org.apache.drill.exec.physical.impl.broadcastsender

Class BroadcastSenderRootExec

java.lang.Object

org.apache.drill.exec.physical.impl.BaseRootExec

org.apache.drill.exec.physical.impl.broadcastsender.BroadcastSenderRootExec

All Implemented Interfaces:

AutoCloseable, RootExec

public class BroadcastSenderRootExec
extends BaseRootExec

Broadcast Sender broadcasts incoming batches to all receivers (one or more). This is useful in cases such as broadcast join where sending the entire table to join to all nodes is cheaper than merging and computing all the joins in the same node.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	BroadcastSenderRootExec.Metric

Field Summary

Fields inherited from class org.apache.drill.exec.physical.impl.BaseRootExec

fragmentContext, oContext, stats

Constructor Summary

Constructors

Constructor and Description
BroadcastSenderRootExec(FragmentContext context, RecordBatch incoming, BroadcastSender config)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	innerNext()
void	updateStats(FragmentWritableBatch writableBatch)

Methods inherited from class org.apache.drill.exec.physical.impl.BaseRootExec

close, next, next, receivingFragmentFinished

Methods inherited from class java.lang.Object

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

Constructor Detail

BroadcastSenderRootExec

public BroadcastSenderRootExec(FragmentContext context,
                       RecordBatch incoming,
                       BroadcastSender config)
                        throws OutOfMemoryException

Throws:

OutOfMemoryException

Method Detail

innerNext

public boolean innerNext()

Specified by:

innerNext in class BaseRootExec

updateStats

public void updateStats(FragmentWritableBatch writableBatch)