Package org.apache.flink.streaming.runtime.watermark

Interface Summary

Interface	Description
Alignable	An interface used to represent the special WatermarkDeclarations can create aligned Watermarks, which need to be aligned when the operator receives them from input channels.
WatermarkCombiner	A class used to combine Watermarks.

Class Summary

Class	Description
AbstractInternalWatermarkDeclaration<T>	The AbstractInternalWatermarkDeclaration class implements the WatermarkDeclaration interface and provides some internal-oriented methods, such as getting/setting the align flag and creating the WatermarkCombiner.
AlignableBoolWatermarkDeclaration	An alignable BoolWatermarkDeclaration.
AlignableLongWatermarkDeclaration	An alignable LongWatermarkDeclaration.
AlignedWatermarkCombiner	A WatermarkCombiner is design to align Watermarks.
BoolWatermarkCombiner	A WatermarkCombiner for unaligned BoolWatermarks.
InternalBoolWatermarkDeclaration	The InternalBoolWatermarkDeclaration class implements the AbstractInternalWatermarkDeclaration interface and provides additional functionality specific to boolean-type watermarks.
InternalLongWatermarkDeclaration	The InternalLongWatermarkDeclaration class implements the AbstractInternalWatermarkDeclaration interface and provides additional functionality specific to long-type watermarks.
LongWatermarkCombiner	A WatermarkCombiner for unaligned LongWatermarks.
LongWatermarkCombiner.LongWatermarkElement	This class implements HeapPriorityQueue.HeapPriorityQueueElement to help find the maximum/minimum LongWatermark.