Package org.apache.flink.streaming.connectors.cassandra

Class CassandraPojoSink<IN>

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.streaming.api.functions.sink.RichSinkFunction<IN>

org.apache.flink.streaming.connectors.cassandra.CassandraSinkBase<IN,com.datastax.driver.core.ResultSet>

org.apache.flink.streaming.connectors.cassandra.CassandraPojoSink<IN>

Type Parameters:

IN - Type of the elements emitted by this sink

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction, org.apache.flink.streaming.api.checkpoint.CheckpointedFunction, org.apache.flink.streaming.api.functions.sink.SinkFunction<IN>

public class CassandraPojoSink<IN>
extends CassandraSinkBase<IN,com.datastax.driver.core.ResultSet>

Flink Sink to save data into a Cassandra cluster using Mapper, which it uses annotations from com.datastax.driver.mapping.annotations. Please read the recommendations in CassandraSinkBase.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.streaming.api.functions.sink.SinkFunction

org.apache.flink.streaming.api.functions.sink.SinkFunction.Context

Field Summary

Fields

Modifier and Type	Field	Description
protected Class<IN>	clazz
protected com.datastax.driver.mapping.Mapper<IN>	mapper
protected com.datastax.driver.mapping.MappingManager	mappingManager

Fields inherited from class org.apache.flink.streaming.connectors.cassandra.CassandraSinkBase

cluster, log, session

Constructor Summary

Constructors

Constructor	Description
CassandraPojoSink(Class<IN> clazz, ClusterBuilder builder)	The main constructor for creating CassandraPojoSink.
CassandraPojoSink(Class<IN> clazz, ClusterBuilder builder, String keyspace)
CassandraPojoSink(Class<IN> clazz, ClusterBuilder builder, MapperOptions options)
CassandraPojoSink(Class<IN> clazz, ClusterBuilder builder, MapperOptions options, String keyspace)

Method Summary

Modifier and Type	Method	Description
protected com.datastax.driver.core.Session	createSession()
void	open(org.apache.flink.configuration.Configuration configuration)
com.google.common.util.concurrent.ListenableFuture<com.datastax.driver.core.ResultSet>	send(IN value)

Methods inherited from class org.apache.flink.streaming.connectors.cassandra.CassandraSinkBase

close, initializeState, invoke, snapshotState

Methods inherited from class org.apache.flink.api.common.functions.AbstractRichFunction

getIterationRuntimeContext, getRuntimeContext, setRuntimeContext

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.streaming.api.functions.sink.SinkFunction

finish, invoke, writeWatermark

Field Detail

clazz

protected final Class<IN> clazz

mapper

protected transient com.datastax.driver.mapping.Mapper<IN> mapper

mappingManager

protected transient com.datastax.driver.mapping.MappingManager mappingManager

Constructor Detail

CassandraPojoSink

public CassandraPojoSink(Class<IN> clazz,
                         ClusterBuilder builder)

The main constructor for creating CassandraPojoSink.

Parameters:

clazz - Class instance

CassandraPojoSink

public CassandraPojoSink(Class<IN> clazz,
                         ClusterBuilder builder,
                         @Nullable
                         MapperOptions options)

CassandraPojoSink

public CassandraPojoSink(Class<IN> clazz,
                         ClusterBuilder builder,
                         String keyspace)

CassandraPojoSink

public CassandraPojoSink(Class<IN> clazz,
                         ClusterBuilder builder,
                         @Nullable
                         MapperOptions options,
                         String keyspace)

Method Detail

open

public void open(org.apache.flink.configuration.Configuration configuration)

Specified by:

open in interface org.apache.flink.api.common.functions.RichFunction

Overrides:

open in class CassandraSinkBase<IN,com.datastax.driver.core.ResultSet>

createSession

protected com.datastax.driver.core.Session createSession()

Overrides:

createSession in class CassandraSinkBase<IN,com.datastax.driver.core.ResultSet>

send

public com.google.common.util.concurrent.ListenableFuture<com.datastax.driver.core.ResultSet> send(IN value)

Specified by:

send in class CassandraSinkBase<IN,com.datastax.driver.core.ResultSet>