Package org.apache.flink.table.runtime.operators.sink

Class SinkUpsertMaterializer

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperator<OUT>

org.apache.flink.table.runtime.operators.TableStreamOperator<RowData>

org.apache.flink.table.runtime.operators.sink.SinkUpsertMaterializer

All Implemented Interfaces:

Serializable, CheckpointListener, Input<RowData>, KeyContext, KeyContextHandler, OneInputStreamOperator<RowData,RowData>, StreamOperator<RowData>, StreamOperatorStateHandler.CheckpointedStreamOperator, YieldingOperator<RowData>

public class SinkUpsertMaterializer
extends TableStreamOperator<RowData>
implements OneInputStreamOperator<RowData,RowData>

An operator that maintains incoming records in state corresponding to the upsert keys and generates an upsert view for the downstream operator.

• Adds an insertion to state and emits it with updated RowKind.
• Applies a deletion to state.
• Emits a deletion with updated RowKind iff affects the last record or the state is empty afterwards. A deletion to an already updated record is swallowed.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.table.runtime.operators.TableStreamOperator

TableStreamOperator.ContextImpl

Field Summary

Fields inherited from class org.apache.flink.table.runtime.operators.TableStreamOperator

ctx, currentWatermark

Fields inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

config, lastRecordAttributes1, lastRecordAttributes2, latencyStats, metrics, output, processingTimeService, stateHandler, stateKeySelector1, stateKeySelector2, timeServiceManager

Constructor Summary

Constructors

Constructor	Description
SinkUpsertMaterializer(StateTtlConfig ttlConfig, TypeSerializer<RowData> serializer, GeneratedRecordEqualiser generatedRecordEqualiser, GeneratedRecordEqualiser generatedUpsertKeyEqualiser, int[] inputUpsertKey)

Method Summary

Modifier and Type	Method	Description
void	open()	This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.
void	processElement(StreamRecord<RowData> element)	Processes one element that arrived on this input of the MultipleInputStreamOperator.

Methods inherited from class org.apache.flink.table.runtime.operators.TableStreamOperator

computeMemorySize, processWatermark, useSplittableTimers

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

close, finish, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getStateKeySelector1, getStateKeySelector2, getTimeServiceManager, getUserCodeClassloader, hasKeyContext1, hasKeyContext2, initializeState, initializeState, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processRecordAttributes, processRecordAttributes1, processRecordAttributes2, processWatermark1, processWatermark2, processWatermarkStatus, processWatermarkStatus1, processWatermarkStatus2, reportOrForwardLatencyMarker, setCurrentKey, setKeyContextElement1, setKeyContextElement2, setMailboxExecutor, setProcessingTimeService, setup, snapshotState, snapshotState

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.api.common.state.CheckpointListener

notifyCheckpointAborted, notifyCheckpointComplete

Methods inherited from interface org.apache.flink.streaming.api.operators.Input

processLatencyMarker, processRecordAttributes, processWatermark, processWatermarkStatus

Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContext

getCurrentKey, setCurrentKey

Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContextHandler

hasKeyContext

Methods inherited from interface org.apache.flink.streaming.api.operators.OneInputStreamOperator

setKeyContextElement

Methods inherited from interface org.apache.flink.streaming.api.operators.StreamOperator

close, finish, getMetricGroup, getOperatorAttributes, getOperatorID, initializeState, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState

Constructor Detail

SinkUpsertMaterializer

public SinkUpsertMaterializer(StateTtlConfig ttlConfig,
                              TypeSerializer<RowData> serializer,
                              GeneratedRecordEqualiser generatedRecordEqualiser,
                              @Nullable
                              GeneratedRecordEqualiser generatedUpsertKeyEqualiser,
                              @Nullable
                              int[] inputUpsertKey)

Method Detail

open

public void open()
          throws Exception

Description copied from class: AbstractStreamOperator

This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.

The default implementation does nothing.

Specified by:

open in interface StreamOperator<RowData>

Overrides:

open in class TableStreamOperator<RowData>

Throws:

Exception - An exception in this method causes the operator to fail.

processElement

public void processElement(StreamRecord<RowData> element)
                    throws Exception

Description copied from interface: Input

Processes one element that arrived on this input of the MultipleInputStreamOperator. This method is guaranteed to not be called concurrently with other methods of the operator.

Specified by:

processElement in interface Input<RowData>

Throws:

Exception