Package org.apache.drill.exec.physical.config

Class UnionAll

java.lang.Object

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

org.apache.drill.exec.physical.base.AbstractMultiple

org.apache.drill.exec.physical.config.UnionAll

All Implemented Interfaces:

Iterable<PhysicalOperator>, GraphValue<PhysicalOperator>, PhysicalOperator

public class UnionAll
extends AbstractMultiple

Field Summary

Fields

Modifier and Type	Field	Description
static final String	OPERATOR_TYPE

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

children

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

INIT_ALLOCATION, initialAllocation, MAX_ALLOCATION, maxAllocation, userName

Constructor Summary

Constructors

Constructor	Description
UnionAll(List<PhysicalOperator> children)

Method Summary

Modifier and Type	Method	Description
<T, X, E extends Throwable> T	accept(PhysicalVisitor<T,X,E> physicalVisitor, X value)	Provides capability to build a set of output based on traversing a query graph tree.
PhysicalOperator	getNewWithChildren(List<PhysicalOperator> children)	Regenerate with this node with a new set of children.
String	getOperatorType()

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

getChildren, 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

Field Details

OPERATOR_TYPE

public static final String OPERATOR_TYPE

See Also:

• Constant Field Values

Constructor Details

UnionAll

public UnionAll(List<PhysicalOperator> children)

Method Details

accept

public <T,
X,
E extends Throwable> T accept(PhysicalVisitor<T,X,E> physicalVisitor,
 X value)
                                   throws E

Description copied from interface: PhysicalOperator

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

Throws:

E extends Throwable

getNewWithChildren

public 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.

getOperatorType

public String getOperatorType()