com.ibm.portal.cp.rating
Interface RatingAverageCalculator

public interface RatingAverageCalculator

A RatingAverageCalculator can be used in order to calculate the average value for given RatingSpaces or Ratings.

A RatingAverageCalculator may be plugged in using the extension point EXTENSION_POINT_ID. RatingAverageCalculator implementations must provide a 0-argument constructor.

Since:

7.0.0

Field Summary

static java.lang.String	ATTR_CLASS name of the class attribute used for instantiation
static java.lang.String	EXTENSION_POINT_ID Extension point whihc can be used to plug in different rating average calculation strategies

Method Summary

double	averageFromRatings(IterableListModel<Rating> ratings) Calculates the average for a given list of Ratings
double	averageFromRatingSpaces(IterableListModel<RatingSpace> ratingSpaces) Calculates the average for a given list of RatingSpaces

Field Detail

EXTENSION_POINT_ID

static final java.lang.String EXTENSION_POINT_ID

Extension point whihc can be used to plug in different rating average calculation strategies

See Also:

Constant Field Values

ATTR_CLASS

static final java.lang.String ATTR_CLASS

name of the class attribute used for instantiation

See Also:

Constant Field Values

Method Detail

averageFromRatingSpaces

double averageFromRatingSpaces(IterableListModel<RatingSpace> ratingSpaces)

Calculates the average for a given list of RatingSpaces

Parameters:

ratingSpaces - The rating spaces serving as calculation base

Returns:

An average value according to the implemented calculation algorithm

averageFromRatings

double averageFromRatings(IterableListModel<Rating> ratings)

Calculates the average for a given list of Ratings

Parameters:

ratings - The ratings serving as calculation base

Returns:

An average value according to the implemented calculation algorithm