org.trellisldp.ext.cassandra.query.rdf

Class Mementos

java.lang.Object

org.trellisldp.ext.cassandra.query.CassandraQuery

org.trellisldp.ext.cassandra.query.rdf.Mementos

@ApplicationScoped
public class Mementos
extends CassandraQuery

A query to retrieve a list of the Mementos of a resource.

Field Summary

Fields inherited from class org.trellisldp.ext.cassandra.query.CassandraQuery

consistency, queryString, readBinaryWorkers, session, writeWorkers

Constructor Summary

Constructors

Constructor and Description
Mementos() For use with RESTeasy and CDI proxies.
Mementos(com.datastax.oss.driver.api.core.CqlSession session, com.datastax.oss.driver.api.core.ConsistencyLevel consistency) Create a query that retrieves a list of mementos.

Method Summary

Modifier and Type	Method and Description
java.util.concurrent.CompletionStage<com.datastax.oss.driver.api.core.cql.AsyncResultSet>	execute(org.apache.commons.rdf.api.IRI id)

Methods inherited from class org.trellisldp.ext.cassandra.query.CassandraQuery

executeSyncRead, preparedStatement, preparedStatementAsync

Methods inherited from class java.lang.Object

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

Constructor Detail

Mementos

public Mementos()

For use with RESTeasy and CDI proxies.

API Note:

This construtor is used by CDI runtimes that require a public, no-argument constructor. It should not be invoked directly in user code.

Mementos

@Inject
public Mementos(com.datastax.oss.driver.api.core.CqlSession session,
                        @MutableReadConsistency
                        com.datastax.oss.driver.api.core.ConsistencyLevel consistency)

Create a query that retrieves a list of mementos.

Parameters:

session - the cassandra session

consistency - the consistency level

Method Detail

execute

public java.util.concurrent.CompletionStage<com.datastax.oss.driver.api.core.cql.AsyncResultSet> execute(org.apache.commons.rdf.api.IRI id)

Parameters:

id - the IRI of the resource the Mementos of which are to be cataloged

Returns:

A AsyncResultSet with the modified-dates of any Mementos for this resource. There will be at least one (the most recent one).