the dimension with the given key (e.g.
<X extends Comparable<X>> VSpace	mapDimensionToNewVSpace(Object fromDimKey, Class<X> itemType, Object toDimKey, Function<com.google.common.collect.Range<X>,com.google.common.collect.Range<X>> mapper)	Create a new value space by mapping the values from a given dimension Issue: We don't know if the mapping is surjective - i.e.
org.aksw.commons.algebra.allen.AllenRelation	relateTo(VSpace that)	Return a relation for how this space relates to another.
static com.google.common.collect.Range<org.aksw.commons.util.range.Cmp<Map.Entry<?,org.aksw.commons.util.range.Cmp<ComparableNodeValue>>>>	span(VSpace vspace)
VSpaceImpl	stateIntersection(VSpace valueSpace)
VSpaceImpl	stateUnion(VSpace valueSpace)
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.aksw.jenax.constraint.api.VSpace

isEmpty

Field Details

domain

protected Domain<org.apache.jena.sparql.expr.ValueSpace,ComparableNodeValue> domain

nodeRanges

protected NodeRanges nodeRanges

Constructor Details

VSpaceImpl

protected VSpaceImpl(NodeRanges nodeRanges)

Method Details

getDomain

public Domain<?,?> getDomain()

Specified by:

getDomain in interface VSpace

create

public static VSpaceImpl create(NodeRanges nodeRanges)

getNodeRanges

public NodeRanges getNodeRanges()

clone

public VSpaceImpl clone()

Specified by:

clone in interface Constrainable

Specified by:

clone in interface VSpace

Overrides:

clone in class Object

isLimitedTo

public boolean isLimitedTo(Object dimensionKey)

Description copied from interface: VSpace

Whether the value space only has ranges in the dimension with the given key (e.g. numeric, iRI, text, ...)

Specified by:

isLimitedTo in interface VSpace

stateIntersection

public VSpaceImpl stateIntersection(VSpace valueSpace)

Specified by:

stateIntersection in interface Constrainable

Specified by:

stateIntersection in interface VSpace

stateUnion

public VSpaceImpl stateUnion(VSpace valueSpace)

Specified by:

stateUnion in interface Constrainable

Specified by:

stateUnion in interface VSpace

isConflicting

public boolean isConflicting()

Specified by:

isConflicting in interface Constrainable

toString

public String toString()

Overrides:

toString in class Object

forDimension

public VSpace forDimension(Object dimensionKey)

TODO The factory-aspect of creating a new ValueSpace with an open dimension should go to ValueSpaceSchema

Specified by:

forDimension in interface VSpace

mapDimensionToNewVSpace

public <X extends Comparable<X>> VSpace mapDimensionToNewVSpace(Object fromDimKey,
 Class<X> itemType,
 Object toDimKey,
 Function<com.google.common.collect.Range<X>,com.google.common.collect.Range<X>> mapper)

Description copied from interface: VSpace

Create a new value space by mapping the values from a given dimension Issue: We don't know if the mapping is surjective - i.e. if the src range is unconstrained, the tgt range in that dimension may yet be constrained.

Specified by:

mapDimensionToNewVSpace in interface VSpace

relateTo

public org.aksw.commons.algebra.allen.AllenRelation relateTo(VSpace that)

Description copied from interface: VSpace

Return a relation for how this space relates to another. In particular, it allows for testing whether e.g. the values of this space appear all before the values in another one with respect to the domain. The returned relation is the bitwise OR of the Allen relation of each dimension.

Specified by:

relateTo in interface VSpace

span

public static com.google.common.collect.Range<org.aksw.commons.util.range.Cmp<Map.Entry<?,org.aksw.commons.util.range.Cmp<ComparableNodeValue>>>> span(VSpace vspace)