org.lenskit.data.ratings

Class PreferenceDomainBuilder

java.lang.Object

org.lenskit.data.ratings.PreferenceDomainBuilder

All Implemented Interfaces:

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

public class PreferenceDomainBuilder
extends Object
implements org.apache.commons.lang3.builder.Builder<PreferenceDomain>

Build a PreferenceDomain.

Since:

1.2

Constructor Summary

Constructors

Constructor and Description
PreferenceDomainBuilder() Create an uninitialized preference domain builder.
PreferenceDomainBuilder(double min, double max) Create a preference domain builder with a specified minimum and maximum.

Method Summary

Modifier and Type	Method and Description
PreferenceDomain	build()
double	getMaximum() Get the maximum preference.
double	getMinimum() Get the minimum preference.
double	getPrecision() Get the preference precision.
PreferenceDomainBuilder	setMaximum(double max) Set the maximum preference.
PreferenceDomainBuilder	setMinimum(double min) Set the minimum preference.
PreferenceDomainBuilder	setPrecision(double prec) Set the preference precision.

Methods inherited from class java.lang.Object

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

Constructor Detail

PreferenceDomainBuilder

public PreferenceDomainBuilder()

Create an uninitialized preference domain builder. The minimum and maximum must be provided before the build() method may be called.

PreferenceDomainBuilder

public PreferenceDomainBuilder(double min,
                               double max)

Create a preference domain builder with a specified minimum and maximum.

Parameters:

min - The minimum preference.

max - The maximum preference.

Method Detail

getMinimum

public double getMinimum()

Get the minimum preference.

Returns:

The minimum preference.

setMinimum

public PreferenceDomainBuilder setMinimum(double min)

Set the minimum preference.

Parameters:

min - The minimum preference.

Returns:

The builder (for chaining).

getMaximum

public double getMaximum()

Get the maximum preference.

Returns:

The maximum preference.

setMaximum

public PreferenceDomainBuilder setMaximum(double max)

Set the maximum preference.

Parameters:

max - The maximum preference.

Returns:

The builder (for chaining).

getPrecision

public double getPrecision()

Get the preference precision.

Returns:

The preference precision.

setPrecision

public PreferenceDomainBuilder setPrecision(double prec)

Set the preference precision.

Parameters:

prec - The preference precision, or Double.NaN for unlimited precision.

Returns:

The preference precision.

build

public PreferenceDomain build()

Specified by:

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