org.apache.hadoop.hive.ql.optimizer.unionproc

Class UnionProcFactory

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcFactory

public final class UnionProcFactory
extends Object

Operator factory for union processing.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	UnionProcFactory.MapRedUnion MapRed subquery followed by Union.
static class	UnionProcFactory.MapUnion Map-only subquery followed by Union.
static class	UnionProcFactory.NoUnion Default processor.
static class	UnionProcFactory.UnionNoProcessFile Union followed by no processing.
static class	UnionProcFactory.UnknownUnion Union subquery followed by Union.

Method Summary

Modifier and Type	Method and Description
static SemanticNodeProcessor	getMapRedUnion()
static SemanticNodeProcessor	getMapUnion()
static SemanticNodeProcessor	getNoUnion()
static int	getPositionParent(UnionOperator union, Stack<Node> stack)
static SemanticNodeProcessor	getUnionNoProcessFile()
static SemanticNodeProcessor	getUnknownUnion()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getPositionParent

public static int getPositionParent(UnionOperator union,
                                    Stack<Node> stack)

getMapRedUnion

public static SemanticNodeProcessor getMapRedUnion()

getMapUnion

public static SemanticNodeProcessor getMapUnion()

getUnknownUnion

public static SemanticNodeProcessor getUnknownUnion()

getNoUnion

public static SemanticNodeProcessor getNoUnion()

getUnionNoProcessFile

public static SemanticNodeProcessor getUnionNoProcessFile()