uk.ac.ed.epcc.webapp.charts.strategy

Interface RangeMapper<T>

Type Parameters:

T - type of object being mapped

All Superinterfaces:

PlotStrategy

All Known Subinterfaces:

FixedSetRangeMapper<T>, LabelledSetRangeMapper<T>, SetRangeMapper<T>

All Known Implementing Classes:

HashMapper, HistoryFactory.Mapper

public interface RangeMapper<T>
extends PlotStrategy

Formatting object for mapping objects to time series. Objects are assumed to map onto a finite time range of the plot these methods query the overlap of an object to a time range and extract the appropriate contribution to the graph. Note we use the convention that time periods come after the start time and contain the end time.

Method Summary

Modifier and Type	Method and Description
float	getOverlapp(T o, java.util.Date start, java.util.Date end) get the contribution of the object to the specified time period.
boolean	overlapps(T o, java.util.Date start, java.util.Date end) does this object overlap with the specified time period.

Method Detail

getOverlapp

float getOverlapp(T o,
                  java.util.Date start,
                  java.util.Date end)
           throws java.lang.Exception

get the contribution of the object to the specified time period.

Parameters:

o -

start - period start as Date

end - period end as Date

Returns:

value of overlapp.

Throws:

java.lang.Exception

overlapps

boolean overlapps(T o,
                  java.util.Date start,
                  java.util.Date end)

does this object overlap with the specified time period.

Parameters:

o -

start - period start as Date

end - period end as Date

Returns:

true if overlapps