org.apache.flink.table.runtime.operators.window.assigners

类 PanedWindowAssigner<W extends Window>

java.lang.Object

org.apache.flink.table.runtime.operators.window.assigners.WindowAssigner<W>

org.apache.flink.table.runtime.operators.window.assigners.PanedWindowAssigner<W>

类型参数:

W - The type of Window that this assigner assigns.

所有已实现的接口:

Serializable

直接已知子类:

SlidingWindowAssigner

public abstract class PanedWindowAssigner<W extends Window>
extends WindowAssigner<W>

A WindowAssigner that window can be split into panes.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
PanedWindowAssigner()

方法概要

限定符和类型	方法和说明
abstract W	assignPane(Object element, long timestamp) Given the timestamp and element, returns the pane into which it should be placed.
abstract W	getLastWindow(W pane) Gets the last window which the pane belongs to.
abstract Iterable<W>	splitIntoPanes(W window) Splits the given window into panes collection.

从类继承的方法 org.apache.flink.table.runtime.operators.window.assigners.WindowAssigner

assignWindows, getWindowSerializer, isEventTime, open, toString

从类继承的方法 java.lang.Object

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

构造器详细资料

PanedWindowAssigner

public PanedWindowAssigner()

方法详细资料

assignPane

public abstract W assignPane(Object element,
                             long timestamp)

Given the timestamp and element, returns the pane into which it should be placed.

参数:

element - The element to which windows should be assigned.

timestamp - The timestamp of the element when WindowAssigner.isEventTime() returns true, or the current system time when WindowAssigner.isEventTime() returns false.

splitIntoPanes

public abstract Iterable<W> splitIntoPanes(W window)

Splits the given window into panes collection.

参数:

window - the window to be split.

返回:

the panes iterable

getLastWindow

public abstract W getLastWindow(W pane)

Gets the last window which the pane belongs to.