org.trellisldp.ext.cassandra.query.rdf

Class ImmutableRetrieve

java.lang.Object

org.trellisldp.ext.cassandra.query.CassandraQuery

org.trellisldp.ext.cassandra.query.rdf.ImmutableRetrieve

@ApplicationScoped
public class ImmutableRetrieve
extends CassandraQuery

A query to retrieve immutable data about a resource from Cassandra.

Field Summary

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

consistency, queryString, readBinaryWorkers, session, writeWorkers

Constructor Summary

Constructors

Constructor and Description
ImmutableRetrieve() For use with RESTeasy and CDI proxies.
ImmutableRetrieve(com.datastax.oss.driver.api.core.CqlSession session, com.datastax.oss.driver.api.core.ConsistencyLevel consistency) Retrieve immutable data about a resource.

Method Summary

Modifier and Type	Method and Description
java.util.concurrent.CompletionStage<java.util.stream.Stream<org.apache.commons.rdf.api.Quad>>	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

ImmutableRetrieve

public ImmutableRetrieve()

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.

ImmutableRetrieve

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

Retrieve immutable data about a resource.

Parameters:

session - the cassandra session

consistency - the consistency level

Method Detail

execute

public java.util.concurrent.CompletionStage<java.util.stream.Stream<org.apache.commons.rdf.api.Quad>> execute(org.apache.commons.rdf.api.IRI id)

Parameters:

id - the IRI of the resource, the immutable data of which is to be retrieved

Returns:

the RDF retrieved