Package org.apache.drill.exec.physical.base

Class AbstractSingle

java.lang.Object

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

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

All Implemented Interfaces:

Iterable<PhysicalOperator>, GraphValue<PhysicalOperator>, PhysicalOperator

Direct Known Subclasses:

AbstractExchange, AbstractSender, AbstractStore, AbstractWriter, ComplexToJson, Filter, FlattenPOP, HashAggregate, IteratorValidator, Limit, MetadataHandlerPOP, ProducerConsumer, Project, RuntimeFilterPOP, SelectionVectorRemover, Sort, StatisticsMerge, StreamingAggregate, TableModify, Trace, UnpivotMaps, WindowPOP

public abstract class AbstractSingle
extends AbstractBase

Describes an operator that expects a single child operator as its input.

Field Summary

Fields

Modifier and Type	Field	Description
protected final PhysicalOperator	child

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

INIT_ALLOCATION, initialAllocation, MAX_ALLOCATION, maxAllocation, userName

Constructor Summary

Constructors

Constructor	Description
AbstractSingle(PhysicalOperator child)

Method Summary

Modifier and Type	Method	Description
PhysicalOperator	getChild()
protected abstract PhysicalOperator	getNewWithChild(PhysicalOperator child)
final PhysicalOperator	getNewWithChildren(List<PhysicalOperator> children)	Regenerate with this node with a new set of children.
Iterator<PhysicalOperator>	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 java.lang.Iterable

forEach, spliterator

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

accept, getOperatorType

Field Details

child

protected final PhysicalOperator child

Constructor Details

AbstractSingle

public AbstractSingle(PhysicalOperator child)

Method Details

iterator

public Iterator<PhysicalOperator> iterator()

getChild

public PhysicalOperator getChild()

getNewWithChildren

public final PhysicalOperator getNewWithChildren(List<PhysicalOperator> children)

Description copied from interface: PhysicalOperator

Regenerate with this node with a new set of children. This is used in the case of materialization or optimization.

getNewWithChild

protected abstract PhysicalOperator getNewWithChild(PhysicalOperator child)