org.lenskit.basic

Class SimpleCachingItemScorer

java.lang.Object

org.lenskit.basic.AbstractItemScorer

org.lenskit.basic.SimpleCachingItemScorer

All Implemented Interfaces:

ItemScorer

public class SimpleCachingItemScorer
extends AbstractItemScorer

A simple cached item scorer that remembers the result for the last user id it scored.

Constructor Summary

Constructors

Constructor and Description
SimpleCachingItemScorer(ItemScorer sc)

Method Summary

Modifier and Type	Method and Description
ResultMap	getCache()
long	getId()
ResultMap	scoreWithDetails(long user, java.util.Collection<java.lang.Long> items) Score a collection of items and potentially return more details on the scores.

Methods inherited from class org.lenskit.basic.AbstractItemScorer

score, score

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleCachingItemScorer

@Inject
public SimpleCachingItemScorer(ItemScorer sc)

Method Detail

scoreWithDetails

@Nonnull
public ResultMap scoreWithDetails(long user,
                                           @Nonnull
                                           java.util.Collection<java.lang.Long> items)

Description copied from interface: ItemScorer

Score a collection of items and potentially return more details on the scores.

Parameters:

user - The user ID for whom to generate scores.

items - The item to score.

Returns:

The scores for the items. This result set may not contain all requested items. Implementations that support additional details will return a subclass of ResultMap that provides access to those details.

getId

public long getId()

getCache

public ResultMap getCache()