org.apache.drill.exec.physical.impl

Class BaseRootExec

java.lang.Object

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

All Implemented Interfaces:

AutoCloseable, RootExec

Direct Known Subclasses:

BroadcastSenderRootExec, PartitionSenderRootExec, ScreenCreator.ScreenRoot, SingleSenderCreator.SingleSenderRootExec

public abstract class BaseRootExec
extends Object
implements RootExec

Field Summary

Fields

Modifier and Type	Field and Description
protected FragmentContext	fragmentContext
protected OperatorContext	oContext
protected OperatorStats	stats

Constructor Summary

Constructors

Constructor and Description
BaseRootExec(FragmentContext fragmentContext, OperatorContext oContext, PhysicalOperator config)
BaseRootExec(FragmentContext fragmentContext, PhysicalOperator config)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
abstract boolean	innerNext()
boolean	next() Do the next batch of work.
RecordBatch.IterOutcome	next(RecordBatch b)
void	receivingFragmentFinished(ExecProtos.FragmentHandle handle) Inform sender that receiving fragment is finished and doesn't need any more data

Methods inherited from class java.lang.Object

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

Field Detail

stats

protected OperatorStats stats

oContext

protected OperatorContext oContext

fragmentContext

protected FragmentContext fragmentContext

Constructor Detail

BaseRootExec

public BaseRootExec(FragmentContext fragmentContext,
            PhysicalOperator config)
             throws OutOfMemoryException

Throws:

OutOfMemoryException

BaseRootExec

public BaseRootExec(FragmentContext fragmentContext,
            OperatorContext oContext,
            PhysicalOperator config)
             throws OutOfMemoryException

Throws:

OutOfMemoryException

Method Detail

next

public final boolean next()

Description copied from interface: RootExec

Do the next batch of work.

Specified by:

next in interface RootExec

Returns:

Whether or not additional batches of work are necessary. False means that this fragment is done.

next

public final RecordBatch.IterOutcome next(RecordBatch b)

innerNext

public abstract boolean innerNext()

receivingFragmentFinished

public void receivingFragmentFinished(ExecProtos.FragmentHandle handle)

Description copied from interface: RootExec

Inform sender that receiving fragment is finished and doesn't need any more data

Specified by:

receivingFragmentFinished in interface RootExec

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception