org.apache.flink.table.planner.plan.nodes.exec.common

Class CommonExecLegacyTableSourceScan

java.lang.Object

org.apache.flink.table.planner.plan.nodes.exec.ExecNodeBase<org.apache.flink.table.data.RowData>

org.apache.flink.table.planner.plan.nodes.exec.common.CommonExecLegacyTableSourceScan

All Implemented Interfaces:

ExecNode<org.apache.flink.table.data.RowData>, ExecNodeTranslator<org.apache.flink.table.data.RowData>, MultipleTransformationTranslator<org.apache.flink.table.data.RowData>

Direct Known Subclasses:

BatchExecLegacyTableSourceScan, StreamExecLegacyTableSourceScan

public abstract class CommonExecLegacyTableSourceScan
extends ExecNodeBase<org.apache.flink.table.data.RowData>
implements MultipleTransformationTranslator<org.apache.flink.table.data.RowData>

Base ExecNode to read data from an external source defined by a StreamTableSource.

Field Summary

Fields

Modifier and Type	Field and Description
protected List<String>	qualifiedName
protected org.apache.flink.table.sources.TableSource<?>	tableSource

Fields inherited from interface org.apache.flink.table.planner.plan.nodes.exec.ExecNode

FIELD_NAME_CONFIGURATION, FIELD_NAME_DESCRIPTION, FIELD_NAME_ID, FIELD_NAME_INPUT_PROPERTIES, FIELD_NAME_OUTPUT_TYPE, FIELD_NAME_TYPE

Constructor Summary

Constructors

Constructor and Description
CommonExecLegacyTableSourceScan(int id, ExecNodeContext context, org.apache.flink.configuration.ReadableConfig persistedConfig, org.apache.flink.table.sources.TableSource<?> tableSource, List<String> qualifiedName, org.apache.flink.table.types.logical.RowType outputType, String description)

Method Summary

Modifier and Type	Method and Description
protected int[]	computeIndexMapping(boolean isStreaming)
protected abstract org.apache.flink.api.dag.Transformation<org.apache.flink.table.data.RowData>	createConversionTransformationIfNeeded(org.apache.flink.streaming.api.environment.StreamExecutionEnvironment streamExecEnv, ExecNodeConfig config, org.apache.flink.api.dag.Transformation<?> sourceTransform, org.apache.calcite.rex.RexNode rowtimeExpression)
protected abstract <IN> org.apache.flink.api.dag.Transformation<IN>	createInput(org.apache.flink.streaming.api.environment.StreamExecutionEnvironment env, org.apache.flink.api.common.io.InputFormat<IN,? extends org.apache.flink.core.io.InputSplit> inputFormat, org.apache.flink.api.common.typeinfo.TypeInformation<IN> typeInfo)
protected boolean	needInternalConversion(int[] fieldIndexes)
protected org.apache.flink.api.dag.Transformation<org.apache.flink.table.data.RowData>	translateToPlanInternal(org.apache.flink.table.planner.delegation.PlannerBase planner, ExecNodeConfig config) Internal method, translates this node into a Flink operator.

Methods inherited from class org.apache.flink.table.planner.plan.nodes.exec.ExecNodeBase

accept, createFormattedTransformationDescription, createFormattedTransformationName, createTransformationDescription, createTransformationMeta, createTransformationMeta, createTransformationName, createTransformationUid, getContextFromAnnotation, getDescription, getId, getInputEdges, getInputProperties, getOutputType, getPersistedConfig, getSimplifiedName, inputsContainSingleton, replaceInputEdge, setCompiled, setInputEdges, translateToPlan

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.table.planner.plan.nodes.exec.ExecNodeTranslator

translateToPlan

Field Detail

tableSource

protected final org.apache.flink.table.sources.TableSource<?> tableSource

qualifiedName

protected final List<String> qualifiedName

Constructor Detail

CommonExecLegacyTableSourceScan

public CommonExecLegacyTableSourceScan(int id,
                                       ExecNodeContext context,
                                       org.apache.flink.configuration.ReadableConfig persistedConfig,
                                       org.apache.flink.table.sources.TableSource<?> tableSource,
                                       List<String> qualifiedName,
                                       org.apache.flink.table.types.logical.RowType outputType,
                                       String description)

Method Detail

translateToPlanInternal

protected org.apache.flink.api.dag.Transformation<org.apache.flink.table.data.RowData> translateToPlanInternal(org.apache.flink.table.planner.delegation.PlannerBase planner,
                                                                                                               ExecNodeConfig config)

Description copied from class: ExecNodeBase

Internal method, translates this node into a Flink operator.

Specified by:

translateToPlanInternal in class ExecNodeBase<org.apache.flink.table.data.RowData>

Parameters:

planner - The planner.

config - per-ExecNode configuration that contains the merged configuration from various layers which all the nodes implementing this method should use, instead of retrieving configuration from the planner. For more details check ExecNodeConfig.

createInput

protected abstract <IN> org.apache.flink.api.dag.Transformation<IN> createInput(org.apache.flink.streaming.api.environment.StreamExecutionEnvironment env,
                                                                                org.apache.flink.api.common.io.InputFormat<IN,? extends org.apache.flink.core.io.InputSplit> inputFormat,
                                                                                org.apache.flink.api.common.typeinfo.TypeInformation<IN> typeInfo)

createConversionTransformationIfNeeded

protected abstract org.apache.flink.api.dag.Transformation<org.apache.flink.table.data.RowData> createConversionTransformationIfNeeded(org.apache.flink.streaming.api.environment.StreamExecutionEnvironment streamExecEnv,
                                                                                                                                       ExecNodeConfig config,
                                                                                                                                       org.apache.flink.api.dag.Transformation<?> sourceTransform,
                                                                                                                                       @Nullable
                                                                                                                                       org.apache.calcite.rex.RexNode rowtimeExpression)

needInternalConversion

protected boolean needInternalConversion(int[] fieldIndexes)

computeIndexMapping

protected int[] computeIndexMapping(boolean isStreaming)