org.trellisldp.ext.cassandra.query.rdf

Class Touch

java.lang.Object

org.trellisldp.ext.cassandra.query.CassandraQuery

org.trellisldp.ext.cassandra.query.rdf.Touch

@ApplicationScoped
public class Touch
extends CassandraQuery

A query that adjusts the modified time 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
Touch() For use with RESTeasy and CDI proxies.
Touch(com.datastax.oss.driver.api.core.CqlSession session, com.datastax.oss.driver.api.core.ConsistencyLevel consistency) Create a query that adjusts the modified time of a resource.

Method Summary

Modifier and Type	Method and Description
java.util.concurrent.CompletionStage<java.lang.Void>	execute(java.time.Instant modified, 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

Touch

public Touch()

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.

Touch

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

Create a query that adjusts the modified time of a resource.

Parameters:

session - the cassandra session

consistency - the consistency level

Method Detail

execute

public java.util.concurrent.CompletionStage<java.lang.Void> execute(java.time.Instant modified,
                                                                    org.apache.commons.rdf.api.IRI id)

Parameters:

modified - the new modification time to record

id - the IRI of the resource to modify

Returns:

whether and when the modification succeeds