org.apache.flink.streaming.api.functions.windowing

类 FoldApplyWindowFunction<K,W extends Window,T,ACC,R>

java.lang.Object

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

org.apache.flink.api.java.operators.translation.WrappingFunction<WindowFunction<ACC,R,K,W>>

org.apache.flink.streaming.api.functions.windowing.FoldApplyWindowFunction<K,W,T,ACC,R>

所有已实现的接口:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction, WindowFunction<T,R,K,W>, OutputTypeConfigurable<R>

已过时。

will be removed in a future version

@Internal
 @Deprecated
public class FoldApplyWindowFunction<K,W extends Window,T,ACC,R>
extends org.apache.flink.api.java.operators.translation.WrappingFunction<WindowFunction<ACC,R,K,W>>
implements WindowFunction<T,R,K,W>, OutputTypeConfigurable<R>

Internal WindowFunction that is used for implementing a fold on a window configuration that only allows WindowFunction and cannot directly execute a FoldFunction.

另请参阅:

序列化表格

字段概要

从类继承的字段 org.apache.flink.api.java.operators.translation.WrappingFunction

wrappedFunction

构造器概要

构造器

构造器和说明
FoldApplyWindowFunction(ACC initialValue, org.apache.flink.api.common.functions.FoldFunction<T,ACC> foldFunction, WindowFunction<ACC,R,K,W> windowFunction, org.apache.flink.api.common.typeinfo.TypeInformation<ACC> accTypeInformation) 已过时。

方法概要

限定符和类型	方法和说明
void	apply(K key, W window, Iterable<T> values, org.apache.flink.util.Collector<R> out) 已过时。 Evaluates the window and outputs none or several elements.
void	open(org.apache.flink.configuration.Configuration configuration) 已过时。
void	setOutputType(org.apache.flink.api.common.typeinfo.TypeInformation<R> outTypeInfo, org.apache.flink.api.common.ExecutionConfig executionConfig) 已过时。 Is called by the org.apache.flink.streaming.api.graph.StreamGraph#addOperator(Integer, String, StreamOperator, TypeInformation, TypeInformation, String) method when the StreamGraph is generated.

从类继承的方法 org.apache.flink.api.java.operators.translation.WrappingFunction

close, getWrappedFunction, setRuntimeContext

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

getIterationRuntimeContext, getRuntimeContext

从类继承的方法 java.lang.Object

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

构造器详细资料

FoldApplyWindowFunction

public FoldApplyWindowFunction(ACC initialValue,
                               org.apache.flink.api.common.functions.FoldFunction<T,ACC> foldFunction,
                               WindowFunction<ACC,R,K,W> windowFunction,
                               org.apache.flink.api.common.typeinfo.TypeInformation<ACC> accTypeInformation)

已过时。

方法详细资料

open

public void open(org.apache.flink.configuration.Configuration configuration)
          throws Exception

已过时。

指定者:

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

覆盖:

open 在类中 org.apache.flink.api.java.operators.translation.WrappingFunction<WindowFunction<ACC,R,K,W extends Window>>

抛出:

Exception

apply

public void apply(K key,
                  W window,
                  Iterable<T> values,
                  org.apache.flink.util.Collector<R> out)
           throws Exception

已过时。

从接口复制的说明: WindowFunction

Evaluates the window and outputs none or several elements.

指定者:

apply 在接口中 WindowFunction<T,R,K,W extends Window>

参数:

key - The key for which this window is evaluated.

window - The window that is being evaluated.

values - The elements in the window being evaluated.

out - A collector for emitting elements.

抛出:

Exception - The function may throw exceptions to fail the program and trigger recovery.

setOutputType

public void setOutputType(org.apache.flink.api.common.typeinfo.TypeInformation<R> outTypeInfo,
                          org.apache.flink.api.common.ExecutionConfig executionConfig)

已过时。

从接口复制的说明: OutputTypeConfigurable

Is called by the org.apache.flink.streaming.api.graph.StreamGraph#addOperator(Integer, String, StreamOperator, TypeInformation, TypeInformation, String) method when the StreamGraph is generated. The method is called with the output TypeInformation which is also used for the StreamTask output serializer.

指定者:

setOutputType 在接口中 OutputTypeConfigurable<R>

参数:

outTypeInfo - Output type information of the StreamTask

executionConfig - Execution configuration