Package org.trellisldp.jdbc

Class DBResource

java.lang.Object

org.trellisldp.jdbc.DBResource

All Implemented Interfaces:

Resource

public class DBResource
extends Object
implements Resource

A db-based implementation of the Trellis Resource API.

Nested Class Summary

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

Resource.SpecialResources

Method Summary

Modifier and Type	Method	Description
static CompletionStage<Resource>	findResource(DataSource ds, IRI identifier, Map<String,IRI> extensions, boolean includeLdpType)	Try to load a Trellis resource.
static CompletionStage<Resource>	findResource(org.jdbi.v3.core.Jdbi jdbi, IRI identifier, Map<String,IRI> extensions, boolean includeLdpType)	Try to load a Trellis resource.
static CompletionStage<Resource>	findResource(org.jdbi.v3.core.Jdbi jdbi, IRI identifier, Map<String,IRI> extensions, boolean includeLdpType, boolean supportDirectContainment, boolean supportIndirectContainment)	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.
Stream<Map.Entry<String,String>>	getExtraLinkRelations()	Get any extra implementation-defined link relations 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.
Set<IRI>	getMetadataGraphNames()	Retrieve a collection of attached metadata graph names.
Instant	getModified()	Get the last modified date.
boolean	hasMetadata(IRI graphName)	Test whether this resource has an attached metadata resource.
boolean	isDeleted()	Identify whether this resource had previously been deleted.
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, getRevision, stream

Method Detail

findResource

public static CompletionStage<Resource> findResource(DataSource ds,
                                                     IRI identifier,
                                                     Map<String,IRI> extensions,
                                                     boolean includeLdpType)

Try to load a Trellis resource.

Parameters:

ds - the datasource

identifier - the identifier

extensions - a map of extensions

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

Returns:

a Resource, if one exists

findResource

public static CompletionStage<Resource> findResource(org.jdbi.v3.core.Jdbi jdbi,
                                                     IRI identifier,
                                                     Map<String,IRI> extensions,
                                                     boolean includeLdpType)

Try to load a Trellis resource.

Parameters:

jdbi - the Jdbi object

identifier - the identifier

extensions - a map of extensions

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

Returns:

a Resource, if one exists

findResource

public static CompletionStage<Resource> findResource(org.jdbi.v3.core.Jdbi jdbi,
                                                     IRI identifier,
                                                     Map<String,IRI> extensions,
                                                     boolean includeLdpType,
                                                     boolean supportDirectContainment,
                                                     boolean supportIndirectContainment)

Try to load a Trellis resource.

Parameters:

jdbi - the Jdbi object

identifier - the identifier

extensions - a map of extensions

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

supportDirectContainment - whether to support direct containment

supportIndirectContainment - whether to support indirect containment

Returns:

a Resource, if one exists

isDeleted

public boolean isDeleted()

Identify whether this resource had previously been deleted.

Returns:

true if the resource previously existed

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

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.

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

hasMetadata

public boolean hasMetadata(IRI graphName)

Description copied from interface: Resource

Test whether this resource has an attached metadata resource.

Specified by:

hasMetadata in interface Resource

Parameters:

graphName - the name of the metadata graph

Returns:

true if this resource has an attached metadata resource; false otherwise

getMetadataGraphNames

public Set<IRI> getMetadataGraphNames()

Description copied from interface: Resource

Retrieve a collection of attached metadata graph names.

Specified by:

getMetadataGraphNames in interface Resource

Returns:

a set of metadata resource graph names

getExtraLinkRelations

public Stream<Map.Entry<String,String>> getExtraLinkRelations()

Description copied from interface: Resource

Get any extra implementation-defined link relations for this resource.

Specified by:

getExtraLinkRelations in interface Resource

Returns:

a stream of relation types