DistanceDomain

public interface DistanceDomain<M>

Interface that must be implemented by a distance metric to be used with the spatial operators and models of Moonlight.

Functions

public abstract boolean equalTo(M x, M y)

Tells whether the first distance is equivalent to the second

public abstract M infinity()

Maximal allowed distance

public abstract boolean less(M x, M y)

Tells whether the first distance is smaller than the second

public abstract boolean lessOrEqual(M x, M y)

Tells whether the first distance is smaller or equal to the second.

public M multiply(M x, int factor)

Method to combine the metric `x`, `factor` times

public abstract M sum(M x, M y)

Method to combine two distances

public abstract M zero()

Minimal allowed distance