org.apache.cassandra.streaming

Class StreamTask

java.lang.Object

org.apache.cassandra.streaming.StreamTask

Direct Known Subclasses:

StreamReceiveTask, StreamTransferTask

public abstract class StreamTask
extends java.lang.Object

StreamTask is an abstraction of the streaming task performed over specific ColumnFamily.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.UUID	cfId
protected StreamSession	session StreamSession that this task belongs

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	StreamTask(StreamSession session, java.util.UUID cfId)

Method Summary

Methods

Modifier and Type	Method and Description
abstract void	abort() Abort the task.
StreamSummary	getSummary()
abstract int	getTotalNumberOfFiles()
abstract long	getTotalSize()

Methods inherited from class java.lang.Object

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

Field Detail

session

protected final StreamSession session

StreamSession that this task belongs

cfId

protected final java.util.UUID cfId

Constructor Detail

StreamTask

protected StreamTask(StreamSession session,
          java.util.UUID cfId)

Method Detail

getTotalNumberOfFiles

public abstract int getTotalNumberOfFiles()

Returns:

total number of files this task receives/streams.

getTotalSize

public abstract long getTotalSize()

Returns:

total bytes expected to receive

abort

public abstract void abort()

Abort the task. Subclass should implement cleaning up resources.

getSummary

public StreamSummary getSummary()

Returns:

StreamSummary that describes this task