org.apache.drill.exec.planner.fragment

Class Wrapper

java.lang.Object

org.apache.drill.exec.planner.fragment.Wrapper

public class Wrapper
extends Object

A wrapping class that allows us to add additional information to each fragment node for planning purposes.

Constructor Summary

Constructors

Constructor and Description
Wrapper(Fragment node, int majorFragmentId)

Method Summary

Methods

Modifier and Type	Method and Description
void	addAllocation(PhysicalOperator pop)
void	addFragmentDependency(Wrapper dependsOn) Add a parallelization dependency on given fragment.
void	assignEndpoints(List<CoordinationProtos.DrillbitEndpoint> assignedEndpoints)
CoordinationProtos.DrillbitEndpoint	getAssignedEndpoint(int minorFragmentId)
List<CoordinationProtos.DrillbitEndpoint>	getAssignedEndpoints()
List<Wrapper>	getFragmentDependencies() Get the list of fragements this particular fragment depends for determining its
long	getInitialAllocation()
int	getMajorFragmentId()
long	getMaxAllocation()
Fragment	getNode()
Stats	getStats()
int	getWidth()
boolean	isEndpointsAssignmentDone() Is the endpoints assignment done for this fragment?
void	resetAllocation()
void	setWidth(int width)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Wrapper

public Wrapper(Fragment node,
       int majorFragmentId)

Method Detail

getStats

public Stats getStats()

resetAllocation

public void resetAllocation()

getMajorFragmentId

public int getMajorFragmentId()

getWidth

public int getWidth()

setWidth

public void setWidth(int width)

getNode

public Fragment getNode()

getInitialAllocation

public long getInitialAllocation()

getMaxAllocation

public long getMaxAllocation()

addAllocation

public void addAllocation(PhysicalOperator pop)

assignEndpoints

public void assignEndpoints(List<CoordinationProtos.DrillbitEndpoint> assignedEndpoints)
                     throws PhysicalOperatorSetupException

Throws:

PhysicalOperatorSetupException

toString

public String toString()

Overrides:

toString in class Object

getAssignedEndpoints

public List<CoordinationProtos.DrillbitEndpoint> getAssignedEndpoints()

getAssignedEndpoint

public CoordinationProtos.DrillbitEndpoint getAssignedEndpoint(int minorFragmentId)

addFragmentDependency

public void addFragmentDependency(Wrapper dependsOn)

Add a parallelization dependency on given fragment.

Parameters:

dependsOn -

isEndpointsAssignmentDone

public boolean isEndpointsAssignmentDone()

Is the endpoints assignment done for this fragment?

Returns:

getFragmentDependencies

public List<Wrapper> getFragmentDependencies()

Get the list of fragements this particular fragment depends for determining its

Returns: