org.apache.drill.common.logical.data

Class Union

java.lang.Object

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

org.apache.drill.common.logical.data.Union

All Implemented Interfaces:

Iterable<LogicalOperator>, GraphValue<LogicalOperator>, LogicalOperator

public class Union
extends LogicalOperatorBase

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Union.Builder

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

LogicalOperator.NodeBuilder<T extends LogicalOperator>

Constructor Summary

Constructors

Constructor and Description
Union(List<LogicalOperator> inputs, Boolean distinct)

Method Summary

Modifier and Type	Method and 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.
static Union.Builder	builder()
List<LogicalOperator>	getInputs()
boolean	isDistinct()
Iterator<LogicalOperator>	iterator()

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 Detail

Union

public Union(List<LogicalOperator> inputs,
             Boolean distinct)

Method Detail

getInputs

public List<LogicalOperator> getInputs()

isDistinct

public boolean isDistinct()

accept

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

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()

builder

public static Union.Builder builder()