org.trellisldp.api

Class NoopMementoService

java.lang.Object

org.trellisldp.api.NoopMementoService

All Implemented Interfaces:

MementoService

public class NoopMementoService
extends Object
implements MementoService

A no-op MementoService implementation.

Constructor Summary

Constructors

Constructor and Description
NoopMementoService()

Method Summary

Modifier and Type	Method and Description
CompletionStage<Resource>	get(IRI identifier, Instant time) Fetch a Memento resource for the given time.
CompletionStage<SortedSet<Instant>>	mementos(IRI identifier) Get the times for all of the Mementos of the given resource.
CompletionStage<Void>	put(Resource resource) Create a new Memento for a resource.
CompletionStage<Void>	put(ResourceService resourceService, IRI identifier) Create a new Memento for a resource, retrieved from a ResourceService.

Methods inherited from class java.lang.Object

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

Constructor Detail

NoopMementoService

public NoopMementoService()

Method Detail

put

public CompletionStage<Void> put(ResourceService resourceService,
                                 IRI identifier)

Description copied from interface: MementoService

Create a new Memento for a resource, retrieved from a ResourceService.

Specified by:

put in interface MementoService

Parameters:

resourceService - the resource service.

identifier - the identifier.

Returns:

a new completion stage that, when the stage completes normally, indicates that the Memento resource was successfully created in the corresponding persistence layer.

put

public CompletionStage<Void> put(Resource resource)

Description copied from interface: MementoService

Create a new Memento for a resource.

Specified by:

put in interface MementoService

Parameters:

resource - the resource

Returns:

a new completion stage that, when the stage completes normally, indicates that the Memento resource was successfully created in the corresponding persistence layer. In the case of an unsuccessful write operation, the CompletionStage will complete exceptionally and can be handled with CompletionStage.handle(java.util.function.BiFunction<? super T, java.lang.Throwable, ? extends U>), CompletionStage.exceptionally(java.util.function.Function<java.lang.Throwable, ? extends T>) or similar methods.

get

public CompletionStage<Resource> get(IRI identifier,
                                     Instant time)

Description copied from interface: MementoService

Fetch a Memento resource for the given time.

Specified by:

get in interface MementoService

Parameters:

identifier - the resource identifier

time - the requested time

Returns:

the new completion stage, containing the fetched resource

mementos

public CompletionStage<SortedSet<Instant>> mementos(IRI identifier)

Description copied from interface: MementoService

Get the times for all of the Mementos of the given resource.

Specified by:

mementos in interface MementoService

Parameters:

identifier - the resource identifier

Returns:

the new completion stage containing a collection of Memento dateTimes