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

Class CassandraInputFormat<OUT extends org.apache.flink.api.java.tuple.Tuple>

java.lang.Object

org.apache.flink.api.common.io.RichInputFormat<OUT,org.apache.flink.core.io.InputSplit>

org.apache.flink.batch.connectors.cassandra.CassandraInputFormatBase<OUT>

org.apache.flink.batch.connectors.cassandra.CassandraInputFormat<OUT>

Type Parameters:

OUT - type of Tuple

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.io.InputFormat<OUT,org.apache.flink.core.io.InputSplit>, org.apache.flink.api.common.io.NonParallelInput, org.apache.flink.core.io.InputSplitSource<org.apache.flink.core.io.InputSplit>

public class CassandraInputFormat<OUT extends org.apache.flink.api.java.tuple.Tuple>
extends CassandraInputFormatBase<OUT>

InputFormat to read data from Apache Cassandra and generate $Tuple.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.flink.batch.connectors.cassandra.CassandraInputFormatBase

cluster, logger, query, session

Constructor Summary

Constructors

Constructor	Description
CassandraInputFormat(String query, ClusterBuilder builder)

Method Summary

Modifier and Type	Method	Description
OUT	nextRecord(OUT reuse)
void	open(org.apache.flink.core.io.InputSplit ignored)	Opens a Session and executes the query.
boolean	reachedEnd()

Methods inherited from class org.apache.flink.batch.connectors.cassandra.CassandraInputFormatBase

close, configure, createInputSplits, getInputSplitAssigner, getStatistics

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

closeInputFormat, getRuntimeContext, openInputFormat, setRuntimeContext

Methods inherited from class java.lang.Object

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

Constructor Detail

CassandraInputFormat

public CassandraInputFormat(String query,
                            ClusterBuilder builder)

Method Detail

open

public void open(org.apache.flink.core.io.InputSplit ignored)
          throws IOException

Opens a Session and executes the query.

Parameters:

ignored - because parameter is not parallelizable.

Throws:

IOException

reachedEnd

public boolean reachedEnd()
                   throws IOException

Throws:

IOException

nextRecord

public OUT nextRecord(OUT reuse)
               throws IOException

Throws:

IOException