org.apache.flink.streaming.runtime.watermarkstatus

类 StatusWatermarkValve.InputChannelStatus

java.lang.Object

org.apache.flink.streaming.runtime.watermarkstatus.StatusWatermarkValve.InputChannelStatus

封闭类:

StatusWatermarkValve

@VisibleForTesting
protected static class StatusWatermarkValve.InputChannelStatus
extends Object

An InputChannelStatus keeps track of an input channel's last watermark, stream status, and whether or not the channel's current watermark is aligned with the overall watermark output from the valve.

There are 2 situations where a channel's watermark is not considered aligned:

• the current watermark status of the channel is idle
• the watermark status has resumed to be active, but the watermark of the channel hasn't caught up to the last output watermark from the valve yet.

NOTE: This class implements HeapPriorityQueue.HeapPriorityQueueElement to be managed by StatusWatermarkValve.alignedChannelStatuses to help find minimum watermark.

字段概要

字段

限定符和类型	字段和说明
protected boolean	isWatermarkAligned
static int	NOT_CONTAINED The index that indicates that a HeapPriorityQueueElement object is not contained in and managed by any HeapPriorityQueue.
protected long	watermark
protected WatermarkStatus	watermarkStatus

构造器概要

构造器

限定符	构造器和说明
protected	InputChannelStatus()

方法概要

限定符和类型	方法和说明
int	getInternalIndex() Returns the current index of this object in the internal array of HeapPriorityQueue.
void	setInternalIndex(int newIndex) Sets the current index of this object in the HeapPriorityQueue and should only be called by the owning HeapPriorityQueue.

从类继承的方法 java.lang.Object

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

字段详细资料

watermark

protected long watermark

watermarkStatus

protected WatermarkStatus watermarkStatus

isWatermarkAligned

protected boolean isWatermarkAligned

NOT_CONTAINED

public static final int NOT_CONTAINED

The index that indicates that a HeapPriorityQueueElement object is not contained in and managed by any HeapPriorityQueue. We do not strictly enforce that internal indexes must be reset to this value when elements are removed from a HeapPriorityQueue.

另请参阅:

常量字段值

构造器详细资料

InputChannelStatus

protected InputChannelStatus()

方法详细资料

getInternalIndex

public int getInternalIndex()

Returns the current index of this object in the internal array of HeapPriorityQueue.

setInternalIndex

public void setInternalIndex(int newIndex)

Sets the current index of this object in the HeapPriorityQueue and should only be called by the owning HeapPriorityQueue.

参数:

newIndex - the new index in the timer heap.