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

Class Transform

java.lang.Object

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

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

org.apache.drill.common.logical.data.Transform

All Implemented Interfaces:

Iterable<LogicalOperator>, GraphValue<LogicalOperator>, LogicalOperator

public class Transform
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
Transform(List<NamedExpression> transforms)

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.
List<NamedExpression>	getTransforms()
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

Transform

public Transform(List<NamedExpression> transforms)

Method Details

getTransforms

public List<NamedExpression> getTransforms()

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.

Returns:

Throws:

E extends Throwable

iterator

public Iterator<LogicalOperator> iterator()

Specified by:

iterator in interface Iterable<LogicalOperator>

Overrides:

iterator in class SingleInputOperator