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

Class StreamExecChangelogNormalize

java.lang.Object

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

org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecChangelogNormalize

All Implemented Interfaces:

ExecNode<RowData>, ExecNodeTranslator<RowData>, SingleTransformationTranslator<RowData>, StreamExecNode<RowData>

@ExecNodeMetadata(name="stream-exec-changelog-normalize",
                  version=1,
                  consumedOptions={"table.exec.mini-batch.enabled","table.exec.mini-batch.size"},
                  producedTransformations="changelog-normalize",
                  minPlanVersion=v1_15,
                  minStateVersion=v1_15)
public class StreamExecChangelogNormalize
extends ExecNodeBase<RowData>
implements StreamExecNode<RowData>, SingleTransformationTranslator<RowData>

Stream ExecNode which normalizes a changelog stream which maybe an upsert stream or a changelog stream containing duplicate events. This node normalize such stream into a regular changelog stream that contains INSERT/UPDATE_BEFORE/UPDATE_AFTER/DELETE records without duplication.

Field Summary

Fields

Modifier and Type	Field and Description
static String	CHANGELOG_NORMALIZE_TRANSFORMATION
static String	FIELD_NAME_GENERATE_UPDATE_BEFORE
static String	FIELD_NAME_UNIQUE_KEYS

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
StreamExecChangelogNormalize(Integer id, ExecNodeContext context, ReadableConfig persistedConfig, int[] uniqueKeys, boolean generateUpdateBefore, List<InputProperty> inputProperties, RowType outputType, String description)
StreamExecChangelogNormalize(ReadableConfig tableConfig, int[] uniqueKeys, boolean generateUpdateBefore, InputProperty inputProperty, RowType outputType, String description)

Method Summary

Modifier and Type	Method and Description
protected Transformation<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, getTransformation, inputsContainSingleton, replaceInputEdge, resetTransformation, 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.ExecNode

accept, getDescription, getId, getInputEdges, getInputProperties, getOutputType, replaceInputEdge, setCompiled, setInputEdges

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

translateToPlan

Field Detail

CHANGELOG_NORMALIZE_TRANSFORMATION

public static final String CHANGELOG_NORMALIZE_TRANSFORMATION

See Also:

Constant Field Values

FIELD_NAME_UNIQUE_KEYS

public static final String FIELD_NAME_UNIQUE_KEYS

See Also:

Constant Field Values

FIELD_NAME_GENERATE_UPDATE_BEFORE

public static final String FIELD_NAME_GENERATE_UPDATE_BEFORE

See Also:

Constant Field Values

Constructor Detail

StreamExecChangelogNormalize

public StreamExecChangelogNormalize(ReadableConfig tableConfig,
                                    int[] uniqueKeys,
                                    boolean generateUpdateBefore,
                                    InputProperty inputProperty,
                                    RowType outputType,
                                    String description)

StreamExecChangelogNormalize

public StreamExecChangelogNormalize(Integer id,
                                    ExecNodeContext context,
                                    ReadableConfig persistedConfig,
                                    int[] uniqueKeys,
                                    boolean generateUpdateBefore,
                                    List<InputProperty> inputProperties,
                                    RowType outputType,
                                    String description)

Method Detail

translateToPlanInternal

protected Transformation<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<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.