Package pt.ptcris.grouper

Class ActivityComparator<A>

java.lang.Object

pt.ptcris.grouper.ActivityComparator<A>

Type Parameters:

A - the type of activities being compared

Direct Known Subclasses:

IntegerComparator, StdWorkComparator

public abstract class ActivityComparator<A>
extends java.lang.Object

An activity comparator used by the grouper to creates groups of matching activities. Concrete implementations should be provided by the users through a compare(Object, Object) that calculates a similarity metric between to activities, and a threshold().

Constructor Summary

Constructors

Constructor	Description
ActivityComparator()

Method Summary

Modifier and Type	Method	Description
abstract float	compare(A act1, A act2)	Calculates a similarity metric between two activities.
abstract int	threshold()	A (non-inclusive) threshold on the similarity metric that defines matching activities.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ActivityComparator

public ActivityComparator()

Method Detail

threshold

public abstract int threshold()

A (non-inclusive) threshold on the similarity metric that defines matching activities.

Returns:

the threshold value

compare

public abstract float compare(A act1,
                              A act2)

Calculates a similarity metric between two activities.

Parameters:

act1 - one activity

act2 - other activity

Returns:

the similarity metric between the activities