Package ubic.gemma.model.util

Class SparseArrayList<T>

java.lang.Object

java.util.AbstractCollection<T>

java.util.AbstractList<T>

ubic.gemma.model.util.SparseArrayList<T>

Type Parameters:

T - the type of elements in the array

All Implemented Interfaces:

Iterable<T>, Collection<T>, List<T>, SparseList<T>

public class SparseArrayList<T>
extends AbstractList<T>
implements SparseList<T>

A sparse array backed by an ArrayList.

This array uses a common encoding for sparse encoding such as CSR and CSC. Data points are stored in two vectors: elements and indices. To make operations efficient, the indices are kept in-order.

Author:

poirigui

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor	Description
SparseArrayList()	Create an empty sparse array.
SparseArrayList(Collection<T> collection)	Create a new sparse array from a given collection, null is used as default value.
SparseArrayList(Collection<T> collection, T defaultValue)
SparseArrayList(List<T> array, int[] indices, int numberOfElements)	Create a new sparse array, null is used as default value.
SparseArrayList(List<T> array, int[] indices, int numberOfElements, T defaultValue)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
T	get(int i)
int	indexOf(Object o)
int	lastIndexOf(Object o)
int	size()
int	storageSize()	The number of elements actually stored.

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, hashCode, iterator, 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

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.List

add, add, addAll, addAll, clear, contains, containsAll, hashCode, isEmpty, iterator, listIterator, listIterator, remove, remove, removeAll, replaceAll, retainAll, set, sort, spliterator, subList, toArray, toArray

Constructor Details

SparseArrayList

public SparseArrayList(Collection<T> collection,
 T defaultValue)

SparseArrayList

public SparseArrayList(Collection<T> collection)

Create a new sparse array from a given collection, null is used as default value.

SparseArrayList

public SparseArrayList(List<T> array,
 int[] indices,
 int numberOfElements,
 T defaultValue)

SparseArrayList

public SparseArrayList(List<T> array,
 int[] indices,
 int numberOfElements)

Create a new sparse array, null is used as default value.

SparseArrayList

public SparseArrayList()

Create an empty sparse array.

Method Details

get

public T get(int i)

Specified by:

get in interface List<T>

Specified by:

get in class AbstractList<T>

storageSize

public int storageSize()

Description copied from interface: SparseList

The number of elements actually stored.

Specified by:

storageSize in interface SparseList<T>

size

public int size()

Specified by:

size in interface Collection<T>

Specified by:

size in interface List<T>

Specified by:

size in class AbstractCollection<T>

indexOf

public int indexOf(Object o)

Specified by:

indexOf in interface List<T>

Overrides:

indexOf in class AbstractList<T>

lastIndexOf

public int lastIndexOf(Object o)

Specified by:

lastIndexOf in interface List<T>

Overrides:

lastIndexOf in class AbstractList<T>

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection<T>

Specified by:

equals in interface List<T>

Overrides:

equals in class AbstractList<T>