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

Class CassandraCommitter

java.lang.Object

org.apache.flink.streaming.runtime.operators.CheckpointCommitter

org.apache.flink.streaming.connectors.cassandra.CassandraCommitter

All Implemented Interfaces:

Serializable

public class CassandraCommitter
extends org.apache.flink.streaming.runtime.operators.CheckpointCommitter

CheckpointCommitter that saves information about completed checkpoints within a separate table in a cassandra database.

Entries are in the form |operator_id | subtask_id | last_completed_checkpoint|

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.flink.streaming.runtime.operators.CheckpointCommitter

jobId, LOG, operatorId

Constructor Summary

Constructors

Constructor	Description
CassandraCommitter(ClusterBuilder builder)
CassandraCommitter(ClusterBuilder builder, String keySpace)

Method Summary

Modifier and Type	Method	Description
void	close()
void	commitCheckpoint(int subtaskIdx, long checkpointId)
void	createResource()	Generates the necessary tables to store information.
boolean	isCheckpointCommitted(int subtaskIdx, long checkpointId)
void	open()
void	setJobId(String id)	Internally used to set the job ID after instantiation.

Methods inherited from class org.apache.flink.streaming.runtime.operators.CheckpointCommitter

setOperatorId

Methods inherited from class java.lang.Object

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

Constructor Detail

CassandraCommitter

public CassandraCommitter(ClusterBuilder builder)

CassandraCommitter

public CassandraCommitter(ClusterBuilder builder,
                          String keySpace)

Method Detail

setJobId

public void setJobId(String id)
              throws Exception

Internally used to set the job ID after instantiation.

Overrides:

setJobId in class org.apache.flink.streaming.runtime.operators.CheckpointCommitter

Throws:

Exception

createResource

public void createResource()
                    throws Exception

Generates the necessary tables to store information.

Specified by:

createResource in class org.apache.flink.streaming.runtime.operators.CheckpointCommitter

Throws:

Exception

open

public void open()
          throws Exception

Specified by:

open in class org.apache.flink.streaming.runtime.operators.CheckpointCommitter

Throws:

Exception

close

public void close()
           throws Exception

Specified by:

close in class org.apache.flink.streaming.runtime.operators.CheckpointCommitter

Throws:

Exception

commitCheckpoint

public void commitCheckpoint(int subtaskIdx,
                             long checkpointId)

Specified by:

commitCheckpoint in class org.apache.flink.streaming.runtime.operators.CheckpointCommitter

isCheckpointCommitted

public boolean isCheckpointCommitted(int subtaskIdx,
                                     long checkpointId)

Specified by:

isCheckpointCommitted in class org.apache.flink.streaming.runtime.operators.CheckpointCommitter