org.grouplens.lenskit.eval.traintest

Class CachingDAOProvider<T>

java.lang.Object

org.grouplens.lenskit.eval.traintest.CachingDAOProvider<T>

All Implemented Interfaces:

javax.inject.Provider<T>

Direct Known Subclasses:

CachingDAOProvider.Item, CachingDAOProvider.ItemEvent, CachingDAOProvider.User, CachingDAOProvider.UserEvent

public abstract class CachingDAOProvider<T>
extends Object
implements javax.inject.Provider<T>

Caching provider to reduce the duplication of DAO instances in evaluations.

This assumes that each unique DAO object is unchanging. That may or may not be a safe assumption outside the evaluator!

Since:

2.1

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CachingDAOProvider.Item
static class	CachingDAOProvider.ItemEvent
static class	CachingDAOProvider.User
static class	CachingDAOProvider.UserEvent

Method Summary

Modifier and Type	Method and Description
protected abstract T	create(EventDAO dao)
T	get()

Methods inherited from class java.lang.Object

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

Method Detail

create

protected abstract T create(EventDAO dao)

get

public T get()

Specified by:

get in interface javax.inject.Provider<T>