org.apache.drill.exec.planner.fragment.contrib

Class OperatorIdVisitor

java.lang.Object

org.apache.drill.exec.physical.base.AbstractPhysicalVisitor<PhysicalOperator,Integer,ExecutionSetupException>

org.apache.drill.exec.planner.fragment.contrib.OperatorIdVisitor

All Implemented Interfaces:

PhysicalVisitor<PhysicalOperator,Integer,ExecutionSetupException>

public class OperatorIdVisitor
extends AbstractPhysicalVisitor<PhysicalOperator,Integer,ExecutionSetupException>

Visitor to renumber operators - needed after materialization is done as some operators may be removed using @ExtendedMaterializerVisitor

Field Summary

Fields

Modifier and Type	Field and Description
static OperatorIdVisitor	INSTANCE

Method Summary

Modifier and Type	Method and Description
PhysicalOperator	visitOp(PhysicalOperator op, Integer parentOpId)
PhysicalOperator	visitSubScan(SubScan subScan, Integer parentOpId)

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

visitBroadcastSender, visitChildren, visitExchange, visitFilter, visitFlatten, visitGroupScan, visitHashAggregate, visitHashPartitionSender, visitHashPartitionSender, visitIteratorValidator, visitLateralJoin, visitLimit, visitMergingReceiver, visitOrderedPartitionSender, visitProducerConsumer, visitProject, visitRangePartitionSender, visitReceiver, visitRowKeyJoin, visitScreen, visitSender, visitSingleSender, visitSort, visitStatisticsAggregate, visitStatisticsMerge, visitStore, visitStreamingAggregate, visitTrace, visitUnion, visitUnnest, visitUnorderedReceiver, visitUnpivot, visitValues, visitWindowFrame, visitWriter

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final OperatorIdVisitor INSTANCE

Method Detail

visitSubScan

public PhysicalOperator visitSubScan(SubScan subScan,
                                     Integer parentOpId)
                              throws ExecutionSetupException

Specified by:

visitSubScan in interface PhysicalVisitor<PhysicalOperator,Integer,ExecutionSetupException>

Overrides:

visitSubScan in class AbstractPhysicalVisitor<PhysicalOperator,Integer,ExecutionSetupException>

Throws:

ExecutionSetupException

visitOp

public PhysicalOperator visitOp(PhysicalOperator op,
                                Integer parentOpId)
                         throws ExecutionSetupException

Specified by:

visitOp in interface PhysicalVisitor<PhysicalOperator,Integer,ExecutionSetupException>

Overrides:

visitOp in class AbstractPhysicalVisitor<PhysicalOperator,Integer,ExecutionSetupException>

Throws:

ExecutionSetupException