GenericDataModel Class

NReco.Recommender Class Library

A simple IDataModel which uses a given list of users as its data source. This implementation is mostly useful for small experiments and is not recommended for contexts where performance is important.

Inheritance Hierarchy

System Object
NReco.CF.Taste.Impl.Model AbstractDataModel
NReco.CF.Taste.Impl.Model GenericDataModel

Namespace: NReco.CF.Taste.Impl.Model
Assembly: NReco.Recommender (in NReco.Recommender.dll) Version: 1.0.0.0 (1.0.0.0)

Syntax

C++

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[SerializableAttribute]
public sealed class GenericDataModel : AbstractDataModel

[SerializableAttribute]
public sealed class GenericDataModel : AbstractDataModel

<SerializableAttribute>
Public NotInheritable Class GenericDataModel 
	Inherits AbstractDataModel

<SerializableAttribute>
Public NotInheritable Class GenericDataModel 
	Inherits AbstractDataModel

[SerializableAttribute]
public ref class GenericDataModel sealed : public AbstractDataModel

[SerializableAttribute]
public ref class GenericDataModel sealed : public AbstractDataModel

[<SealedAttribute>]
[<SerializableAttribute>]
type GenericDataModel =  
    class 
        inherit AbstractDataModel 
    end

[<SealedAttribute>]
[<SerializableAttribute>]
type GenericDataModel =  
    class 
        inherit AbstractDataModel 
    end

The GenericDataModel type exposes the following members.

Constructors

	Name	Description
	GenericDataModel(FastByIDMap IPreferenceArray )	Creates a new GenericDataModel from the given users (and their preferences). This IDataModel retains all this information in memory and is effectively immutable.
	GenericDataModel(IDataModel)	Creates a new GenericDataModel containing an immutable copy of the data from another given IDataModel.
	GenericDataModel(FastByIDMap IPreferenceArray , FastByIDMap FastByIDMap Nullable DateTime )	Creates a new GenericDataModel from the given users (and their preferences). This IDataModel retains all this information in memory and is effectively immutable.

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Methods

	Name	Description
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetItemIDs	(Overrides AbstractDataModel GetItemIDs .)
	GetItemIDsFromUser	(Overrides AbstractDataModel GetItemIDsFromUser(Int64).)
	GetMaxPreference	(Inherited from AbstractDataModel.)
	GetMinPreference	(Inherited from AbstractDataModel.)
	GetNumItems	(Overrides AbstractDataModel GetNumItems .)
	GetNumUsers	(Overrides AbstractDataModel GetNumUsers .)
	GetNumUsersWithPreferenceFor(Int64)	(Overrides AbstractDataModel GetNumUsersWithPreferenceFor(Int64).)
	GetNumUsersWithPreferenceFor(Int64, Int64)	(Overrides AbstractDataModel GetNumUsersWithPreferenceFor(Int64, Int64).)
	GetPreferencesForItem	(Overrides AbstractDataModel GetPreferencesForItem(Int64).)
	GetPreferencesFromUser	(Overrides AbstractDataModel GetPreferencesFromUser(Int64).)
	GetPreferenceTime	(Overrides AbstractDataModel GetPreferenceTime(Int64, Int64).)
	GetPreferenceValue	(Overrides AbstractDataModel GetPreferenceValue(Int64, Int64).)
	GetRawItemData	This is used mostly internally to the framework, and shouldn't be relied upon otherwise.
	GetRawUserData	This is used mostly internally to the framework, and shouldn't be relied upon otherwise.
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	GetUserIDs	(Overrides AbstractDataModel GetUserIDs .)
	HasPreferenceValues	(Overrides AbstractDataModel HasPreferenceValues .)
	Refresh	(Overrides AbstractDataModel Refresh(IList IRefreshable ).)
	RemovePreference	(Overrides AbstractDataModel RemovePreference(Int64, Int64).)
	SetPreference	(Overrides AbstractDataModel SetPreference(Int64, Int64, Single).)
	ToDataMap(IDataModel)	Exports the simple user IDs and preferences in the data model.
	ToDataMap(FastByIDMap IList IPreference , Boolean)
	ToString	(Overrides Object ToString .)

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