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

类 SliceAssigners.WindowedSliceAssigner

java.lang.Object

org.apache.flink.table.runtime.operators.window.slicing.SliceAssigners.WindowedSliceAssigner

所有已实现的接口:

Serializable, SliceAssigner, SliceUnsharedAssigner

封闭类:

SliceAssigners

public static final class SliceAssigners.WindowedSliceAssigner
extends Object
implements SliceUnsharedAssigner

The SliceAssigner for elements have been attached window start and end timestamps.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
WindowedSliceAssigner(int windowEndIndex, SliceAssigner innerAssigner)

方法概要

限定符和类型	方法和说明
long	assignSliceEnd(org.apache.flink.table.data.RowData element, ClockService clock) Returns the end timestamp of a slice that the given element should belong.
Iterable<Long>	expiredSlices(long windowEnd) Returns an iterator of slices to expire when the given window is emitted.
long	getLastWindowEnd(long sliceEnd) Returns the last window which the slice belongs to.
long	getSliceEndInterval() Returns the interval of slice ends, i.e. the step size to advance of the slice end when a new slice assigned.
long	getWindowStart(long windowEnd) Returns the corresponding window start timestamp of the given window end timestamp.
boolean	isEventTime() Returns true if elements are assigned to windows based on event time, false based on processing time.

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

WindowedSliceAssigner

public WindowedSliceAssigner(int windowEndIndex,
                             SliceAssigner innerAssigner)

方法详细资料

assignSliceEnd

public long assignSliceEnd(org.apache.flink.table.data.RowData element,
                           ClockService clock)

从接口复制的说明: SliceAssigner

Returns the end timestamp of a slice that the given element should belong.

指定者:

assignSliceEnd 在接口中 SliceAssigner

参数:

element - the element to which slice should belong to.

clock - the service to get current processing time.

getLastWindowEnd

public long getLastWindowEnd(long sliceEnd)

从接口复制的说明: SliceAssigner

Returns the last window which the slice belongs to. The window and and slices are both identified by the end timestamp.

指定者:

getLastWindowEnd 在接口中 SliceAssigner

getWindowStart

public long getWindowStart(long windowEnd)

从接口复制的说明: SliceAssigner

Returns the corresponding window start timestamp of the given window end timestamp.

指定者:

getWindowStart 在接口中 SliceAssigner

expiredSlices

public Iterable<Long> expiredSlices(long windowEnd)

从接口复制的说明: SliceAssigner

Returns an iterator of slices to expire when the given window is emitted. The window and slices are both identified by the end timestamp.

指定者:

expiredSlices 在接口中 SliceAssigner

参数:

windowEnd - the end timestamp of window emitted.

getSliceEndInterval

public long getSliceEndInterval()

从接口复制的说明: SliceAssigner

Returns the interval of slice ends, i.e. the step size to advance of the slice end when a new slice assigned.

指定者:

getSliceEndInterval 在接口中 SliceAssigner

isEventTime

public boolean isEventTime()

从接口复制的说明: SliceAssigner

Returns true if elements are assigned to windows based on event time, false based on processing time.

指定者:

isEventTime 在接口中 SliceAssigner