Package com.xceptance.xlt.api.util

Class SimpleArrayList<T>

java.lang.Object

com.xceptance.xlt.api.util.SimpleArrayList<T>

All Implemented Interfaces:

Iterable<T>, Collection<T>, List<T>, SequencedCollection<T>

public class SimpleArrayList<T>
extends Object
implements List<T>

Inexpensive (partial) list implementation. Not fully implemented, just what is needed. As soon as iterators and other things are involved, the memory savings we wanted are gone.

Minimal checks for data correctness!! This is tuned for speed not elegance or safety.

Since:

7.0.0

Constructor Summary

Constructors

Constructor	Description
SimpleArrayList(int capacity)	Create a new list with a default capacity.

Method Summary

Modifier and Type	Method	Description
void	add(int index, T element)
boolean	add(T element)	Add an element to the end of the list
boolean	addAll(int index, Collection<? extends T> c)
boolean	addAll(Collection<? extends T> c)
void	clear()	Clears the list by setting the size to zero.
boolean	contains(Object o)
boolean	containsAll(Collection<?> c)
T	get(int index)	Return an element at index.
int	indexOf(Object o)
boolean	isEmpty()
Iterator<T>	iterator()
int	lastIndexOf(Object o)
ListIterator<T>	listIterator()
ListIterator<T>	listIterator(int index)
List<List<T>>	partition(int count)	Returns view partitions on the underlying list.
T	remove(int index)
boolean	remove(Object o)
boolean	removeAll(Collection<?> c)
boolean	retainAll(Collection<?> c)
T	set(int index, T element)
int	size()	Returns the size of this list
List<T>	subList(int fromIndex, int toIndex)
Object[]	toArray()	Creates an array of the elements.
<T> T[]	toArray(T[] array)	Creates an array of the elements.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.List

addFirst, addLast, equals, getFirst, getLast, hashCode, removeFirst, removeLast, replaceAll, reversed, sort, spliterator

Constructor Details

SimpleArrayList

public SimpleArrayList(int capacity)

Create a new list with a default capacity.

Parameters:

capacity - the capacity

Method Details

add

public boolean add(T element)

Add an element to the end of the list

Specified by:

add in interface Collection<T>

Specified by:

add in interface List<T>

Parameters:

element - the element to add

Returns:

true if added and for this impl it is always true

get

public T get(int index)

Return an element at index. No range checks at all.

Specified by:

get in interface List<T>

Parameters:

index - the position

Returns:

the element at this position

size

public int size()

Returns the size of this list

Specified by:

size in interface Collection<T>

Specified by:

size in interface List<T>

toArray

public Object[] toArray()

Creates an array of the elements. This is a copy operation!

Specified by:

toArray in interface Collection<T>

Specified by:

toArray in interface List<T>

Returns:

an array of the elements

toArray

public <T> T[] toArray(T[] array)

Creates an array of the elements. This is a copy operation!

Specified by:

toArray in interface Collection<T>

Specified by:

toArray in interface List<T>

Returns:

an array of the elements

clear

public void clear()

Clears the list by setting the size to zero. It does not release any elements for performance purposes.

Specified by:

clear in interface Collection<T>

Specified by:

clear in interface List<T>

partition

public List<List<T>> partition(int count)

Returns view partitions on the underlying list. If the count is larger than size you get back the maximum possible list number with one element each. If count is 0 or smaller, we correct it to 1.

Parameters:

count - how many list do we want

Returns:

a list of lists

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<T>

Specified by:

isEmpty in interface List<T>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<T>

Specified by:

contains in interface List<T>

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Collection<T>

Specified by:

iterator in interface Iterable<T>

Specified by:

iterator in interface List<T>

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<T>

Specified by:

remove in interface List<T>

containsAll

public boolean containsAll(Collection<?> c)

Specified by:

containsAll in interface Collection<T>

Specified by:

containsAll in interface List<T>

addAll

public boolean addAll(Collection<? extends T> c)

Specified by:

addAll in interface Collection<T>

Specified by:

addAll in interface List<T>

addAll

public boolean addAll(int index,
 Collection<? extends T> c)

Specified by:

addAll in interface List<T>

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<T>

Specified by:

removeAll in interface List<T>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<T>

Specified by:

retainAll in interface List<T>

set

public T set(int index,
 T element)

Specified by:

set in interface List<T>

add

public void add(int index,
 T element)

Specified by:

add in interface List<T>

remove

public T remove(int index)

Specified by:

remove in interface List<T>

indexOf

public int indexOf(Object o)

Specified by:

indexOf in interface List<T>

lastIndexOf

public int lastIndexOf(Object o)

Specified by:

lastIndexOf in interface List<T>

listIterator

public ListIterator<T> listIterator()

Specified by:

listIterator in interface List<T>

listIterator

public ListIterator<T> listIterator(int index)

Specified by:

listIterator in interface List<T>

subList

public List<T> subList(int fromIndex,
 int toIndex)

Specified by:

subList in interface List<T>