Package org.apache.flink.batch.connectors.cassandra

Class CassandraRowOutputFormat

java.lang.Object

org.apache.flink.api.common.io.RichOutputFormat<OUT>

org.apache.flink.api.common.io.OutputFormatBase<OUT,V>

org.apache.flink.batch.connectors.cassandra.CassandraRowOutputFormat

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.io.OutputFormat<org.apache.flink.types.Row>

public class CassandraRowOutputFormat
extends org.apache.flink.api.common.io.OutputFormatBase<OUT,V>

OutputFormat to write Flink Rows into a Cassandra cluster. * Please read the recommendations in CassandraOutputFormatBase.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected com.datastax.driver.core.Session	session

Constructor Summary

Constructors

Constructor	Description
CassandraRowOutputFormat(String insertQuery, ClusterBuilder builder)
CassandraRowOutputFormat(String insertQuery, ClusterBuilder builder, int maxConcurrentRequests, java.time.Duration maxConcurrentRequestsTimeout)

Method Summary

Modifier and Type	Method	Description
void	configure(org.apache.flink.configuration.Configuration parameters)	Configure the connection to Cassandra.
protected Object[]	extractFields(org.apache.flink.types.Row record)
protected static <T> CompletableFuture<T>	listenableFutureToCompletableFuture(com.google.common.util.concurrent.ListenableFuture<T> listenableFuture)
protected void	postClose()	Closes all resources used by Cassandra connection.
protected void	postOpen()	Opens a Session to Cassandra .
protected CompletionStage<com.datastax.driver.core.ResultSet>	send(OUT record)

Methods inherited from class org.apache.flink.api.common.io.OutputFormatBase

close, open, writeRecord

Methods inherited from class org.apache.flink.api.common.io.RichOutputFormat

getRuntimeContext, setRuntimeContext

Methods inherited from class java.lang.Object

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

Field Detail

session

protected transient com.datastax.driver.core.Session session

Constructor Detail

CassandraRowOutputFormat

public CassandraRowOutputFormat(String insertQuery,
                                ClusterBuilder builder)

CassandraRowOutputFormat

public CassandraRowOutputFormat(String insertQuery,
                                ClusterBuilder builder,
                                int maxConcurrentRequests,
                                java.time.Duration maxConcurrentRequestsTimeout)

Method Detail

extractFields

protected Object[] extractFields(org.apache.flink.types.Row record)

postOpen

protected void postOpen()

Opens a Session to Cassandra .

send

protected CompletionStage<com.datastax.driver.core.ResultSet> send(OUT record)

Specified by:

send in class org.apache.flink.api.common.io.OutputFormatBase<OUT,com.datastax.driver.core.ResultSet>

configure

public void configure(org.apache.flink.configuration.Configuration parameters)

Configure the connection to Cassandra.

postClose

protected void postClose()

Closes all resources used by Cassandra connection.

Overrides:

postClose in class org.apache.flink.api.common.io.OutputFormatBase<OUT,V>

listenableFutureToCompletableFuture

protected static <T> CompletableFuture<T> listenableFutureToCompletableFuture(com.google.common.util.concurrent.ListenableFuture<T> listenableFuture)