io.konig.core.impl

Class TraversalImpl

java.lang.Object

io.konig.core.impl.TraversalImpl

All Implemented Interfaces:

Traversal

public class TraversalImpl
extends Object
implements Traversal

Constructor Summary

Constructors

Constructor and Description
TraversalImpl(Graph g)
TraversalImpl(Graph g, List<?> list)
TraversalImpl(Vertex v)

Method Summary

Modifier and Type	Method and Description
Traversal	addLiteral(String property, String value) Add a literal property value to all vertices in this traversal.
Traversal	addLiteral(org.openrdf.model.URI property, String value) Add a literal property value to all vertices in this traversal.
Traversal	addObject(String property, String iri) Add an object property to all vertices in this traversal.
Traversal	addProperty(org.openrdf.model.URI property, org.openrdf.model.Value value) Add a property to all vertices in this traversal
Traversal	addV(org.openrdf.model.Resource... iri) Add one or more vertices to the underlying graph
void	addValues(Set<org.openrdf.model.Value> set) Add the values in this traversal to a given Set.
Traversal	distinct() Filter the elements in this traversal so that each value is unique.
org.openrdf.model.URI	firstIRI(org.openrdf.model.URI predicate)
org.openrdf.model.Literal	firstLiteral(org.openrdf.model.URI predicate)
org.openrdf.model.Value	firstValue(org.openrdf.model.URI predicate) Iterate over the vertices in this traversal and get the value from the first edge having the specified predicate.
Vertex	firstVertex() From the current set of vertices in this traversal, get the first one.
Vertex	firstVertex(org.openrdf.model.URI predicate) Iterate over the vertices in this traversal, get the object of the first outgoing edge having the specified predicate, and return it as a Vertex.
Traversal	has(org.openrdf.model.URI property) Filter this traversal to those elements that have the specified property.
Traversal	hasValue(org.openrdf.model.URI property, String value) Filter this traversal to those elements that have the specified property value
Traversal	hasValue(org.openrdf.model.URI property, org.openrdf.model.Value value) Filter this traversal to those elements that have the specified property value
Traversal	in(org.openrdf.model.URI predicate) Move from the current set of vertices in this traversal to a new set of vertices by following incoming edges labeled by a given predicate.
Traversal	inTransitive(org.openrdf.model.URI predicate) Move inward from the current set of vertices in this traversal to the transitive closure of a given predicate.
Traversal	isIRI() Filter this traversal so that it includes only named individuals, i.e.
org.openrdf.model.Literal	literal(String value)
Traversal	out(org.openrdf.model.URI predicate) Move from the current set of vertices in this traversal to a new set of vertices by following outgoing edges labeled by a given predicate.
Traversal	outTransitive(org.openrdf.model.URI predicate) Move outward from the current set of vertices in this traversal to the transitive closure of a given predicate.
int	size() Get the number of elements in this traversal
Set<org.openrdf.model.URI>	toUriSet()
List<org.openrdf.model.Value>	toValueList()
List<Vertex>	toVertexList()
Traversal	union(Set<? extends org.openrdf.model.Value> param)
Traversal	union(org.openrdf.model.Value... param) Add a value to this Traversal.
Traversal	union(Vertex v) Add a vertex to this Traversal.
org.openrdf.model.URI	uri(String value)

Methods inherited from class java.lang.Object

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

Constructor Detail

TraversalImpl

public TraversalImpl(Graph g)

TraversalImpl

public TraversalImpl(Vertex v)

TraversalImpl

public TraversalImpl(Graph g,
                     List<?> list)

Method Detail

has

public Traversal has(org.openrdf.model.URI property)

Description copied from interface: Traversal

Filter this traversal to those elements that have the specified property.

Specified by:

has in interface Traversal

Parameters:

property - The property used to filter the elements.

Returns:

A new traversal that is a filtered copy of this one.

size

public int size()

Description copied from interface: Traversal

Get the number of elements in this traversal

Specified by:

size in interface Traversal

Returns:

the number of elements in this traversal

hasValue

public Traversal hasValue(org.openrdf.model.URI property,
                          org.openrdf.model.Value value)

Description copied from interface: Traversal

Filter this traversal to those elements that have the specified property value

Specified by:

hasValue in interface Traversal

Parameters:

property - The property used to filter the elements

value - The target value of the property

Returns:

A new Traversal that is a filtered copy of this one.

addProperty

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

Description copied from interface: Traversal

Add a property to all vertices in this traversal

Specified by:

addProperty in interface Traversal

Parameters:

property - The IRI for the property being added

value - The value of the property being added.

Returns:

This traversal

addObject

public Traversal addObject(String property,
                           String iri)

Description copied from interface: Traversal

Add an object property to all vertices in this traversal. This is a convenience method that converts the supplied strings to URI values, and then invokes the addProperty method.

Specified by:

addObject in interface Traversal

Parameters:

property - The IRI for the property that is being added.

iri - The IRI for the resource that is the value of the property

Returns:

This traversal

addLiteral

public Traversal addLiteral(String property,
                            String value)

Description copied from interface: Traversal

Add a literal property value to all vertices in this traversal.

Specified by:

addLiteral in interface Traversal

Parameters:

property - The IRI for the property that is being added.

value - The value of the property

Returns:

This traversal

literal

public org.openrdf.model.Literal literal(String value)

uri

public org.openrdf.model.URI uri(String value)

addV

public Traversal addV(org.openrdf.model.Resource... iri)

Description copied from interface: Traversal

Add one or more vertices to the underlying graph

Specified by:

addV in interface Traversal

Parameters:

iri - The vertex (or vertices) to add.

Returns:

A new Traversal containing the newly added vertices.

addLiteral

public Traversal addLiteral(org.openrdf.model.URI property,
                            String value)

Description copied from interface: Traversal

Add a literal property value to all vertices in this traversal.

Specified by:

addLiteral in interface Traversal

Parameters:

property - The IRI for the property that is being added.

value - The value of the property

Returns:

This traversal

firstIRI

public org.openrdf.model.URI firstIRI(org.openrdf.model.URI predicate)

Specified by:

firstIRI in interface Traversal

firstValue

public org.openrdf.model.Value firstValue(org.openrdf.model.URI predicate)

Description copied from interface: Traversal

Iterate over the vertices in this traversal and get the value from the first edge having the specified predicate.

Specified by:

firstValue in interface Traversal

Parameters:

predicate - The predicate for the value requested.

Returns:

The Value requested, or null if no such value exists.

hasValue

public Traversal hasValue(org.openrdf.model.URI property,
                          String value)

Description copied from interface: Traversal

Filter this traversal to those elements that have the specified property value

Specified by:

hasValue in interface Traversal

Parameters:

property - The property used to filter the elements

value - The string value of the property

Returns:

A new Traversal that is a filtered copy of this one.

out

public Traversal out(org.openrdf.model.URI predicate)

Description copied from interface: Traversal

Move from the current set of vertices in this traversal to a new set of vertices by following outgoing edges labeled by a given predicate.

Specified by:

out in interface Traversal

Parameters:

predicate - The label for the edge to be traversed

Returns:

A new Traversal encapsulating the vertices at the other end of the outgoing edges with the specified predicate.

firstVertex

public Vertex firstVertex(org.openrdf.model.URI predicate)

Description copied from interface: Traversal

Iterate over the vertices in this traversal, get the object of the first outgoing edge having the specified predicate, and return it as a Vertex.

Specified by:

firstVertex in interface Traversal

Parameters:

predicate - The predicate for the Vertex requested

Returns:

The Vertex requested, or null if no such Vertex exists.

in

public Traversal in(org.openrdf.model.URI predicate)

Description copied from interface: Traversal

Move from the current set of vertices in this traversal to a new set of vertices by following incoming edges labeled by a given predicate.

Specified by:

in in interface Traversal

Parameters:

predicate - The label for the edges to be traversed.

Returns:

A new Traversal encapsulating the vertices at the other end of the incoming edges.

firstVertex

public Vertex firstVertex()

Description copied from interface: Traversal

From the current set of vertices in this traversal, get the first one.

Specified by:

firstVertex in interface Traversal

Returns:

The first vertex in this traversal.

toVertexList

public List<Vertex> toVertexList()

Specified by:

toVertexList in interface Traversal

addValues

public void addValues(Set<org.openrdf.model.Value> set)

Description copied from interface: Traversal

Add the values in this traversal to a given Set.

Specified by:

addValues in interface Traversal

Parameters:

set - The set into which values should be added.

toValueList

public List<org.openrdf.model.Value> toValueList()

Specified by:

toValueList in interface Traversal

toUriSet

public Set<org.openrdf.model.URI> toUriSet()

Specified by:

toUriSet in interface Traversal

distinct

public Traversal distinct()

Description copied from interface: Traversal

Filter the elements in this traversal so that each value is unique.

Specified by:

distinct in interface Traversal

Returns:

This traversal

outTransitive

public Traversal outTransitive(org.openrdf.model.URI predicate)

Description copied from interface: Traversal

Move outward from the current set of vertices in this traversal to the transitive closure of a given predicate.

Specified by:

outTransitive in interface Traversal

Parameters:

predicate - The predicate whose transitive closure is to be computed.

Returns:

This traversal updated with the transitive closure.

inTransitive

public Traversal inTransitive(org.openrdf.model.URI predicate)

Description copied from interface: Traversal

Move inward from the current set of vertices in this traversal to the transitive closure of a given predicate.

Specified by:

inTransitive in interface Traversal

Parameters:

predicate - The predicate whose transitive closure is to be computed.

Returns:

This traversal updated with the transitive closure.

union

public Traversal union(Vertex v)

Description copied from interface: Traversal

Add a vertex to this Traversal.

Specified by:

union in interface Traversal

Parameters:

v - The vertex to be added.

Returns:

This traversal

union

public Traversal union(Set<? extends org.openrdf.model.Value> param)

Specified by:

union in interface Traversal

union

public Traversal union(org.openrdf.model.Value... param)

Description copied from interface: Traversal

Add a value to this Traversal.

Specified by:

union in interface Traversal

Parameters:

param - The value to be added.

Returns:

This traversal

isIRI

public Traversal isIRI()

Description copied from interface: Traversal

Filter this traversal so that it includes only named individuals, i.e. resources identified by an IRI.

Specified by:

isIRI in interface Traversal

Returns:

A new Traversal that is a filtered copy of this one.

firstLiteral

public org.openrdf.model.Literal firstLiteral(org.openrdf.model.URI predicate)

Specified by:

firstLiteral in interface Traversal