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

Class StreamExecLimit

java.lang.Object

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

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

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

All Implemented Interfaces:

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

@ExecNodeMetadata(name="stream-exec-limit",
                  version=1,
                  consumedOptions="table.exec.rank.topn-cache-size",
                  producedTransformations="rank",
                  minPlanVersion=v1_15,
                  minStateVersion=v1_15)
public class StreamExecLimit
extends StreamExecRank

Stream ExecNode for Limit.

Field Summary

Fields inherited from class org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecRank

FIELD_NAME_GENERATE_UPDATE_BEFORE, FIELD_NAME_OUTPUT_RANK_NUMBER, FIELD_NAME_PARTITION_SPEC, FIELD_NAME_RANK_RANG, FIELD_NAME_RANK_STRATEGY, FIELD_NAME_RANK_TYPE, FIELD_NAME_SORT_SPEC, RANK_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

Constructor and Description
StreamExecLimit(int id, ExecNodeContext context, ReadableConfig persistedConfig, ConstantRankRange rankRange, RankProcessStrategy rankStrategy, boolean generateUpdateBefore, List<InputProperty> inputProperties, RowType outputType, String description)
StreamExecLimit(ReadableConfig tableConfig, long limitStart, long limitEnd, boolean generateUpdateBefore, boolean needRetraction, 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

Constructor Detail

StreamExecLimit

public StreamExecLimit(ReadableConfig tableConfig,
                       long limitStart,
                       long limitEnd,
                       boolean generateUpdateBefore,
                       boolean needRetraction,
                       InputProperty inputProperty,
                       RowType outputType,
                       String description)

StreamExecLimit

public StreamExecLimit(int id,
                       ExecNodeContext context,
                       ReadableConfig persistedConfig,
                       ConstantRankRange rankRange,
                       RankProcessStrategy rankStrategy,
                       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.

Overrides:

translateToPlanInternal in class StreamExecRank

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.