org.apache.flink.table.runtime.operators.over

类 AbstractRowTimeUnboundedPrecedingOver<K>

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,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

org.apache.flink.table.runtime.operators.over.AbstractRowTimeUnboundedPrecedingOver<K>

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:

RowTimeRangeUnboundedPrecedingFunction, RowTimeRowsUnboundedPrecedingFunction

public abstract class AbstractRowTimeUnboundedPrecedingOver<K>
extends KeyedProcessFunctionWithCleanupState<K,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

A basic implementation to support unbounded event-time over-window.

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 AggsHandleFunction	function
protected org.apache.flink.table.data.utils.JoinedRowData	output

从类继承的字段 org.apache.flink.table.runtime.functions.KeyedProcessFunctionWithCleanupState

stateCleaningEnabled

构造器概要

构造器

构造器和说明
AbstractRowTimeUnboundedPrecedingOver(long minRetentionTime, long maxRetentionTime, GeneratedAggsHandleFunction genAggsHandler, org.apache.flink.table.types.logical.LogicalType[] accTypes, org.apache.flink.table.types.logical.LogicalType[] inputFieldTypes, int rowTimeIdx)

方法概要

限定符和类型	方法和说明
void	close()
protected org.apache.flink.metrics.Counter	getCounter()
void	onTimer(long timestamp, org.apache.flink.streaming.api.functions.KeyedProcessFunction.OnTimerContext ctx, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
void	open(org.apache.flink.api.common.functions.OpenContext openContext)
void	processElement(org.apache.flink.table.data.RowData input, org.apache.flink.streaming.api.functions.KeyedProcessFunction.Context ctx, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out) Puts an element from the input stream into state if it is not late.
protected abstract void	processElementsWithSameTimestamp(List<org.apache.flink.table.data.RowData> curRowList, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out) Process the same timestamp datas, the mechanism is different between rows and range window.

从类继承的方法 org.apache.flink.table.runtime.functions.KeyedProcessFunctionWithCleanupState

cleanupState, initCleanupTimeState, isProcessingTimeTimer, needToCleanupState, registerProcessingCleanupTimer

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

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

output

protected transient org.apache.flink.table.data.utils.JoinedRowData output

function

protected transient AggsHandleFunction function

构造器详细资料

AbstractRowTimeUnboundedPrecedingOver

public AbstractRowTimeUnboundedPrecedingOver(long minRetentionTime,
                                             long maxRetentionTime,
                                             GeneratedAggsHandleFunction genAggsHandler,
                                             org.apache.flink.table.types.logical.LogicalType[] accTypes,
                                             org.apache.flink.table.types.logical.LogicalType[] inputFieldTypes,
                                             int rowTimeIdx)

方法详细资料

getCounter

@VisibleForTesting
protected org.apache.flink.metrics.Counter getCounter()

open

public void open(org.apache.flink.api.common.functions.OpenContext openContext)
          throws Exception

抛出:

Exception

processElement

public void processElement(org.apache.flink.table.data.RowData input,
                           org.apache.flink.streaming.api.functions.KeyedProcessFunction.Context ctx,
                           org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
                    throws Exception

Puts an element from the input stream into state if it is not late. Registers a timer for the next watermark.

指定者:

processElement 在类中 org.apache.flink.streaming.api.functions.KeyedProcessFunction<K,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

参数:

input - The input value.

ctx - A Context that allows querying the timestamp of the element and getting TimerService for registering timers and querying the time. The context is only valid during the invocation of this method, do not store it.

out - The collector for returning result values.

抛出:

Exception

onTimer

public void onTimer(long timestamp,
                    org.apache.flink.streaming.api.functions.KeyedProcessFunction.OnTimerContext ctx,
                    org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
             throws Exception

覆盖:

onTimer 在类中 org.apache.flink.streaming.api.functions.KeyedProcessFunction<K,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

抛出:

Exception

processElementsWithSameTimestamp

protected abstract void processElementsWithSameTimestamp(List<org.apache.flink.table.data.RowData> curRowList,
                                                         org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
                                                  throws Exception

Process the same timestamp datas, the mechanism is different between rows and range window.

抛出:

Exception

close

public void close()
           throws Exception

指定者:

close 在接口中 org.apache.flink.api.common.functions.RichFunction

覆盖:

close 在类中 org.apache.flink.api.common.functions.AbstractRichFunction

抛出:

Exception