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

Class StreamExecWatermarkAssigner

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.stream.StreamExecWatermarkAssigner

All Implemented Interfaces:

ExecNode<org.apache.flink.table.data.RowData>, ExecNodeTranslator<org.apache.flink.table.data.RowData>, FusionCodegenExecNode, SingleTransformationTranslator<org.apache.flink.table.data.RowData>, StreamExecNode<org.apache.flink.table.data.RowData>

@ExecNodeMetadata(name="stream-exec-watermark-assigner",
                  version=1,
                  producedTransformations="watermark-assigner",
                  minPlanVersion=v1_15,
                  minStateVersion=v1_15)
public class StreamExecWatermarkAssigner
extends ExecNodeBase<org.apache.flink.table.data.RowData>
implements StreamExecNode<org.apache.flink.table.data.RowData>, SingleTransformationTranslator<org.apache.flink.table.data.RowData>

Stream ExecNode which generates watermark based on the input elements.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	FIELD_NAME_ROWTIME_FIELD_INDEX
static final String	FIELD_NAME_WATERMARK_EXPR
static final String	WATERMARK_ASSIGNER_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_STATE, FIELD_NAME_TYPE

Constructor Summary

Constructors

Constructor	Description
StreamExecWatermarkAssigner(int id, ExecNodeContext context, org.apache.flink.configuration.ReadableConfig persistedConfig, org.apache.calcite.rex.RexNode watermarkExpr, int rowtimeFieldIndex, List<InputProperty> inputProperties, org.apache.flink.table.types.logical.RowType outputType, String description)
StreamExecWatermarkAssigner(org.apache.flink.configuration.ReadableConfig tableConfig, org.apache.calcite.rex.RexNode watermarkExpr, int rowtimeFieldIndex, InputProperty inputProperty, org.apache.flink.table.types.logical.RowType outputType, String description)

Method Summary

Modifier and Type	Method	Description
protected org.apache.flink.api.dag.Transformation<org.apache.flink.table.data.RowData>	translateToPlanInternal(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, setCompiled, setInputEdges, supportFusionCodegen, translateToFusionCodegenSpec, translateToFusionCodegenSpecInternal, 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

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

supportFusionCodegen, translateToFusionCodegenSpec

Field Details

WATERMARK_ASSIGNER_TRANSFORMATION

public static final String WATERMARK_ASSIGNER_TRANSFORMATION

See Also:

• Constant Field Values

FIELD_NAME_WATERMARK_EXPR

public static final String FIELD_NAME_WATERMARK_EXPR

See Also:

• Constant Field Values

FIELD_NAME_ROWTIME_FIELD_INDEX

public static final String FIELD_NAME_ROWTIME_FIELD_INDEX

See Also:

• Constant Field Values

Constructor Details

StreamExecWatermarkAssigner

public StreamExecWatermarkAssigner(org.apache.flink.configuration.ReadableConfig tableConfig,
 org.apache.calcite.rex.RexNode watermarkExpr,
 int rowtimeFieldIndex,
 InputProperty inputProperty,
 org.apache.flink.table.types.logical.RowType outputType,
 String description)

StreamExecWatermarkAssigner

public StreamExecWatermarkAssigner(int id,
 ExecNodeContext context,
 org.apache.flink.configuration.ReadableConfig persistedConfig,
 org.apache.calcite.rex.RexNode watermarkExpr,
 int rowtimeFieldIndex,
 List<InputProperty> inputProperties,
 org.apache.flink.table.types.logical.RowType outputType,
 String description)

Method Details

translateToPlanInternal

protected org.apache.flink.api.dag.Transformation<org.apache.flink.table.data.RowData> translateToPlanInternal(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.