public override IEnumerable <TimeWindow> AssignWindows(TElement element, long timestamp,
WindowAssignerContext context)
{
var processingTime = context.CurrentProcessingTime;
yield return(new TimeWindow(processingTime, processingTime + SessionTimeout));
}
public override IEnumerable <TimeWindow> AssignWindows(TElement element, long timestamp,
WindowAssignerContext context)
{
var currentProcessingTime = context.CurrentProcessingTime;
var sessionTimeout = SessionWindowTimeGapExtractor.Extract(element);
if (sessionTimeout <= 0)
{
throw new IllegalArgumentException("Dynamic session time gap must satisfy 0 < gap");
}
yield return(new TimeWindow(currentProcessingTime, currentProcessingTime + sessionTimeout));
}
public override IEnumerable <TimeWindow> AssignWindows(TElement element, long timestamp,
WindowAssignerContext context)
{
yield return(new TimeWindow(timestamp, timestamp + SessionTimeout));
}
public override IEnumerable <TimeWindow> AssignWindows(TElement element, long timestamp, WindowAssignerContext context)
{
if (timestamp <= long.MinValue)
{
throw new RuntimeException("Record has Long.MIN_VALUE timestamp (= no timestamp marker). " +
"Is the time characteristic set to 'ProcessingTime', or did you forget to call " +
"'DataStream.assignTimestampsAndWatermarks(...)'?");
}
var lastStart = TimeWindow.GetWindowStartWithOffset(timestamp, Offset, Slide);
for (var start = lastStart; start > timestamp - Size; start -= Slide)
{
yield return(new TimeWindow(start, start + Size));
}
}
public override IEnumerable <TimeWindow> AssignWindows(TElement element, long timestamp, WindowAssignerContext context)
{
timestamp = context.CurrentProcessingTime;
var lastStart = TimeWindow.GetWindowStartWithOffset(timestamp, Offset, Slide);
for (var start = lastStart; start > timestamp - Size; start -= Slide)
{
yield return(new TimeWindow(start, start + Size));
}
}
public override IEnumerable <TimeWindow> AssignWindows(TElement element, long timestamp, WindowAssignerContext context)
{
throw new System.NotImplementedException();
}
public override IEnumerable <TimeWindow> AssignWindows(TElement element, long timestamp, WindowAssignerContext context)
{
var now = context.CurrentProcessingTime;
var start = TimeWindow.GetWindowStartWithOffset(now, Offset, Size);
yield return(new TimeWindow(start, start + Size));
}
/// <summary> /// Gets a Collection of windows that should be assigned to the element. /// </summary> /// <param name="element">The element to which windows should be assigned.</param> /// <param name="timestamp">The timestamp of the element.</param> /// <param name="context">The <see cref="WindowAssignerContext"/> in which the assigner operates.</param> public abstract IEnumerable <TWindow> AssignWindows(TElement element, long timestamp, WindowAssignerContext context);