org.lenskit.data.entities

Class AbstractBeanEntityBuilder

java.lang.Object

org.lenskit.data.entities.EntityBuilder

org.lenskit.data.entities.AbstractBeanEntityBuilder

Direct Known Subclasses:

RatingBuilder

public class AbstractBeanEntityBuilder
extends EntityBuilder

Base class for entity builders using bean-style setters. An entity builder should extend this class, then annotate setter methods with EntityAttributeSetter (and clearers with EntityAttributeClearer). The standard methods will then be implemented in terms of these.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AbstractBeanEntityBuilder.AttrMethod Abstract class for accessing attribute methods.
static class	AbstractBeanEntityBuilder.DoubleAttrMethod
static class	AbstractBeanEntityBuilder.LongAttrMethod

Field Summary

Fields inherited from class org.lenskit.data.entities.EntityBuilder

id, idSet, type

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractBeanEntityBuilder(EntityType type)

Method Summary

Modifier and Type	Method and Description
Entity	build() Build the entity.
EntityBuilder	clearAttribute(TypedName<?> name) Clear an attribute.
void	clearExtraAttribute(TypedName<?> name) Clear an extra attribute.
<T> EntityBuilder	setAttribute(TypedName<T> name, T val) Set an attribute in the entity.
<T> void	setExtraAttribute(TypedName<T> name, T val) Set an extra attribute.
EntityBuilder	setLongAttribute(TypedName<java.lang.Long> name, long val) Set an attribute in the entity.

Methods inherited from class org.lenskit.data.entities.EntityBuilder

reset, setAttribute, setDoubleAttribute, setId

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractBeanEntityBuilder

protected AbstractBeanEntityBuilder(EntityType type)

Method Detail

setAttribute

public <T> EntityBuilder setAttribute(TypedName<T> name,
                                      T val)

Description copied from class: EntityBuilder

Set an attribute in the entity.

Specified by:

setAttribute in class EntityBuilder

Parameters:

name - The name of the attribute to set.

val - The attribute value.

Returns:

The entity builder (for chaining).

clearAttribute

public EntityBuilder clearAttribute(TypedName<?> name)

Description copied from class: EntityBuilder

Clear an attribute.

Specified by:

clearAttribute in class EntityBuilder

Parameters:

name - The name of the attribute to clear.

Returns:

The entity builder (for chaining).

setExtraAttribute

public <T> void setExtraAttribute(TypedName<T> name,
                                  T val)

Set an extra attribute. An extra attribute is an attribute that is not provided by a bean-style setter.

The default implementation throws NoSuchAttributeException.

Parameters:

name - The attribute name to clear.

val - The attribute value to set.

clearExtraAttribute

public void clearExtraAttribute(TypedName<?> name)

Clear an extra attribute. An extra attribute is an attribute that is not provided by a bean-style setter.

The default implementation does nothing.

Parameters:

name - The attribute name to clear.

setLongAttribute

public EntityBuilder setLongAttribute(TypedName<java.lang.Long> name,
                                      long val)

Description copied from class: EntityBuilder

Set an attribute in the entity.

Overrides:

setLongAttribute in class EntityBuilder

Parameters:

name - The name of the attribute to set.

val - The attribute value.

Returns:

The entity builder (for chaining).

build

public Entity build()

Description copied from class: EntityBuilder

Build the entity.

Specified by:

build in class EntityBuilder

Returns:

The entity to build.