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

类 WindowOperator.WindowContext

java.lang.Object

org.apache.flink.streaming.runtime.operators.windowing.WindowOperator.WindowContext

所有已实现的接口:

Serializable, InternalWindowFunction.InternalWindowContext

封闭类:

WindowOperator<K,IN,ACC,OUT,W extends Window>

public class WindowOperator.WindowContext
extends Object
implements InternalWindowFunction.InternalWindowContext

A utility class for handling ProcessWindowFunction invocations. This can be reused by setting the key and window fields. No internal state must be kept in the WindowContext.

另请参阅:

序列化表格

字段概要

字段

限定符和类型	字段和说明
protected W	window
protected WindowOperator.AbstractPerWindowStateStore	windowState

构造器概要

构造器

构造器和说明
WindowContext(W window)

方法概要

限定符和类型	方法和说明
void	clear()
long	currentProcessingTime()
long	currentWatermark()
org.apache.flink.api.common.state.KeyedStateStore	globalState()
<X> void	output(org.apache.flink.util.OutputTag<X> outputTag, X value)
String	toString()
org.apache.flink.api.common.state.KeyedStateStore	windowState()

从类继承的方法 java.lang.Object

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

字段详细资料

window

protected W extends Window window

windowState

protected WindowOperator.AbstractPerWindowStateStore windowState

构造器详细资料

WindowContext

public WindowContext(W window)

方法详细资料

toString

public String toString()

覆盖:

toString 在类中 Object

clear

public void clear()
           throws Exception

抛出:

Exception

currentProcessingTime

public long currentProcessingTime()

指定者:

currentProcessingTime 在接口中 InternalWindowFunction.InternalWindowContext

currentWatermark

public long currentWatermark()

指定者:

currentWatermark 在接口中 InternalWindowFunction.InternalWindowContext

windowState

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

指定者:

windowState 在接口中 InternalWindowFunction.InternalWindowContext

globalState

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

指定者:

globalState 在接口中 InternalWindowFunction.InternalWindowContext

output

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

指定者:

output 在接口中 InternalWindowFunction.InternalWindowContext