org.trellisldp.triplestore

Class TriplestoreResource

java.lang.Object

org.trellisldp.triplestore.TriplestoreResource

All Implemented Interfaces:

Resource

public class TriplestoreResource
extends Object
implements Resource

A triplestore-based implementation of the Trellis Resource API.

Nested Class Summary

Nested classes/interfaces inherited from interface org.trellisldp.api.Resource

Resource.SpecialResources

Constructor Summary

Constructors

Constructor and Description
TriplestoreResource(RDFConnection rdfConnection, IRI identifier, boolean includeLdpType) Create a Triplestore-based Resource.

Method Summary

Modifier and Type	Method and Description
static CompletableFuture<Resource>	findResource(RDFConnection rdfConnection, IRI identifier, boolean includeLdpType) Try to load a Trellis resource.
Optional<BinaryMetadata>	getBinaryMetadata() Retrieve a BinaryMetadata for this resouce, if it is a LDP-NR.
Optional<IRI>	getContainer() Get the container for this resource.
IRI	getIdentifier() Get an identifier for this resource.
Optional<IRI>	getInsertedContentRelation() Retrieve the inserted content relation if this is an LDP Indirect container.
IRI	getInteractionModel() Get the LDP interaction model for this resource.
Optional<IRI>	getMemberOfRelation() Retrieve the member of relation IRI.
Optional<IRI>	getMemberRelation() Retrieve the member relation if this is an LDP Direct or Indirect container.
Optional<IRI>	getMembershipResource() Retrieve the membership resource if this is an LDP Direct or Indirect container.
Instant	getModified() Get the last modified date.
boolean	hasAcl() Test whether this resource has an ACL resource.
Stream<Quad>	stream() Retrieve the RDF Quads for a resource.
Stream<Quad>	stream(Collection<IRI> graphNames) Retrieve the RDF Quads for a set of named graphs.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.trellisldp.api.Resource

dataset, getExtraLinkRelations, getRevision, stream

Constructor Detail

TriplestoreResource

public TriplestoreResource(RDFConnection rdfConnection,
                           IRI identifier,
                           boolean includeLdpType)

Create a Triplestore-based Resource.

Parameters:

rdfConnection - the triplestore connector

identifier - the identifier

includeLdpType - whether to include the LDP interaction model in the response

Method Detail

findResource

public static CompletableFuture<Resource> findResource(RDFConnection rdfConnection,
                                                       IRI identifier,
                                                       boolean includeLdpType)

Try to load a Trellis resource.

Parameters:

rdfConnection - the triplestore connector

identifier - the identifier

includeLdpType - whether to include the LDP type in the body of the RDF

Returns:

a new completion stage with a Resource, if one exists

Implementation Requirements:

This method will load a Resource, initializing the object with all resource metadata used with getModified(), getInteractionModel() and other data fetched by the accessors. The resource content is fetched on demand via the stream() method.

getContainer

public Optional<IRI> getContainer()

Description copied from interface: Resource

Get the container for this resource.

Specified by:

getContainer in interface Resource

Returns:

the identifier for a container, if one exists.

stream

public Stream<Quad> stream()

Description copied from interface: Resource

Retrieve the RDF Quads for a resource.

Specified by:

stream in interface Resource

Returns:

the RDF quads

stream

public Stream<Quad> stream(Collection<IRI> graphNames)

Description copied from interface: Resource

Retrieve the RDF Quads for a set of named graphs.

Specified by:

stream in interface Resource

Parameters:

graphNames - the named graphs

Returns:

the RDF quads

getIdentifier

public IRI getIdentifier()

Description copied from interface: Resource

Get an identifier for this resource.

Specified by:

getIdentifier in interface Resource

Returns:

the identifier

getInteractionModel

public IRI getInteractionModel()

Description copied from interface: Resource

Get the LDP interaction model for this resource.

Specified by:

getInteractionModel in interface Resource

Returns:

the interaction model

getMembershipResource

public Optional<IRI> getMembershipResource()

Description copied from interface: Resource

Retrieve the membership resource if this is an LDP Direct or Indirect container.

Specified by:

getMembershipResource in interface Resource

Returns:

the membership resource

getMemberRelation

public Optional<IRI> getMemberRelation()

Description copied from interface: Resource

Retrieve the member relation if this is an LDP Direct or Indirect container.

Specified by:

getMemberRelation in interface Resource

Returns:

the ldp:hasMemberRelation IRI

getMemberOfRelation

public Optional<IRI> getMemberOfRelation()

Description copied from interface: Resource

Retrieve the member of relation IRI.

Specified by:

getMemberOfRelation in interface Resource

Returns:

the ldp:isMemberOfRelation IRI

getInsertedContentRelation

public Optional<IRI> getInsertedContentRelation()

Description copied from interface: Resource

Retrieve the inserted content relation if this is an LDP Indirect container.

Specified by:

getInsertedContentRelation in interface Resource

Returns:

the inserted content relation

getBinaryMetadata

public Optional<BinaryMetadata> getBinaryMetadata()

Description copied from interface: Resource

Retrieve a BinaryMetadata for this resouce, if it is a LDP-NR.

Specified by:

getBinaryMetadata in interface Resource

Returns:

the binary metadata

getModified

public Instant getModified()

Description copied from interface: Resource

Get the last modified date.

Specified by:

getModified in interface Resource

Returns:

the last-modified date

hasAcl

public boolean hasAcl()

Description copied from interface: Resource

Test whether this resource has an ACL resource.

Specified by:

hasAcl in interface Resource

Returns:

true if this resource has and ACL resource; false otherwise