org.apache.beam.sdk.extensions.sql.impl.rel

Class BeamIOSourceRel

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.core.TableScan

org.apache.beam.sdk.extensions.sql.impl.rel.BeamIOSourceRel

All Implemented Interfaces:

java.lang.Cloneable, BeamRelNode, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.RelNode

public class BeamIOSourceRel
extends org.apache.calcite.rel.core.TableScan
implements BeamRelNode

BeamRelNode to replace a TableScan node.

Nested Class Summary

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

org.apache.calcite.rel.RelNode.Context

Field Summary

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

table

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

digest, id, rowType, traitSet

Constructor Summary

Constructors

Constructor and Description
BeamIOSourceRel(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelOptTable table, BeamSqlTable sqlTable)

Method Summary

Modifier and Type	Method and Description
protected BeamSqlTable	getBeamSqlTable()
PTransform<PCollectionTuple,PCollection<Row>>	toPTransform() A BeamRelNode is a recursive structure, the BeamQueryPlanner visits it with a DFS(Depth-First-Search) algorithm.

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

accept, computeSelfCost, deriveRowType, estimateRowCount, explainTerms, getCollationList, getTable, identity, identity, project

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

accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeDigest, computeSelfCost, copy, explain, getChildExps, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getInputs, getQuery, getRelTypeName, getRows, getRowType, getTraitSet, getVariablesSet, getVariablesStopped, isDistinct, isKey, isValid, isValid, metadata, onRegister, recomputeDigest, register, replaceInput, 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, computeSelfCost, computeSelfCost, copy, estimateRowCount, explain, getChildExps, getCollationList, getConvention, getCorrelVariable, getExpectedInputRowType, getInput, getInputs, getQuery, getRelTypeName, getRows, getRowType, getTable, getVariablesSet, getVariablesStopped, isDistinct, isKey, isValid, isValid, metadata, onRegister, recomputeDigest, register, replaceInput

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

getCluster, getDescription, getDigest, getId, getTraitSet

Constructor Detail

BeamIOSourceRel

public BeamIOSourceRel(org.apache.calcite.plan.RelOptCluster cluster,
                       org.apache.calcite.plan.RelOptTable table,
                       BeamSqlTable sqlTable)

Method Detail

toPTransform

public PTransform<PCollectionTuple,PCollection<Row>> toPTransform()

Description copied from interface: BeamRelNode

A BeamRelNode is a recursive structure, the BeamQueryPlanner visits it with a DFS(Depth-First-Search) algorithm.

Specified by:

toPTransform in interface BeamRelNode

getBeamSqlTable

protected BeamSqlTable getBeamSqlTable()