| 程序包 | 说明 |
|---|---|
| org.apache.flink.table.runtime.operators.window | |
| org.apache.flink.table.runtime.operators.window.triggers |
| 类和说明 |
|---|
| Trigger
A
Trigger determines when a pane of a window should be evaluated to emit the
results for that part of the window. |
| 类和说明 |
|---|
| ElementTriggers.CountElement
A
Trigger that fires at some point after a specified number of
input elements have arrived. |
| ElementTriggers.EveryElement
A
Trigger that triggers on every element. |
| EventTimeTriggers.AfterEndOfWindow
A
Trigger that fires once the watermark passes the end of the window
to which a pane belongs. |
| EventTimeTriggers.AfterEndOfWindowNoLate
A composite
Trigger that consist of AfterEndOfWindow and a late trigger. |
| ProcessingTimeTriggers.AfterEndOfWindow
A
Trigger that fires once the current system time passes the end of the window
to which a pane belongs. |
| ProcessingTimeTriggers.AfterEndOfWindowNoLate
A composite
Trigger that consist of AfterEndOfWindow and a early trigger. |
| ProcessingTimeTriggers.AfterFirstElementPeriodic
Trigger every a given interval, the first trigger time is interval
after the first element in the pane.
|
| Trigger
A
Trigger determines when a pane of a window should be evaluated to emit the
results for that part of the window. |
| Trigger.OnMergeContext
Extension of
Trigger.TriggerContext that is given to
Trigger.onMerge(Window, OnMergeContext). |
| Trigger.TriggerContext
A context object that is given to
Trigger methods to allow them to register timer
callbacks and deal with state. |
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