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

类 ProcessAllWindowFunction<IN,OUT,W extends Window>

java.lang.Object

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

org.apache.flink.streaming.api.functions.windowing.ProcessAllWindowFunction<IN,OUT,W>

类型参数:

IN - The type of the input value.

OUT - The type of the output value.

W - The type of Window that this window function can be applied on.

所有已实现的接口:

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

直接已知子类:

FoldApplyProcessAllWindowFunction, ReduceApplyProcessAllWindowFunction, RichProcessAllWindowFunction

@PublicEvolving
public abstract class ProcessAllWindowFunction<IN,OUT,W extends Window>
extends org.apache.flink.api.common.functions.AbstractRichFunction

Base abstract class for functions that are evaluated over non-keyed windows using a context for retrieving extra information.

另请参阅:

序列化表格

嵌套类概要

嵌套类

限定符和类型	类和说明
class	ProcessAllWindowFunction.Context The context holding window metadata.

构造器概要

构造器

构造器和说明
ProcessAllWindowFunction()

方法概要

限定符和类型	方法和说明
void	clear(ProcessAllWindowFunction.Context context) Deletes any state in the Context when the Window is purged.
abstract void	process(ProcessAllWindowFunction.Context context, Iterable<IN> elements, org.apache.flink.util.Collector<OUT> out) Evaluates the window and outputs none or several elements.

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

构造器详细资料

ProcessAllWindowFunction

public ProcessAllWindowFunction()

方法详细资料

process

public abstract void process(ProcessAllWindowFunction.Context context,
                             Iterable<IN> elements,
                             org.apache.flink.util.Collector<OUT> out)
                      throws Exception

Evaluates the window and outputs none or several elements.

参数:

context - The context in which the window is being evaluated.

elements - 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.

clear

public void clear(ProcessAllWindowFunction.Context context)
           throws Exception

Deletes any state in the Context when the Window is purged.

参数:

context - The context to which the window is being evaluated

抛出:

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