source: profile/src/main/java/geniusweb/profile/utilityspace/LinearAdditive.java

package geniusweb.profile.utilityspace;

import java.math.BigDecimal;
import java.util.Map;

/**
 * interface to a Utilityspace that is linear-additive.
 *
 */
public interface LinearAdditive extends UtilitySpace {
        /**
         * @return the map from issue names to valuesetutilities (un-weighted)
         */
        Map<String, ValueSetUtilities> getUtilities();

        /**
         * 
         * @return the map from issue names to weights. weights sum to 1.
         */
        Map<String, BigDecimal> getWeights();

        /**
         * 
         * @param issue the issue name
         * @return the weight of the given issue
         */
        BigDecimal getWeight(String issue);

}