org.apache.hadoop.hive.ql.optimizer

Class AbstractSMBJoinProc

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.AbstractBucketJoinProc

org.apache.hadoop.hive.ql.optimizer.AbstractSMBJoinProc

All Implemented Interfaces:

NodeProcessor

Direct Known Subclasses:

SortedMergeBucketMapjoinProc, SortedMergeJoinProc

public abstract class AbstractSMBJoinProc
extends AbstractBucketJoinProc
implements NodeProcessor

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.optimizer.AbstractBucketJoinProc

pGraphContext

Constructor Summary

Constructors

Constructor and Description
AbstractSMBJoinProc()
AbstractSMBJoinProc(ParseContext pctx)

Method Summary

Modifier and Type	Method and Description
protected boolean	canConvertBucketMapJoinToSMBJoin(MapJoinOperator mapJoinOp, java.util.Stack<Node> stack, SortBucketJoinProcCtx smbJoinContext, java.lang.Object... nodeOutputs)
protected boolean	canConvertJoinToBucketMapJoin(JoinOperator joinOp, ParseContext pGraphContext, SortBucketJoinProcCtx context)
protected boolean	canConvertJoinToSMBJoin(JoinOperator joinOperator, SortBucketJoinProcCtx smbJoinContext, ParseContext pGraphContext)
protected boolean	checkConvertJoinToSMBJoin(JoinOperator joinOperator, SortBucketJoinProcCtx smbJoinContext, ParseContext pGraphContext)
protected SMBMapJoinOperator	convertBucketMapJoinToSMBJoin(MapJoinOperator mapJoinOp, SortBucketJoinProcCtx smbJoinContext, ParseContext parseContext)
protected MapJoinOperator	convertJoinToBucketMapJoin(JoinOperator joinOp, SortBucketJoinProcCtx joinContext, ParseContext parseContext)
protected void	convertJoinToSMBJoin(JoinOperator joinOp, SortBucketJoinProcCtx smbJoinContext, ParseContext parseContext)
abstract java.lang.Object	process(Node nd, java.util.Stack<Node> stack, NodeProcessorCtx procCtx, java.lang.Object... nodeOutputs) Generic process for all ops that don't have specific implementations.

Methods inherited from class org.apache.hadoop.hive.ql.optimizer.AbstractBucketJoinProc

canConvertMapJoinToBucketMapJoin, checkConvertBucketMapJoin, convertMapJoinToBucketMapJoin, toColumns

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractSMBJoinProc

public AbstractSMBJoinProc(ParseContext pctx)

AbstractSMBJoinProc

public AbstractSMBJoinProc()

Method Detail

process

public abstract java.lang.Object process(Node nd,
                                         java.util.Stack<Node> stack,
                                         NodeProcessorCtx procCtx,
                                         java.lang.Object... nodeOutputs)
                                  throws SemanticException

Description copied from interface: NodeProcessor

Generic process for all ops that don't have specific implementations.

Specified by:

process in interface NodeProcessor

Specified by:

process in class AbstractBucketJoinProc

Parameters:

nd - operator to process

procCtx - operator processor context

nodeOutputs - A variable argument list of outputs from other nodes in the walk

Returns:

Object to be returned by the process call

Throws:

SemanticException

canConvertBucketMapJoinToSMBJoin

protected boolean canConvertBucketMapJoinToSMBJoin(MapJoinOperator mapJoinOp,
                                                   java.util.Stack<Node> stack,
                                                   SortBucketJoinProcCtx smbJoinContext,
                                                   java.lang.Object... nodeOutputs)
                                            throws SemanticException

Throws:

SemanticException

convertBucketMapJoinToSMBJoin

protected SMBMapJoinOperator convertBucketMapJoinToSMBJoin(MapJoinOperator mapJoinOp,
                                                           SortBucketJoinProcCtx smbJoinContext,
                                                           ParseContext parseContext)

checkConvertJoinToSMBJoin

protected boolean checkConvertJoinToSMBJoin(JoinOperator joinOperator,
                                            SortBucketJoinProcCtx smbJoinContext,
                                            ParseContext pGraphContext)
                                     throws SemanticException

Throws:

SemanticException

canConvertJoinToSMBJoin

protected boolean canConvertJoinToSMBJoin(JoinOperator joinOperator,
                                          SortBucketJoinProcCtx smbJoinContext,
                                          ParseContext pGraphContext)
                                   throws SemanticException

Throws:

SemanticException

canConvertJoinToBucketMapJoin

protected boolean canConvertJoinToBucketMapJoin(JoinOperator joinOp,
                                                ParseContext pGraphContext,
                                                SortBucketJoinProcCtx context)
                                         throws SemanticException

Throws:

SemanticException

convertJoinToBucketMapJoin

protected MapJoinOperator convertJoinToBucketMapJoin(JoinOperator joinOp,
                                                     SortBucketJoinProcCtx joinContext,
                                                     ParseContext parseContext)
                                              throws SemanticException

Throws:

SemanticException

convertJoinToSMBJoin

protected void convertJoinToSMBJoin(JoinOperator joinOp,
                                    SortBucketJoinProcCtx smbJoinContext,
                                    ParseContext parseContext)
                             throws SemanticException

Throws:

SemanticException