org.apache.mahout.cf.taste.impl.model

Class GenericPreference

java.lang.Object

org.apache.mahout.cf.taste.impl.model.GenericPreference

All Implemented Interfaces:

Serializable, Preference

public class GenericPreference
extends Object
implements Preference, Serializable

A simple Preference encapsulating an item and preference value.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
GenericPreference(long userID, long itemID, float value)

Method Summary

Modifier and Type	Method and Description
long	getItemID()
long	getUserID()
float	getValue()
void	setValue(float value) Sets the strength of the preference for this item
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

GenericPreference

public GenericPreference(long userID,
                         long itemID,
                         float value)

Method Detail

getUserID

public long getUserID()

Specified by:

getUserID in interface Preference

Returns:

ID of user who prefers the item

getItemID

public long getItemID()

Specified by:

getItemID in interface Preference

Returns:

item ID that is preferred

getValue

public float getValue()

Specified by:

getValue in interface Preference

Returns:

strength of the preference for that item. Zero should indicate "no preference either way"; positive values indicate preference and negative values indicate dislike

setValue

public void setValue(float value)

Description copied from interface: Preference

Sets the strength of the preference for this item

Specified by:

setValue in interface Preference

Parameters:

value - new preference

toString

public String toString()

Overrides:

toString in class Object