io.konig.core

Interface Vertex

All Known Implementing Classes:

VertexImpl

public interface Vertex

Method Summary

Modifier and Type	Method and Description
void	addProperty(org.openrdf.model.URI property, org.openrdf.model.Value value)
List<org.openrdf.model.Value>	asList()
Graph	asNamedGraph() Get a representation of this Vertex as a named graph.
Graph	assertNamedGraph() Assert that this Vertex is a named graph and get that graph.
Traversal	asTraversal()
Double	doubleValue(org.openrdf.model.URI predicate)
Graph	getGraph() Get the graph that contains this vertex.
org.openrdf.model.Resource	getId() The identifier for this Vertex
org.openrdf.model.Resource	getResource(org.openrdf.model.URI predicate) Get the value of a specified property as a Resource
org.openrdf.model.URI	getURI(org.openrdf.model.URI predicate) Get the value of a specified property as a URI.
org.openrdf.model.Value	getValue(org.openrdf.model.URI predicate) Get the value of a specified property.
Set<org.openrdf.model.Value>	getValueSet(org.openrdf.model.URI predicate) Get the set of values of a specified property
Vertex	getVertex(org.openrdf.model.URI predicate) Get the value of a property as a Vertex
Set<Vertex>	getVertexSet(org.openrdf.model.URI predicate) Get the set of values of a specified property as a set of vertices.
boolean	hasEdge(Edge edge)
boolean	hasProperty(org.openrdf.model.URI predicate, org.openrdf.model.Value value) Test whether the Vertex has a given value for a specified property.
Set<Map.Entry<org.openrdf.model.URI,Set<Edge>>>	inEdges()
Set<Edge>	inEdgeSet() Returns a set containing all of the incoming edges
Set<Edge>	inProperty(org.openrdf.model.URI predicate) Get the Set of incoming edges with the specified predicate.
Integer	integerValue(org.openrdf.model.URI predicate)
boolean	isList()
boolean	isOrphan() Test whether the Vertex has any incoming edges.
Set<Map.Entry<org.openrdf.model.URI,Set<Edge>>>	outEdges() Returns a set of entries for the outgoing edges
Set<Edge>	outEdgeSet() Returns a set containing all of the outgoing edges
Set<Edge>	outProperty(org.openrdf.model.URI predicate) Get the Set of outgoing edges with the specified predicate.
void	remove(Edge edge)
String	stringValue(org.openrdf.model.URI predicate)
Vertex	vertexValue(org.openrdf.model.URI predicate)

Method Detail

asNamedGraph

Graph asNamedGraph()

Get a representation of this Vertex as a named graph.

Returns:

The Graph representation of this Vertex, or null if this Vertex is not a named graph

assertNamedGraph

Graph assertNamedGraph()

Assert that this Vertex is a named graph and get that graph.

Returns:

The Graph representation of this Vertex. A graph representation will be created if it does not exist.

getGraph

Graph getGraph()

Get the graph that contains this vertex.

Returns:

The graph that contains this vertex.

getId

org.openrdf.model.Resource getId()

The identifier for this Vertex

Returns:

outEdges

Set<Map.Entry<org.openrdf.model.URI,Set<Edge>>> outEdges()

Returns a set of entries for the outgoing edges

inEdges

Set<Map.Entry<org.openrdf.model.URI,Set<Edge>>> inEdges()

inEdgeSet

Set<Edge> inEdgeSet()

Returns a set containing all of the incoming edges

outEdgeSet

Set<Edge> outEdgeSet()

Returns a set containing all of the outgoing edges

hasEdge

boolean hasEdge(Edge edge)

addProperty

void addProperty(org.openrdf.model.URI property,
                 org.openrdf.model.Value value)

outProperty

Set<Edge> outProperty(org.openrdf.model.URI predicate)

Get the Set of outgoing edges with the specified predicate.

Parameters:

predicate - The predicate for the outgoing edges

Returns:

The set of outgoing edges with the specified predicate, or an empty set if there are no such outgoing edges.

getValue

org.openrdf.model.Value getValue(org.openrdf.model.URI predicate)

Get the value of a specified property.

Parameters:

predicate - The predicate that identifies the property whose value is to be returned.

Returns:

A value for the specified property, or null if no such property exists. If the vertex contains more than one value for the given property, the returned value is indeterminate.

getValueSet

Set<org.openrdf.model.Value> getValueSet(org.openrdf.model.URI predicate)

Get the set of values of a specified property

getVertexSet

Set<Vertex> getVertexSet(org.openrdf.model.URI predicate)

Get the set of values of a specified property as a set of vertices.

getURI

org.openrdf.model.URI getURI(org.openrdf.model.URI predicate)

Get the value of a specified property as a URI.

Parameters:

predicate - The predicate that identifies the properties whose value is to be returned.

Returns:

The URI value for the specified property. If no such property exists or does not have a URI value, this method returns null.

getResource

org.openrdf.model.Resource getResource(org.openrdf.model.URI predicate)

Get the value of a specified property as a Resource

Parameters:

predicate - The predicate that identifies the property whose value is to be returned.

Returns:

The value of the specified property. If no such value exists or none of the values is a Resource, this method returns null.

getVertex

Vertex getVertex(org.openrdf.model.URI predicate)
          throws KonigException

Get the value of a property as a Vertex

Parameters:

predicate - The predicate that identifies the property

Returns:

A Vertex representing the value of the specified property, or null if no such value exists.

Throws:

KonigException - If there is more than one value for the specified property

integerValue

Integer integerValue(org.openrdf.model.URI predicate)

stringValue

String stringValue(org.openrdf.model.URI predicate)

doubleValue

Double doubleValue(org.openrdf.model.URI predicate)

vertexValue

Vertex vertexValue(org.openrdf.model.URI predicate)

hasProperty

boolean hasProperty(org.openrdf.model.URI predicate,
                    org.openrdf.model.Value value)

Test whether the Vertex has a given value for a specified property.

Parameters:

predicate - The property to be tested

value - The value to be tested

Returns:

True if the vertex has the given value for the specified property and false otherwise

inProperty

Set<Edge> inProperty(org.openrdf.model.URI predicate)

Get the Set of incoming edges with the specified predicate.

Parameters:

predicate - The predicate for the incoming edges

Returns:

The set of incoming edges with the specified predicate

asTraversal

Traversal asTraversal()

remove

void remove(Edge edge)

isList

boolean isList()

asList

List<org.openrdf.model.Value> asList()

isOrphan

boolean isOrphan()

Test whether the Vertex has any incoming edges.

Returns:

True if there are no incoming edges and false otherwise