org.lenskit.data.entities

Class EntityIndexBuilder

java.lang.Object

org.lenskit.data.entities.EntityIndexBuilder

public abstract class EntityIndexBuilder
extends Object

Builder for entity indexes. These builders are destructive: their build() method will destroy the builder’s internal state to free memory.

Constructor Summary

Constructors

Constructor and Description
EntityIndexBuilder()

Method Summary

Modifier and Type	Method and Description
abstract void	add(Entity e) Add an entity to the index.
abstract EntityIndex	build() Build the entity index.
static EntityIndexBuilder	create(TypedName<?> name) Create an entity index builder for an attribute.

Methods inherited from class java.lang.Object

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

Constructor Detail

EntityIndexBuilder

public EntityIndexBuilder()

Method Detail

add

public abstract void add(Entity e)

Add an entity to the index.

Parameters:

e - The entity to add.

Throws:

IllegalStateException - if build() has been called.

build

public abstract EntityIndex build()

Build the entity index.

Returns:

The entity index.

create

public static EntityIndexBuilder create(TypedName<?> name)

Create an entity index builder for an attribute.

Parameters:

name - The attribute.

Returns:

The index builder.