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

Class CommonExecTableSourceScan

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.CommonExecTableSourceScan

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:

BatchExecTableSourceScan, StreamExecTableSourceScan

public abstract class CommonExecTableSourceScan
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 ScanTableSource.

Field Summary

Fields

Modifier and Type	Field and Description
static String	FIELD_NAME_SCAN_TABLE_SOURCE
static String	SOURCE_TRANSFORMATION

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

Modifier	Constructor and Description
protected	CommonExecTableSourceScan(int id, ExecNodeContext context, org.apache.flink.configuration.ReadableConfig persistedConfig, DynamicTableSourceSpec tableSourceSpec, org.apache.flink.table.types.logical.LogicalType outputType, String description)

Method Summary

Modifier and Type	Method and Description
protected abstract org.apache.flink.api.dag.Transformation<org.apache.flink.table.data.RowData>	createInputFormatTransformation(org.apache.flink.streaming.api.environment.StreamExecutionEnvironment env, org.apache.flink.api.common.io.InputFormat<org.apache.flink.table.data.RowData,?> inputFormat, org.apache.flink.table.runtime.typeutils.InternalTypeInfo<org.apache.flink.table.data.RowData> outputTypeInfo, String operatorName) Creates a Transformation based on the given InputFormat.
protected org.apache.flink.api.dag.Transformation<org.apache.flink.table.data.RowData>	createSourceFunctionTransformation(org.apache.flink.streaming.api.environment.StreamExecutionEnvironment env, org.apache.flink.streaming.api.functions.source.SourceFunction<org.apache.flink.table.data.RowData> function, boolean isBounded, String operatorName, org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> outputTypeInfo) Adopted from StreamExecutionEnvironment.addSource(SourceFunction, String, TypeInformation) but with custom Boundedness.
String	getSimplifiedName()
DynamicTableSourceSpec	getTableSourceSpec()
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, 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

SOURCE_TRANSFORMATION

public static final String SOURCE_TRANSFORMATION

See Also:

Constant Field Values

FIELD_NAME_SCAN_TABLE_SOURCE

public static final String FIELD_NAME_SCAN_TABLE_SOURCE

See Also:

Constant Field Values

Constructor Detail

CommonExecTableSourceScan

protected CommonExecTableSourceScan(int id,
                                    ExecNodeContext context,
                                    org.apache.flink.configuration.ReadableConfig persistedConfig,
                                    DynamicTableSourceSpec tableSourceSpec,
                                    org.apache.flink.table.types.logical.LogicalType outputType,
                                    String description)

Method Detail

getSimplifiedName

public String getSimplifiedName()

Overrides:

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

getTableSourceSpec

public DynamicTableSourceSpec getTableSourceSpec()

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.

createSourceFunctionTransformation

protected org.apache.flink.api.dag.Transformation<org.apache.flink.table.data.RowData> createSourceFunctionTransformation(org.apache.flink.streaming.api.environment.StreamExecutionEnvironment env,
                                                                                                                          org.apache.flink.streaming.api.functions.source.SourceFunction<org.apache.flink.table.data.RowData> function,
                                                                                                                          boolean isBounded,
                                                                                                                          String operatorName,
                                                                                                                          org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> outputTypeInfo)

Adopted from StreamExecutionEnvironment.addSource(SourceFunction, String, TypeInformation) but with custom Boundedness.

createInputFormatTransformation

protected abstract org.apache.flink.api.dag.Transformation<org.apache.flink.table.data.RowData> createInputFormatTransformation(org.apache.flink.streaming.api.environment.StreamExecutionEnvironment env,
                                                                                                                                org.apache.flink.api.common.io.InputFormat<org.apache.flink.table.data.RowData,?> inputFormat,
                                                                                                                                org.apache.flink.table.runtime.typeutils.InternalTypeInfo<org.apache.flink.table.data.RowData> outputTypeInfo,
                                                                                                                                String operatorName)

Creates a Transformation based on the given InputFormat. The implementation is different for streaming mode and batch mode.