IN
- Input type@Internal public class QueryableAppendingStateOperator<IN> extends AbstractStreamOperator<IN>
AbstractStreamOperator.CountingOutput<OUT>
限定符和类型 | 字段和说明 |
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protected String |
registrationName
Name under which the queryable state is registered.
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protected S |
state
The state instance created on open.
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protected org.apache.flink.api.common.state.StateDescriptor<? extends S,?> |
stateDescriptor
State descriptor for the queryable state instance.
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chainingStrategy, config, latencyStats, LOG, metrics, output, timeServiceManager
构造器和说明 |
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QueryableAppendingStateOperator(String registrationName,
org.apache.flink.api.common.state.StateDescriptor<? extends org.apache.flink.api.common.state.AppendingState<IN,?>,?> stateDescriptor) |
限定符和类型 | 方法和说明 |
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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<IN> element)
Processes one element that arrived at this operator.
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close, dispose, getChainingStrategy, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getUserCodeClassloader, initializeState, initializeState, notifyCheckpointComplete, numEventTimeTimers, numProcessingTimeTimers, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processWatermark, processWatermark1, processWatermark2, reportOrForwardLatencyMarker, setChainingStrategy, setCurrentKey, setKeyContextElement1, setKeyContextElement2, setup, snapshotState, snapshotState
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
processLatencyMarker, processWatermark
close, dispose, getChainingStrategy, getMetricGroup, getOperatorID, initializeState, prepareSnapshotPreBarrier, setChainingStrategy, setKeyContextElement1, setKeyContextElement2, setup, snapshotState
getCurrentKey, setCurrentKey
protected final org.apache.flink.api.common.state.StateDescriptor<? extends S extends org.apache.flink.api.common.state.State,?> stateDescriptor
protected final String registrationName
protected transient S extends org.apache.flink.api.common.state.State state
public void processElement(StreamRecord<IN> element) throws Exception
OneInputStreamOperator
Exception
public void open() throws Exception
AbstractStreamOperator
The default implementation does nothing.
open
在接口中 StreamOperator<IN>
open
在类中 AbstractStreamOperator<IN>
Exception
- An exception in this method causes the operator to fail.Copyright © 2014–2019 The Apache Software Foundation. All rights reserved.