org.apache.kylin.query.relnode

Interface OLAPRel

All Superinterfaces:

Cloneable, org.eigenbase.rel.RelNode, org.eigenbase.relopt.RelOptNode

All Known Implementing Classes:

OLAPAggregateRel, OLAPFilterRel, OLAPJoinRel, OLAPLimitRel, OLAPProjectRel, OLAPSortRel, OLAPTableScan

public interface OLAPRel
extends org.eigenbase.rel.RelNode

Author:

xjiang

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	OLAPRel.JavaImplementor implementor for java generation
static class	OLAPRel.OLAPImplementor visitor pattern for olap query analysis
static class	OLAPRel.RewriteImplementor visitor pattern for query rewrite

Field Summary

Fields

Modifier and Type	Field and Description
static org.eigenbase.relopt.Convention	CONVENTION
static org.slf4j.Logger	logger

Method Summary

Methods

Modifier and Type	Method and Description
ColumnRowType	getColumnRowType() get the row type of ColumnDesc
OLAPContext	getContext() get olap context
boolean	hasSubQuery() whether has sub query
void	implementOLAP(OLAPRel.OLAPImplementor implementor)
void	implementRewrite(OLAPRel.RewriteImplementor rewriter)
org.eigenbase.relopt.RelTraitSet	replaceTraitSet(org.eigenbase.relopt.RelTrait trait) replace RelTraitSet

Methods inherited from interface org.eigenbase.rel.RelNode

accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, copy, explain, getChildExps, getCollationList, getConvention, getCorrelVariable, getExpectedInputRowType, getInput, getInputs, getOrCreateCorrelVariable, getQuery, getRelTypeName, getRows, getRowType, getTable, getVariablesStopped, isDistinct, isKey, isValid, metadata, onRegister, recomputeDigest, register, registerCorrelVariable, replaceInput, setCorrelVariable

Methods inherited from interface org.eigenbase.relopt.RelOptNode

getCluster, getDescription, getDigest, getId, getTraitSet

Field Detail

logger

static final org.slf4j.Logger logger

CONVENTION

static final org.eigenbase.relopt.Convention CONVENTION

Method Detail

getContext

OLAPContext getContext()

get olap context

getColumnRowType

ColumnRowType getColumnRowType()

get the row type of ColumnDesc

Returns:

hasSubQuery

boolean hasSubQuery()

whether has sub query

replaceTraitSet

org.eigenbase.relopt.RelTraitSet replaceTraitSet(org.eigenbase.relopt.RelTrait trait)

replace RelTraitSet

implementOLAP

void implementOLAP(OLAPRel.OLAPImplementor implementor)

implementRewrite

void implementRewrite(OLAPRel.RewriteImplementor rewriter)