org.apache.flink.table.runtime.operators.dynamicfiltering

Class ExecutionOrderEnforcerOperator<IN>

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperatorV2<IN>

org.apache.flink.table.runtime.operators.dynamicfiltering.ExecutionOrderEnforcerOperator<IN>

All Implemented Interfaces:

Serializable, CheckpointListener, KeyContext, MultipleInputStreamOperator<IN>, StreamOperator<IN>, StreamOperatorStateHandler.CheckpointedStreamOperator

public class ExecutionOrderEnforcerOperator<IN>
extends AbstractStreamOperatorV2<IN>
implements MultipleInputStreamOperator<IN>

ExecutionOrderEnforcerOperator has two inputs, one of which is a source, and the other is the dependent upstream. It enforces that the input source is executed after the dependent input is finished. Everything passed from the inputs is forwarded to the output, though typically the dependent input should not send anything.

The operator must be chained with the source, which is generally ensured by the ExecutionOrderEnforcerOperatorFactory. If chaining is explicitly disabled, the enforcer can not work as expected.

The operator is used only for dynamic filtering at present.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperatorV2

config, latencyStats, LOG, metrics, output, processingTimeService

Constructor Summary

Constructors

Constructor and Description
ExecutionOrderEnforcerOperator(StreamOperatorParameters<IN> parameters)

Method Summary

Modifier and Type	Method and Description
List<Input>	getInputs()

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperatorV2

close, finish, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getTimeServiceManager, getUserCodeClassloader, initializeState, initializeState, internalSetKeyContextElement, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, open, prepareSnapshotPreBarrier, processWatermark, processWatermarkStatus, reportOrForwardLatencyMarker, reportWatermark, setCurrentKey, setKeyContextElement1, setKeyContextElement2, 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.streaming.api.operators.StreamOperator

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

Methods inherited from interface org.apache.flink.api.common.state.CheckpointListener

notifyCheckpointAborted, notifyCheckpointComplete

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

getCurrentKey, setCurrentKey

Constructor Detail

ExecutionOrderEnforcerOperator

public ExecutionOrderEnforcerOperator(StreamOperatorParameters<IN> parameters)

Method Detail

getInputs

public List<Input> getInputs()

Specified by:

getInputs in interface MultipleInputStreamOperator<IN>