org.apache.mahout.classifier.bayes
Interface Datastore

All Known Implementing Classes:

InMemoryBayesDatastore

public interface Datastore

The Datastore interface for the Algorithm to use

Method Summary

Collection<String>	getKeys(String name) get the keySet of a given Matrix/Vector as given by name
double	getWeight(String vectorName, String index) Gets a double value from the Vector pointed to by the vectorName from its cell pointed to by the index
double	getWeight(String matrixName, String row, String column) Gets a double value from the Matrix pointed to by the matrixName from its cell pointed to by the row and column string
void	initialize() Initializes the and loads the model into memory/cache if necessary

Method Detail

getWeight

double getWeight(String matrixName,
                 String row,
                 String column)
                 throws InvalidDatastoreException

Gets a double value from the Matrix pointed to by the matrixName from its cell pointed to by the row and column string

Parameters:

matrixName -

row -

column -

Returns:

double value

Throws:

InvalidDatastoreException

getWeight

double getWeight(String vectorName,
                 String index)
                 throws InvalidDatastoreException

Gets a double value from the Vector pointed to by the vectorName from its cell pointed to by the index

Parameters:

vectorName -

index -

Returns:

double value

Throws:

InvalidDatastoreException

getKeys

Collection<String> getKeys(String name)
                           throws InvalidDatastoreException

get the keySet of a given Matrix/Vector as given by name

Parameters:

name -

Returns:

Collection of keys of Matrix/Vector

Throws:

InvalidDatastoreException

initialize

void initialize()
                throws InvalidDatastoreException

Initializes the and loads the model into memory/cache if necessary

Throws:

InvalidDatastoreException