com.stratio.deep.cql

Class DeepCqlRecordWriter

java.lang.Object

com.stratio.deep.cql.DeepCqlRecordWriter

All Implemented Interfaces:

AutoCloseable

public class DeepCqlRecordWriter
extends Object
implements AutoCloseable

Handles the distributed write to cassandra in batch.

Constructor Summary

Constructors

Constructor and Description
DeepCqlRecordWriter(org.apache.spark.TaskContext context, IDeepJobConfig writeConfig) Con

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
protected void	retrievePartitionKeyValidator() retrieve the key validator from system.schema_columnfamilies table
void	write(Cells keys, Cells values) Adds the provided row to a batch.

Methods inherited from class java.lang.Object

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

Constructor Detail

DeepCqlRecordWriter

public DeepCqlRecordWriter(org.apache.spark.TaskContext context,
                   IDeepJobConfig writeConfig)

Con

Parameters:

context -

writeConfig -

Method Detail

close

public void close()

Specified by:

close in interface AutoCloseable

retrievePartitionKeyValidator

protected void retrievePartitionKeyValidator()
                                      throws org.apache.cassandra.exceptions.ConfigurationException

retrieve the key validator from system.schema_columnfamilies table

Throws:

org.apache.cassandra.exceptions.ConfigurationException

write

public void write(Cells keys,
         Cells values)

Adds the provided row to a batch. If the batch size reaches the threshold configured in IDeepJobConfig.getBatchSize the batch will be sent to the data store.

Parameters:

keys - the Cells object containing the row keys.

values - the Cells object containing all the other row columns.