org.apache.mahout.cf.taste.impl.recommender.svd

Interface PersistenceStrategy

All Known Implementing Classes:

FilePersistenceStrategy, NoPersistenceStrategy

public interface PersistenceStrategy

Provides storage for Factorizations

Method Summary

Modifier and Type	Method and Description
Factorization	load() Load a factorization from a persistent store.
void	maybePersist(Factorization factorization) Write a factorization to a persistent store unless it already contains an identical factorization.

Method Detail

load

Factorization load()
            throws IOException

Load a factorization from a persistent store.

Returns:

a Factorization or null if the persistent store is empty.

Throws:

IOException

maybePersist

void maybePersist(Factorization factorization)
           throws IOException

Write a factorization to a persistent store unless it already contains an identical factorization.

Parameters:

factorization -

Throws:

IOException