org.apache.calcite.adapter.spark

Class SparkToEnumerableConverter

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.convert.ConverterImpl

org.apache.calcite.adapter.spark.SparkToEnumerableConverter

All Implemented Interfaces:

Cloneable, EnumerableRel, RelOptNode, Converter, RelNode

public class SparkToEnumerableConverter
extends ConverterImpl
implements EnumerableRel

Relational expression that converts input of Spark convention into EnumerableConvention.

Concretely, this means calling the JavaRDD.collect() method of an RDD and converting it to enumerable.

Nested Class Summary

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

EnumerableRel.Prefer, EnumerableRel.Result

Field Summary

Fields inherited from class org.apache.calcite.rel.convert.ConverterImpl

inTraits, traitDef

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

digest, id, rowType, traitSet

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

FILTER_FACTORY, PROJECT_FACTORY

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SparkToEnumerableConverter(RelOptCluster cluster, RelTraitSet traits, RelNode input)

Method Summary

Methods

Modifier and Type	Method and Description
RelOptCost	computeSelfCost(RelOptPlanner planner)
RelNode	copy(RelTraitSet traitSet, List<RelNode> inputs)
EnumerableRel.Result	implement(EnumerableRelImplementor implementor, EnumerableRel.Prefer pref)

Methods inherited from class org.apache.calcite.rel.convert.ConverterImpl

cannotImplement, getInputTraits, getTraitDef, isDistinct

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

childrenAccept, deriveRowType, explainTerms, getInput, getInputs, getRows, replaceInput

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

accept, accept, collectVariablesSet, collectVariablesUsed, computeDigest, explain, getChildExps, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getQuery, getRelTypeName, getRowType, getTable, getTraitSet, getVariablesStopped, isKey, isValid, metadata, onRegister, recomputeDigest, register, sole, toString

Methods inherited from class java.lang.Object

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

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

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

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

getCluster, getDescription, getDigest, getId, getTraitSet

Methods inherited from interface org.apache.calcite.rel.convert.Converter

getInput

Constructor Detail

SparkToEnumerableConverter

protected SparkToEnumerableConverter(RelOptCluster cluster,
                          RelTraitSet traits,
                          RelNode input)

Method Detail

copy

public RelNode copy(RelTraitSet traitSet,
           List<RelNode> inputs)

Specified by:

copy in interface RelNode

Overrides:

copy in class AbstractRelNode

computeSelfCost

public RelOptCost computeSelfCost(RelOptPlanner planner)

Specified by:

computeSelfCost in interface RelNode

Overrides:

computeSelfCost in class ConverterImpl

implement

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

Specified by:

implement in interface EnumerableRel