org.apache.flink.streaming.runtime.operators.windowing.functions

类 InternalProcessWindowContext<IN,OUT,KEY,W extends Window>

java.lang.Object

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

org.apache.flink.streaming.runtime.operators.windowing.functions.InternalProcessWindowContext<IN,OUT,KEY,W>

类型参数:

IN - The type of the input value.

OUT - The type of the output value.

KEY - The type of the key.

W - The type of the window.

所有已实现的接口:

Serializable

@Internal
public class InternalProcessWindowContext<IN,OUT,KEY,W extends Window>
extends ProcessWindowFunction.Context

Internal reusable context wrapper.

另请参阅:

序列化表格

方法概要

限定符和类型	方法和说明
long	currentProcessingTime() Returns the current processing time.
long	currentWatermark() Returns the current event-time watermark.
org.apache.flink.api.common.state.KeyedStateStore	globalState() State accessor for per-key global state.
<X> void	output(org.apache.flink.util.OutputTag<X> outputTag, X value) Emits a record to the side output identified by the OutputTag.
W	window() Returns the window that is being evaluated.
org.apache.flink.api.common.state.KeyedStateStore	windowState() State accessor for per-key and per-window state.

从类继承的方法 java.lang.Object

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

方法详细资料

window

public W window()

从类复制的说明: ProcessWindowFunction.Context

Returns the window that is being evaluated.

指定者:

window 在类中 ProcessWindowFunction.Context

currentProcessingTime

public long currentProcessingTime()

从类复制的说明: ProcessWindowFunction.Context

Returns the current processing time.

指定者:

currentProcessingTime 在类中 ProcessWindowFunction.Context

currentWatermark

public long currentWatermark()

从类复制的说明: ProcessWindowFunction.Context

Returns the current event-time watermark.

指定者:

currentWatermark 在类中 ProcessWindowFunction.Context

windowState

public org.apache.flink.api.common.state.KeyedStateStore windowState()

从类复制的说明: ProcessWindowFunction.Context

State accessor for per-key and per-window state.

NOTE:If you use per-window state you have to ensure that you clean it up by implementing ProcessWindowFunction.clear(Context).

指定者:

windowState 在类中 ProcessWindowFunction.Context

globalState

public org.apache.flink.api.common.state.KeyedStateStore globalState()

从类复制的说明: ProcessWindowFunction.Context

State accessor for per-key global state.

指定者:

globalState 在类中 ProcessWindowFunction.Context

output

public <X> void output(org.apache.flink.util.OutputTag<X> outputTag,
                       X value)

从类复制的说明: ProcessWindowFunction.Context

Emits a record to the side output identified by the OutputTag.

指定者:

output 在类中 ProcessWindowFunction.Context

参数:

outputTag - the OutputTag that identifies the side output to emit to.

value - The record to emit.