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

Class GenericRecommendedItem

java.lang.Object

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

All Implemented Interfaces:

Serializable, RecommendedItem

public final class GenericRecommendedItem
extends Object
implements RecommendedItem, Serializable

A simple implementation of RecommendedItem.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
GenericRecommendedItem(long itemID, float value)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
long	getItemID()
float	getValue() A value expressing the strength of the preference for the recommended item.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

GenericRecommendedItem

public GenericRecommendedItem(long itemID,
                              float value)

Throws:

IllegalArgumentException - if item is null or value is NaN

Method Detail

getItemID

public long getItemID()

Specified by:

getItemID in interface RecommendedItem

Returns:

the recommended item ID

getValue

public float getValue()

Description copied from interface: RecommendedItem

A value expressing the strength of the preference for the recommended item. The range of the values depends on the implementation. Implementations must use larger values to express stronger preference.

Specified by:

getValue in interface RecommendedItem

Returns:

strength of the preference

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object