org.apache.calcite.adapter.spark

类 JdbcToSparkConverter

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.convert.ConverterImpl

org.apache.calcite.adapter.spark.JdbcToSparkConverter

所有已实现的接口:

Cloneable, SparkRel, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.convert.Converter, org.apache.calcite.rel.RelNode

public class JdbcToSparkConverter
extends org.apache.calcite.rel.convert.ConverterImpl
implements SparkRel

Relational expression representing a scan of a table in a JDBC data source that returns its results as a Spark RDD.

嵌套类概要

从接口继承的嵌套类/接口 org.apache.calcite.adapter.spark.SparkRel

SparkRel.Implementor, SparkRel.Result

从接口继承的嵌套类/接口 org.apache.calcite.rel.RelNode

org.apache.calcite.rel.RelNode.Context

字段概要

从类继承的字段 org.apache.calcite.rel.convert.ConverterImpl

inTraits, traitDef

从类继承的字段 org.apache.calcite.rel.SingleRel

input

从类继承的字段 org.apache.calcite.rel.AbstractRelNode

digest, id, rowType, traitSet

从接口继承的字段 org.apache.calcite.adapter.spark.SparkRel

CONVENTION

构造器概要

构造器

限定符	构造器和说明
protected	JdbcToSparkConverter(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, org.apache.calcite.rel.RelNode input)

方法概要

限定符和类型	方法和说明
@Nullable org.apache.calcite.plan.RelOptCost	computeSelfCost(org.apache.calcite.plan.RelOptPlanner planner, org.apache.calcite.rel.metadata.RelMetadataQuery mq)
org.apache.calcite.rel.RelNode	copy(org.apache.calcite.plan.RelTraitSet traitSet, List<org.apache.calcite.rel.RelNode> inputs)
SparkRel.Result	implementSpark(SparkRel.Implementor implementor)

从类继承的方法 org.apache.calcite.rel.convert.ConverterImpl

cannotImplement, getInputTraits, getTraitDef

从类继承的方法 org.apache.calcite.rel.SingleRel

childrenAccept, deriveRowType, estimateRowCount, explainTerms, getInput, getInputs, replaceInput

从类继承的方法 org.apache.calcite.rel.AbstractRelNode

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

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.calcite.rel.RelNode

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

从接口继承的方法 org.apache.calcite.plan.RelOptNode

getCluster, getDescription, getId, getTraitSet

从接口继承的方法 org.apache.calcite.rel.convert.Converter

getInput

构造器详细资料

JdbcToSparkConverter

protected JdbcToSparkConverter(org.apache.calcite.plan.RelOptCluster cluster,
                               org.apache.calcite.plan.RelTraitSet traits,
                               org.apache.calcite.rel.RelNode input)

方法详细资料

copy

public org.apache.calcite.rel.RelNode copy(org.apache.calcite.plan.RelTraitSet traitSet,
                                           List<org.apache.calcite.rel.RelNode> inputs)

指定者:

copy 在接口中 org.apache.calcite.rel.RelNode

覆盖:

copy 在类中 org.apache.calcite.rel.AbstractRelNode

computeSelfCost

public @Nullable org.apache.calcite.plan.RelOptCost computeSelfCost(org.apache.calcite.plan.RelOptPlanner planner,
                                                                    org.apache.calcite.rel.metadata.RelMetadataQuery mq)

指定者:

computeSelfCost 在接口中 org.apache.calcite.rel.RelNode

覆盖:

computeSelfCost 在类中 org.apache.calcite.rel.convert.ConverterImpl

implementSpark

public SparkRel.Result implementSpark(SparkRel.Implementor implementor)

指定者:

implementSpark 在接口中 SparkRel