prajna.data

Interface Track<T>

Type Parameters:

T - The type of data being tracked

All Superinterfaces:

Temporal

All Known Implementing Classes:

GeoTrack

public interface Track<T>
extends Temporal

Interface for any object with dynamic values. This interface can be used for geographic tracks. It can also be used for tracing the changes to a measurement over time, or an indexed sequence of words, such as in a news feed.

Author:

Edward Swing

Method Summary

Methods

Modifier and Type	Method and Description
T	getCurrentValue() Returns the current value based upon the current time setting for this track.
DataRecord	getData() Get the data record associated with this track.
T	getValue(java.util.Date time) Get the value in the track at the specified time.
T	getValue(int index) Return the value for the given index.
boolean	isTimed() return whether the track is indexed by time
void	setData(DataRecord data) Set the data record associated with this track.

Methods inherited from interface prajna.data.Temporal

getCurTime, setCurTime

Method Detail

getCurrentValue

T getCurrentValue()

Returns the current value based upon the current time setting for this track.

Returns:

the current value for the track

getData

DataRecord getData()

Get the data record associated with this track.

Returns:

the data record associated with this track.

getValue

T getValue(java.util.Date time)

Get the value in the track at the specified time. If the track is not timed, this method should return null. If the track is timed, but the specified time does not match one of the timed coordinates, the value should be interpolated if possible.

Parameters:

time - the time to check

Returns:

the value for this track at the specified time

getValue

T getValue(int index)

Return the value for the given index.

Parameters:

index - the index of the position

Returns:

the value for the specified index

isTimed

boolean isTimed()

return whether the track is indexed by time

Returns:

true if the track positions have associated times, false otherwise

setData

void setData(DataRecord data)

Set the data record associated with this track.

Parameters:

data - the data record associated with this track.