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Implementations encapsulate items that are recommended, and include the item recommended and a value expressing the strength of the preference.

public interface RecommendedItem extends Comparable<RecommendedItem> {


the recommended item ID
  long getItemID();


A value expressing the strength of the preference for the recommended item. The range of the values depends on the implementation. Implementations must use larger values to express stronger preference.

strength of the preference
  float getValue();
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