jsat.utils

Class LongList

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<Long>

jsat.utils.LongList

All Implemented Interfaces:

Serializable, Iterable<Long>, Collection<Long>, List<Long>

public class LongList
extends AbstractList<Long>
implements Serializable

Provides a modifiable implementation of a List using an array of longs. This provides considerable memory efficency improvements over using an ArrayList to store longs. Null is not allowed into the list.

Author:

Edward Raff

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor and Description
LongList() Creates a new LongList
LongList(Collection<Long> c)
LongList(int capacity) Creates a new LongList with the given initial capacity

Method Summary

Modifier and Type	Method and Description
void	add(int index, long element) Operates exactly as add(int, java.lang.Long)
void	add(int index, Long element)
boolean	add(long e) Operates exactly as add(java.lang.Long)
boolean	add(Long e)
void	clear()
Long	get(int index)
long	getL(int index) Operates exactly as get(int)
Long	remove(int index)
long	set(int index, long element) Operates exactly as set(int, java.lang.Long)
Long	set(int index, Long element)
int	size()
static List<Long>	view(long[] array, int length) Creates and returns a view of the given long array that requires only a small object allocation.

Methods inherited from class java.util.AbstractList

addAll, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, removeRange, 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.List

addAll, contains, containsAll, isEmpty, remove, removeAll, replaceAll, retainAll, sort, spliterator, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

LongList

public LongList()

Creates a new LongList

LongList

public LongList(int capacity)

Creates a new LongList with the given initial capacity

Parameters:

capacity - the starting internal storage space size

LongList

public LongList(Collection<Long> c)

Method Detail

clear

public void clear()

Specified by:

clear in interface Collection<Long>

Specified by:

clear in interface List<Long>

Overrides:

clear in class AbstractList<Long>

set

public long set(int index,
                long element)

Operates exactly as set(int, java.lang.Long)

Parameters:

index - the index to set

element - the value to set

Returns:

the previous value at the index

set

public Long set(int index,
                Long element)

Specified by:

set in interface List<Long>

Overrides:

set in class AbstractList<Long>

add

public void add(int index,
                long element)

Operates exactly as add(int, java.lang.Long)

Parameters:

index - the index to add the value into

element - the value to add

add

public void add(int index,
                Long element)

Specified by:

add in interface List<Long>

Overrides:

add in class AbstractList<Long>

add

public boolean add(long e)

Operates exactly as add(java.lang.Long)

Parameters:

e - the value to add

Returns:

true if it was added, false otherwise

add

public boolean add(Long e)

Specified by:

add in interface Collection<Long>

Specified by:

add in interface List<Long>

Overrides:

add in class AbstractList<Long>

getL

public long getL(int index)

Operates exactly as get(int)

Parameters:

index - the index of the value to get

Returns:

the value at the index

get

public Long get(int index)

Specified by:

get in interface List<Long>

Specified by:

get in class AbstractList<Long>

size

public int size()

Specified by:

size in interface Collection<Long>

Specified by:

size in interface List<Long>

Specified by:

size in class AbstractCollection<Long>

remove

public Long remove(int index)

Specified by:

remove in interface List<Long>

Overrides:

remove in class AbstractList<Long>

view

public static List<Long> view(long[] array,
                              int length)

Creates and returns a view of the given long array that requires only a small object allocation.

Parameters:

array - the array to wrap into a list

length - the number of values of the array to use, starting from zero

Returns:

a list view of the array