org.grouplens.lenskit.data.pref

Class IndexedPreferenceBuilder

java.lang.Object

org.grouplens.lenskit.data.pref.IndexedPreferenceBuilder

All Implemented Interfaces:

org.apache.commons.lang3.builder.Builder<IndexedPreference>

public final class IndexedPreferenceBuilder
extends Object
implements org.apache.commons.lang3.builder.Builder<IndexedPreference>

Build an indexed preference.

Since:

0.11

Compatibility

Public

Constructor Summary

Constructors

Constructor and Description
IndexedPreferenceBuilder()

Method Summary

Modifier and Type	Method and Description
IndexedPreference	build() Build the indexed preference.
static IndexedPreferenceBuilder	copy(IndexedPreference pref) Create a new preference builder initialized as a copy of a preference.
IndexedPreferenceBuilder	setIndex(int i) Set the preference's index.
IndexedPreferenceBuilder	setItemId(long i) Set the preference's item ID.
IndexedPreferenceBuilder	setItemIndex(int iidx) Set the preference's item index.
IndexedPreferenceBuilder	setUserId(long u) Set the preference's user ID.
IndexedPreferenceBuilder	setUserIndex(int uidx) Set the preference's user index.
IndexedPreferenceBuilder	setValue(double v) Set the preference's value.

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexedPreferenceBuilder

public IndexedPreferenceBuilder()

Method Detail

copy

public static IndexedPreferenceBuilder copy(IndexedPreference pref)

Create a new preference builder initialized as a copy of a preference.

Parameters:

pref - The preference to copy.

Returns:

A new builder initialized with a copy of pref's data.

setIndex

public IndexedPreferenceBuilder setIndex(int i)

Set the preference's index.

Parameters:

i - The index.

Returns:

The preference builder (for chaining).

setUserId

public IndexedPreferenceBuilder setUserId(long u)

Set the preference's user ID.

Parameters:

u - The user ID.

Returns:

The preference builder (for chaining).

setUserIndex

public IndexedPreferenceBuilder setUserIndex(int uidx)

Set the preference's user index.

Parameters:

uidx - The user index.

Returns:

The preference builder (for chaining).

setItemId

public IndexedPreferenceBuilder setItemId(long i)

Set the preference's item ID.

Parameters:

i - The item ID.

Returns:

The preference builder (for chaining).

setItemIndex

public IndexedPreferenceBuilder setItemIndex(int iidx)

Set the preference's item index.

Parameters:

iidx - The item index.

Returns:

The preference builder (for chaining).

setValue

public IndexedPreferenceBuilder setValue(double v)

Set the preference's value.

Parameters:

v - The preference value.

Returns:

The preference builder (for chaining).

build

public IndexedPreference build()

Build the indexed preference.

Specified by:

build in interface org.apache.commons.lang3.builder.Builder<IndexedPreference>

Returns:

The newly-constructed indexed preference.