Package org.apache.drill.common.logical.data

Class Flatten

java.lang.Object

org.apache.drill.common.logical.data.LogicalOperatorBase

org.apache.drill.common.logical.data.SingleInputOperator

org.apache.drill.common.logical.data.Flatten

All Implemented Interfaces:

Iterable<LogicalOperator>, GraphValue<LogicalOperator>, LogicalOperator

public class Flatten
extends SingleInputOperator

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.drill.common.logical.data.LogicalOperator

LogicalOperator.NodeBuilder<T extends LogicalOperator>

Constructor Summary

Constructors

Constructor	Description
Flatten(FieldReference name, LogicalExpression expr, boolean drop)

Method Summary

Modifier and Type	Method	Description
<T, X, E extends Throwable> T	accept(LogicalVisitor<T,X,E> logicalVisitor, X value)	Provides capability to build a set of output based on traversing a query graph tree.
LogicalExpression	getExpr()
FieldReference	getName()
boolean	isDrop()
Iterator<LogicalOperator>	iterator()

Methods inherited from class org.apache.drill.common.logical.data.SingleInputOperator

getInput, setInput

Methods inherited from class org.apache.drill.common.logical.data.LogicalOperatorBase

accept, equals, getMemo, hashCode, nodeBuilder, registerAsSubscriber, setMemo, setupAndValidate, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

Flatten

public Flatten(FieldReference name,
 LogicalExpression expr,
 boolean drop)

Method Details

getName

public FieldReference getName()

getExpr

public LogicalExpression getExpr()

isDrop

public boolean isDrop()

accept

public <T,
X,
E extends Throwable> T accept(LogicalVisitor<T,X,E> logicalVisitor,
 X value)
                                     throws E

Description copied from interface: LogicalOperator

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

Parameters:

logicalVisitor -

Returns:

Throws:

E

iterator

public Iterator<LogicalOperator> iterator()

Specified by:

iterator in interface Iterable<LogicalOperator>

Overrides:

iterator in class SingleInputOperator