Package org.apache.drill.exec.work

Class QueryWorkUnit

java.lang.Object

org.apache.drill.exec.work.QueryWorkUnit

public class QueryWorkUnit
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	QueryWorkUnit.MinorFragmentDefn	Definition of a minor fragment that contains the (unserialized) fragment operator tree and the (partially built) fragment.

Constructor Summary

Constructors

Constructor	Description
QueryWorkUnit(FragmentRoot rootOperator, QueryWorkUnit.MinorFragmentDefn rootFragmentDefn, List<QueryWorkUnit.MinorFragmentDefn> minorFragmentDefns, Wrapper rootWrapper)

Method Summary

Modifier and Type	Method	Description
void	applyPlan(PhysicalPlanReader reader)
List<BitControl.PlanFragment>	getFragments()
List<QueryWorkUnit.MinorFragmentDefn>	getMinorFragmentDefns()
BitControl.PlanFragment	getRootFragment()
QueryWorkUnit.MinorFragmentDefn	getRootFragmentDefn()
FragmentRoot	getRootOperator()
Wrapper	getRootWrapper()
String	stringifyFragments()	Converts list of stored fragments into their string representation, in case of exception returns text indicating that string was malformed.

Methods inherited from class java.lang.Object

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

Constructor Details

QueryWorkUnit

public QueryWorkUnit(FragmentRoot rootOperator,
 QueryWorkUnit.MinorFragmentDefn rootFragmentDefn,
 List<QueryWorkUnit.MinorFragmentDefn> minorFragmentDefns,
 Wrapper rootWrapper)

Method Details

getRootFragment

public BitControl.PlanFragment getRootFragment()

getRootFragmentDefn

public QueryWorkUnit.MinorFragmentDefn getRootFragmentDefn()

getFragments

public List<BitControl.PlanFragment> getFragments()

getMinorFragmentDefns

public List<QueryWorkUnit.MinorFragmentDefn> getMinorFragmentDefns()

getRootOperator

public FragmentRoot getRootOperator()

applyPlan

public void applyPlan(PhysicalPlanReader reader)
               throws ForemanSetupException

Throws:

ForemanSetupException

stringifyFragments

public String stringifyFragments()

Converts list of stored fragments into their string representation, in case of exception returns text indicating that string was malformed. Is used for debugging purposes.

Returns:

fragments information

getRootWrapper

public Wrapper getRootWrapper()