org.grouplens.lenskit.scored

Class PackedScoredIdList

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<ScoredId>

org.grouplens.lenskit.scored.PackedScoredIdList

All Implemented Interfaces:

Serializable, Iterable<ScoredId>, Collection<ScoredId>, List<ScoredId>, FastCollection<ScoredId>

public final class PackedScoredIdList
extends AbstractList<ScoredId>
implements FastCollection<ScoredId>, Serializable

A space-efficient, unboxed list of scored IDs. These lists are immutable; create them using a ScoredIdListBuilder (see ScoredIds.newListBuilder().

Since:

1.4

Author:

GroupLens Research

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Method Summary

Methods

Modifier and Type	Method and Description
Iterator<ScoredId>	fastIterator() Return a fast iterator.
ScoredId	get(int i)
int	size()

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList

Methods inherited from class java.util.AbstractCollection

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, toArray, toArray

Methods inherited from interface java.util.List

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray

Method Detail

size

public int size()

Specified by:

size in interface Collection<ScoredId>

Specified by:

size in interface List<ScoredId>

Specified by:

size in class AbstractCollection<ScoredId>

fastIterator

public Iterator<ScoredId> fastIterator()

Description copied from interface: FastCollection

Return a fast iterator. The iterator may not actually be fast; if the underlying structure does not support fast iteration, the iterator may return distinct objects every time. However, that is usually in cases where the underlying collection is storing distinct objects anyway so no overhead is introduced.

Specified by:

fastIterator in interface FastCollection<ScoredId>

Returns:

An iterator that may not return distinct objects.

get

public ScoredId get(int i)

Specified by:

get in interface List<ScoredId>

Specified by:

get in class AbstractList<ScoredId>