org.apache.kylin.query.relnode

Class OLAPProjectRel

java.lang.Object

org.eigenbase.rel.AbstractRelNode

org.eigenbase.rel.SingleRel

org.eigenbase.rel.ProjectRelBase

org.apache.kylin.query.relnode.OLAPProjectRel

All Implemented Interfaces:

Cloneable, net.hydromatic.optiq.rules.java.EnumerableRel, OLAPRel, org.eigenbase.rel.RelNode, org.eigenbase.relopt.RelOptNode

public class OLAPProjectRel
extends org.eigenbase.rel.ProjectRelBase
implements OLAPRel, net.hydromatic.optiq.rules.java.EnumerableRel

Author:

xjiang

Nested Class Summary

Nested classes/interfaces inherited from class org.eigenbase.rel.ProjectRelBase

org.eigenbase.rel.ProjectRelBase.Flags

Nested classes/interfaces inherited from interface org.apache.kylin.query.relnode.OLAPRel

OLAPRel.JavaImplementor, OLAPRel.OLAPImplementor, OLAPRel.RewriteImplementor

Nested classes/interfaces inherited from interface net.hydromatic.optiq.rules.java.EnumerableRel

net.hydromatic.optiq.rules.java.EnumerableRel.Prefer, net.hydromatic.optiq.rules.java.EnumerableRel.Result

Field Summary

Fields inherited from class org.eigenbase.rel.ProjectRelBase

collationList, exps, flags

Fields inherited from class org.eigenbase.rel.AbstractRelNode

digest, id, rowType, traitSet

Fields inherited from interface org.apache.kylin.query.relnode.OLAPRel

CONVENTION, logger

Constructor Summary

Constructors

Constructor and Description
OLAPProjectRel(org.eigenbase.relopt.RelOptCluster cluster, org.eigenbase.relopt.RelTraitSet traitSet, org.eigenbase.rel.RelNode child, List<org.eigenbase.rex.RexNode> exps, org.eigenbase.reltype.RelDataType rowType, int flags)

Method Summary

Methods

Modifier and Type	Method and Description
org.eigenbase.relopt.RelOptCost	computeSelfCost(org.eigenbase.relopt.RelOptPlanner planner)
org.eigenbase.rel.ProjectRelBase	copy(org.eigenbase.relopt.RelTraitSet traitSet, org.eigenbase.rel.RelNode child, List<org.eigenbase.rex.RexNode> exps, org.eigenbase.reltype.RelDataType rowType)
List<org.eigenbase.rex.RexNode>	getChildExps()
ColumnRowType	getColumnRowType() get the row type of ColumnDesc
OLAPContext	getContext() get olap context
List<org.eigenbase.rex.RexNode>	getProjects()
boolean	hasSubQuery() whether has sub query
net.hydromatic.optiq.rules.java.EnumerableRel.Result	implement(net.hydromatic.optiq.rules.java.EnumerableRelImplementor implementor, net.hydromatic.optiq.rules.java.EnumerableRel.Prefer pref)
void	implementOLAP(OLAPRel.OLAPImplementor implementor)
void	implementRewrite(OLAPRel.RewriteImplementor implementor)
org.eigenbase.relopt.RelTraitSet	replaceTraitSet(org.eigenbase.relopt.RelTrait trait) replace RelTraitSet

Methods inherited from class org.eigenbase.rel.ProjectRelBase

copy, explainTerms, getCollationList, getFlags, getMapping, getMapping, getNamedProjects, getPermutation, isBoxed, isMapping, isValid

Methods inherited from class org.eigenbase.rel.SingleRel

childrenAccept, deriveRowType, getChild, getInputs, getRows, replaceInput

Methods inherited from class org.eigenbase.rel.AbstractRelNode

accept, collectVariablesSet, collectVariablesUsed, computeDigest, explain, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getOrCreateCorrelVariable, getQuery, getRelTypeName, getRowType, getTable, getTraitSet, getVariablesStopped, isDistinct, isKey, metadata, onRegister, recomputeDigest, register, registerCorrelVariable, setCorrelVariable, sole, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eigenbase.rel.RelNode

accept, childrenAccept, collectVariablesSet, collectVariablesUsed, copy, explain, 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

Constructor Detail

OLAPProjectRel

public OLAPProjectRel(org.eigenbase.relopt.RelOptCluster cluster,
              org.eigenbase.relopt.RelTraitSet traitSet,
              org.eigenbase.rel.RelNode child,
              List<org.eigenbase.rex.RexNode> exps,
              org.eigenbase.reltype.RelDataType rowType,
              int flags)

Method Detail

getChildExps

public List<org.eigenbase.rex.RexNode> getChildExps()

Specified by:

getChildExps in interface org.eigenbase.rel.RelNode

Overrides:

getChildExps in class org.eigenbase.rel.ProjectRelBase

getProjects

public List<org.eigenbase.rex.RexNode> getProjects()

Overrides:

getProjects in class org.eigenbase.rel.ProjectRelBase

computeSelfCost

public org.eigenbase.relopt.RelOptCost computeSelfCost(org.eigenbase.relopt.RelOptPlanner planner)

Specified by:

computeSelfCost in interface org.eigenbase.rel.RelNode

Overrides:

computeSelfCost in class org.eigenbase.rel.ProjectRelBase

copy

public org.eigenbase.rel.ProjectRelBase copy(org.eigenbase.relopt.RelTraitSet traitSet,
                                    org.eigenbase.rel.RelNode child,
                                    List<org.eigenbase.rex.RexNode> exps,
                                    org.eigenbase.reltype.RelDataType rowType)

Specified by:

copy in class org.eigenbase.rel.ProjectRelBase

implementOLAP

public void implementOLAP(OLAPRel.OLAPImplementor implementor)

Specified by:

implementOLAP in interface OLAPRel

implement

public net.hydromatic.optiq.rules.java.EnumerableRel.Result implement(net.hydromatic.optiq.rules.java.EnumerableRelImplementor implementor,
                                                             net.hydromatic.optiq.rules.java.EnumerableRel.Prefer pref)

Specified by:

implement in interface net.hydromatic.optiq.rules.java.EnumerableRel

getColumnRowType

public ColumnRowType getColumnRowType()

Description copied from interface: OLAPRel

get the row type of ColumnDesc

Specified by:

getColumnRowType in interface OLAPRel

Returns:

implementRewrite

public void implementRewrite(OLAPRel.RewriteImplementor implementor)

Specified by:

implementRewrite in interface OLAPRel

getContext

public OLAPContext getContext()

Description copied from interface: OLAPRel

get olap context

Specified by:

getContext in interface OLAPRel

hasSubQuery

public boolean hasSubQuery()

Description copied from interface: OLAPRel

whether has sub query

Specified by:

hasSubQuery in interface OLAPRel

replaceTraitSet

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

Description copied from interface: OLAPRel

replace RelTraitSet

Specified by:

replaceTraitSet in interface OLAPRel