org.apache.flink.table.runtime.functions

类 KeyedProcessFunctionWithCleanupState<K,IN,OUT>

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.streaming.api.functions.KeyedProcessFunction<K,IN,OUT>

org.apache.flink.table.runtime.functions.KeyedProcessFunctionWithCleanupState<K,IN,OUT>

类型参数:

K - Type of the key.

IN - Type of the input elements.

OUT - Type of the output elements.

所有已实现的接口:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction, CleanupState

直接已知子类:

AbstractRowTimeUnboundedPrecedingOver, AbstractTopNFunction, GroupAggFunction, GroupTableAggFunction, ProcTimeRowsBoundedPrecedingFunction, ProcTimeUnboundedPrecedingFunction, RowTimeRowsBoundedPrecedingFunction

public abstract class KeyedProcessFunctionWithCleanupState<K,IN,OUT>
extends org.apache.flink.streaming.api.functions.KeyedProcessFunction<K,IN,OUT>
implements CleanupState

A function that processes elements of a stream, and could cleanup state.

另请参阅:

序列化表格

嵌套类概要

从类继承的嵌套类/接口 org.apache.flink.streaming.api.functions.KeyedProcessFunction

org.apache.flink.streaming.api.functions.KeyedProcessFunction.Context, org.apache.flink.streaming.api.functions.KeyedProcessFunction.OnTimerContext

字段概要

字段

限定符和类型	字段和说明
protected boolean	stateCleaningEnabled

构造器概要

构造器

构造器和说明
KeyedProcessFunctionWithCleanupState(long minRetentionTime, long maxRetentionTime)

方法概要

限定符和类型	方法和说明
protected void	cleanupState(org.apache.flink.api.common.state.State... states)
protected void	initCleanupTimeState(String stateName)
protected boolean	isProcessingTimeTimer(org.apache.flink.streaming.api.functions.KeyedProcessFunction.OnTimerContext ctx)
protected Boolean	needToCleanupState(Long timestamp)
protected void	registerProcessingCleanupTimer(org.apache.flink.streaming.api.functions.KeyedProcessFunction.Context ctx, long currentTime)

从类继承的方法 org.apache.flink.streaming.api.functions.KeyedProcessFunction

onTimer, processElement

从类继承的方法 org.apache.flink.api.common.functions.AbstractRichFunction

close, getIterationRuntimeContext, getRuntimeContext, open, setRuntimeContext

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 org.apache.flink.table.runtime.functions.CleanupState

registerProcessingCleanupTimer

字段详细资料

stateCleaningEnabled

protected final boolean stateCleaningEnabled

构造器详细资料

KeyedProcessFunctionWithCleanupState

public KeyedProcessFunctionWithCleanupState(long minRetentionTime,
                                            long maxRetentionTime)

方法详细资料

initCleanupTimeState

protected void initCleanupTimeState(String stateName)

registerProcessingCleanupTimer

protected void registerProcessingCleanupTimer(org.apache.flink.streaming.api.functions.KeyedProcessFunction.Context ctx,
                                              long currentTime)
                                       throws Exception

抛出:

Exception

isProcessingTimeTimer

protected boolean isProcessingTimeTimer(org.apache.flink.streaming.api.functions.KeyedProcessFunction.OnTimerContext ctx)

cleanupState

protected void cleanupState(org.apache.flink.api.common.state.State... states)

needToCleanupState

protected Boolean needToCleanupState(Long timestamp)
                              throws IOException

抛出:

IOException