org.apache.calcite.adapter.cassandra

Class CassandraTableScan

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.core.TableScan

org.apache.calcite.adapter.cassandra.CassandraTableScan

All Implemented Interfaces:

Cloneable, CassandraRel, RelOptNode, RelNode

public class CassandraTableScan
extends TableScan
implements CassandraRel

Relational expression representing a scan of a Cassandra collection.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.calcite.adapter.cassandra.CassandraRel

CassandraRel.Implementor

Field Summary

Fields

Modifier and Type	Field and Description
(package private) CassandraTable	cassandraTable
(package private) RelDataType	projectRowType

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

table

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

digest, id, rowType, traitSet

Fields inherited from interface org.apache.calcite.adapter.cassandra.CassandraRel

CONVENTION

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CassandraTableScan(RelOptCluster cluster, RelTraitSet traitSet, RelOptTable table, CassandraTable cassandraTable, RelDataType projectRowType) Creates a CassandraTableScan.

Method Summary

Methods

Modifier and Type	Method and Description
RelNode	copy(RelTraitSet traitSet, List<RelNode> inputs)
RelDataType	deriveRowType()
void	implement(CassandraRel.Implementor implementor)
void	register(RelOptPlanner planner)

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

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

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

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

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

getCluster, getDescription, getDigest, getId, getTraitSet

Field Detail

cassandraTable

final CassandraTable cassandraTable

projectRowType

final RelDataType projectRowType

Constructor Detail

CassandraTableScan

protected CassandraTableScan(RelOptCluster cluster,
                  RelTraitSet traitSet,
                  RelOptTable table,
                  CassandraTable cassandraTable,
                  RelDataType projectRowType)

Creates a CassandraTableScan.

Parameters:

cluster - Cluster

traitSet - Traits

table - Table

cassandraTable - Cassandra table

projectRowType - Fields and types to project; null to project raw row

Method Detail

copy

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

Specified by:

copy in interface RelNode

Overrides:

copy in class AbstractRelNode

deriveRowType

public RelDataType deriveRowType()

Overrides:

deriveRowType in class TableScan

register

public void register(RelOptPlanner planner)

Specified by:

register in interface RelNode

Overrides:

register in class AbstractRelNode

implement

public void implement(CassandraRel.Implementor implementor)

Specified by:

implement in interface CassandraRel