Package org.apache.drill.exec.physical.config

Class SingleSender

java.lang.Object

org.apache.drill.exec.physical.base.AbstractBase

org.apache.drill.exec.physical.base.AbstractSingle

org.apache.drill.exec.physical.base.AbstractSender

org.apache.drill.exec.physical.config.SingleSender

All Implemented Interfaces:

Iterable<PhysicalOperator>, GraphValue<PhysicalOperator>, FragmentLeaf, FragmentRoot, PhysicalOperator, Sender

public class SingleSender
extends AbstractSender

Sender that pushes all data to a single destination node.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	OPERATOR_TYPE

Fields inherited from class org.apache.drill.exec.physical.base.AbstractSender

destinations, oppositeMajorFragmentId

Fields inherited from class org.apache.drill.exec.physical.base.AbstractSingle

child

Fields inherited from class org.apache.drill.exec.physical.base.AbstractBase

INIT_ALLOCATION, initialAllocation, MAX_ALLOCATION, maxAllocation, userName

Constructor Summary

Constructors

Constructor	Description
SingleSender(int oppositeMajorFragmentId, int oppositeMinorFragmentId, PhysicalOperator child, CoordinationProtos.DrillbitEndpoint destination)	Create a SingleSender which sends data to fragment identified by given MajorFragmentId and MinorFragmentId, and running at given endpoint
SingleSender(int oppositeMajorFragmentId, PhysicalOperator child, CoordinationProtos.DrillbitEndpoint destination)	Create a SingleSender which sends data to fragment with MinorFragmentId as 0 in given opposite major fragment.

Method Summary

Modifier and Type	Method	Description
<T, X, E extends Throwable> T	accept(PhysicalVisitor<T,X,E> physicalVisitor, X value)	Provides capability to build a set of output based on traversing a query graph tree.
CoordinationProtos.DrillbitEndpoint	getDestination()
List<MinorFragmentEndpoint>	getDestinations()	Get the list of destination endpoints that this Sender will be communicating with.
protected PhysicalOperator	getNewWithChild(PhysicalOperator child)
String	getOperatorType()
int	getOppositeMinorFragmentId()

Methods inherited from class org.apache.drill.exec.physical.base.AbstractSender

getOppositeMajorFragmentId

Methods inherited from class org.apache.drill.exec.physical.base.AbstractSingle

getChild, getNewWithChildren, iterator

Methods inherited from class org.apache.drill.exec.physical.base.AbstractBase

accept, getCost, getInitialAllocation, getMaxAllocation, getOperatorId, getSVMode, getUserName, isBufferedOperator, isExecutable, setCost, setMaxAllocation, setOperatorId

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.drill.common.graph.GraphValue

accept

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Methods inherited from interface org.apache.drill.exec.physical.base.PhysicalOperator

getCost, getInitialAllocation, getMaxAllocation, getNewWithChildren, getOperatorId, getSVMode, getUserName, isBufferedOperator, isExecutable, setCost, setMaxAllocation, setOperatorId

Field Details

OPERATOR_TYPE

public static final String OPERATOR_TYPE

See Also:

• Constant Field Values

Constructor Details

SingleSender

public SingleSender(int oppositeMajorFragmentId,
 int oppositeMinorFragmentId,
 PhysicalOperator child,
 CoordinationProtos.DrillbitEndpoint destination)

Create a SingleSender which sends data to fragment identified by given MajorFragmentId and MinorFragmentId, and running at given endpoint

Parameters:

oppositeMajorFragmentId - MajorFragmentId of the receiver fragment.

oppositeMinorFragmentId - MinorFragmentId of the receiver fragment.

child - Child operator

destination - Drillbit endpoint where the receiver fragment is running.

SingleSender

public SingleSender(int oppositeMajorFragmentId,
 PhysicalOperator child,
 CoordinationProtos.DrillbitEndpoint destination)

Create a SingleSender which sends data to fragment with MinorFragmentId as 0 in given opposite major fragment.

Parameters:

oppositeMajorFragmentId - MajorFragmentId of the receiver fragment.

child - Child operator

destination - Drillbit endpoint where the receiver fragment is running.

Method Details

getDestinations

public List<MinorFragmentEndpoint> getDestinations()

Description copied from interface: Sender

Get the list of destination endpoints that this Sender will be communicating with.

Specified by:

getDestinations in interface Sender

Overrides:

getDestinations in class AbstractSender

Returns:

List of receiver MinorFragmentEndpoints each containing receiver fragment MinorFragmentId and endpoint where it is running.

getNewWithChild

protected PhysicalOperator getNewWithChild(PhysicalOperator child)

Specified by:

getNewWithChild in class AbstractSingle

accept

public <T,
X,
E extends Throwable> T accept(PhysicalVisitor<T,X,E> physicalVisitor,
 X value)
                                   throws E

Description copied from interface: PhysicalOperator

Provides capability to build a set of output based on traversing a query graph tree.

Specified by:

accept in interface PhysicalOperator

Overrides:

accept in class AbstractSender

Throws:

E extends Throwable

getDestination

public CoordinationProtos.DrillbitEndpoint getDestination()

getOppositeMinorFragmentId

public int getOppositeMinorFragmentId()

getOperatorType

public String getOperatorType()