org.apache.calcite.adapter.enumerable

Class EnumerableCalc

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Calc

org.apache.calcite.adapter.enumerable.EnumerableCalc

All Implemented Interfaces:

Cloneable, EnumerableRel, RelOptNode, Hintable, PhysicalNode, RelNode

public class EnumerableCalc
extends Calc
implements EnumerableRel

Implementation of Calc in enumerable calling convention.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.calcite.adapter.enumerable.EnumerableRel

EnumerableRel.Prefer, EnumerableRel.Result

Nested classes/interfaces inherited from interface org.apache.calcite.rel.RelNode

RelNode.Context

Field Summary

Fields inherited from class org.apache.calcite.rel.core.Calc

hints, program

Fields inherited from class org.apache.calcite.rel.SingleRel

input

Fields inherited from class org.apache.calcite.rel.AbstractRelNode

digest, id, rowType, traitSet

Constructor Summary

Constructors

Constructor and Description
EnumerableCalc(RelOptCluster cluster, RelTraitSet traitSet, RelNode input, RexProgram program) Creates an EnumerableCalc.
EnumerableCalc(RelOptCluster cluster, RelTraitSet traitSet, RelNode input, RexProgram program, List<RelCollation> collationList) Deprecated.

Method Summary

Modifier and Type	Method and Description
EnumerableCalc	copy(RelTraitSet traitSet, RelNode child, RexProgram program) Creates a copy of this Calc.
static EnumerableCalc	create(RelNode input, RexProgram program) Creates an EnumerableCalc.
@Nullable Pair<RelTraitSet,List<RelTraitSet>>	deriveTraits(RelTraitSet childTraits, int childId) Derive traitset from child node, returns a pair of traits after traits derivation.
RexProgram	getProgram()
EnumerableRel.Result	implement(EnumerableRelImplementor implementor, EnumerableRel.Prefer pref) Creates a plan for this expression according to a calling convention.
@Nullable Pair<RelTraitSet,List<RelTraitSet>>	passThroughTraits(RelTraitSet required) Pass required traitset from parent node to child nodes, returns a pair of traits after traits is passed down.

Methods inherited from class org.apache.calcite.rel.core.Calc

accept, computeSelfCost, containsOver, copy, copy, estimateRowCount, explainTerms, getHints, isValid

Methods inherited from class org.apache.calcite.rel.SingleRel

childrenAccept, deriveRowType, getInput, getInputs, replaceInput

Methods inherited from class org.apache.calcite.rel.AbstractRelNode

accept, collectVariablesSet, collectVariablesUsed, deepEquals, deepHashCode, equals, explain, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getRelDigest, getRelTypeName, getRowType, getTable, getTraitSet, getVariablesSet, hashCode, isEnforcer, metadata, onRegister, recomputeDigest, register, sole, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.calcite.adapter.enumerable.EnumerableRel

getDeriveMode

Methods inherited from interface org.apache.calcite.rel.PhysicalNode

derive, derive, passThrough

Methods inherited from interface org.apache.calcite.rel.RelNode

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, copy, deepEquals, deepHashCode, estimateRowCount, explain, explain, fieldIsNullable, getConvention, getCorrelVariable, getDigest, getExpectedInputRowType, getInput, getInputs, getRelDigest, getRelTypeName, getRowType, getTable, getVariablesSet, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput

Methods inherited from interface org.apache.calcite.plan.RelOptNode

getCluster, getDescription, getId, getTraitSet

Methods inherited from interface org.apache.calcite.rel.hint.Hintable

attachHints, withHints

Constructor Detail

EnumerableCalc

public EnumerableCalc(RelOptCluster cluster,
                      RelTraitSet traitSet,
                      RelNode input,
                      RexProgram program)

Creates an EnumerableCalc.

Use create(org.apache.calcite.rel.RelNode, org.apache.calcite.rex.RexProgram) unless you know what you're doing.

EnumerableCalc

@Deprecated
public EnumerableCalc(RelOptCluster cluster,
                                  RelTraitSet traitSet,
                                  RelNode input,
                                  RexProgram program,
                                  List<RelCollation> collationList)

Deprecated.

Method Detail

create

public static EnumerableCalc create(RelNode input,
                                    RexProgram program)

Creates an EnumerableCalc.

copy

public EnumerableCalc copy(RelTraitSet traitSet,
                           RelNode child,
                           RexProgram program)

Description copied from class: Calc

Creates a copy of this Calc.

Specified by:

copy in class Calc

Parameters:

traitSet - Traits

child - Input relation

program - Calc program

Returns:

New Calc if any parameter differs from the value of this Calc, or just this if all the parameters are the same

See Also:

Calc.copy(org.apache.calcite.plan.RelTraitSet, java.util.List)

implement

public EnumerableRel.Result implement(EnumerableRelImplementor implementor,
                                      EnumerableRel.Prefer pref)

Description copied from interface: EnumerableRel

Creates a plan for this expression according to a calling convention.

Specified by:

implement in interface EnumerableRel

Parameters:

implementor - Implementor

pref - Preferred representation for rows in result expression

Returns:

Plan for this expression according to a calling convention

passThroughTraits

public @Nullable Pair<RelTraitSet,List<RelTraitSet>> passThroughTraits(RelTraitSet required)

Description copied from interface: PhysicalNode

Pass required traitset from parent node to child nodes, returns a pair of traits after traits is passed down.

Pair.left: the new traitset

Pair.right: the list of required traitsets for child nodes

Specified by:

passThroughTraits in interface EnumerableRel

Specified by:

passThroughTraits in interface PhysicalNode

deriveTraits

public @Nullable Pair<RelTraitSet,List<RelTraitSet>> deriveTraits(RelTraitSet childTraits,
                                                                  int childId)

Description copied from interface: PhysicalNode

Derive traitset from child node, returns a pair of traits after traits derivation.

Pair.left: the new traitset

Pair.right: the list of required traitsets for child nodes

Specified by:

deriveTraits in interface EnumerableRel

Specified by:

deriveTraits in interface PhysicalNode

getProgram

public RexProgram getProgram()

Overrides:

getProgram in class Calc