Package it.unimi.dsi.fastutil.objects

Class AbstractObjectBigList<K>

java.lang.Object

java.util.AbstractCollection<K>

it.unimi.dsi.fastutil.objects.AbstractObjectCollection<K>

it.unimi.dsi.fastutil.objects.AbstractObjectBigList<K>

All Implemented Interfaces:

BigList<K>, ObjectBigList<K>, ObjectCollection<K>, ObjectIterable<K>, Size64, Stack<K>, Comparable<BigList<? extends K>>, Iterable<K>, Collection<K>

Direct Known Subclasses:

AbstractObjectBigList.ObjectSubList, ObjectBigArrayBigList, ObjectBigLists.ListBigList, ObjectBigLists.Singleton

public abstract class AbstractObjectBigList<K>
extends AbstractObjectCollection<K>
implements ObjectBigList<K>, Stack<K>

An abstract class providing basic methods for big lists implementing a type-specific big list interface.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	AbstractObjectBigList.ObjectSubList<K>	A class implementing a sublist view.

Method Summary

Modifier and Type	Method	Description
void	add(long index, K k)	Inserts the specified element at the specified position in this big list (optional operation).
boolean	add(K k)
boolean	addAll(long index, Collection<? extends K> c)	Adds all of the elements in the specified collection to this list (optional operation).
boolean	addAll(Collection<? extends K> c)
void	addElements(long index, K[][] a)	Add (hopefully quickly) elements to this type-specific big list.
void	addElements(long index, K[][] a, long offset, long length)	Add (hopefully quickly) elements to this type-specific big list.
void	clear()
int	compareTo(BigList<? extends K> l)	Compares this big list to another object.
boolean	contains(Object k)	Returns true if this list contains the specified element.
boolean	equals(Object o)
void	getElements(long from, Object[][] a, long offset, long length)	Copies (hopefully quickly) elements of this type-specific big list into the given big array.
int	hashCode()	Returns the hash code for this big list, which is identical to List.hashCode().
long	indexOf(Object k)	Returns the index of the first occurrence of the specified element in this big list, or -1 if this big list does not contain the element.
ObjectBigListIterator<K>	iterator()	Returns a type-specific iterator on the elements of this collection.
long	lastIndexOf(Object k)	Returns the index of the last occurrence of the specified element in this big list, or -1 if this big list does not contain the element.
ObjectBigListIterator<K>	listIterator()	Returns a type-specific big-list iterator on this type-specific big list.
ObjectBigListIterator<K>	listIterator(long index)	Returns a type-specific list iterator on this type-specific big list starting at a given index.
K	peek(int i)	Peeks at an element on the stack (optional operation).
K	pop()	Pops the top off the stack.
void	push(K o)	Pushes the given object on the stack.
K	remove(long i)	Removes the element at the specified position.
void	removeElements(long from, long to)	Removes (hopefully quickly) elements of this type-specific big list.
K	set(long index, K k)	Replaces the element at the specified position in this big list with the specified element (optional operation).
int	size()	Deprecated. Please use Size64.size64() instead.
void	size(long size)	Sets the size of this big list.
ObjectBigList<K>	subList(long from, long to)	Returns a type-specific view of the portion of this type-specific big list from the index from, inclusive, to the index to, exclusive.
K	top()	Peeks at the top of the stack (optional operation).
String	toString()

Methods inherited from class java.util.AbstractCollection

containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.BigList

get

Methods inherited from interface java.util.Collection

containsAll, isEmpty, parallelStream, remove, removeAll, removeIf, retainAll, spliterator, stream, toArray, toArray, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface it.unimi.dsi.fastutil.Size64

size64

Methods inherited from interface it.unimi.dsi.fastutil.Stack

isEmpty

Method Detail

add

public void add(long index,
                K k)

Inserts the specified element at the specified position in this big list (optional operation).

This implementation always throws an UnsupportedOperationException.

Specified by:

add in interface BigList<K>

Parameters:

index - a position in the big list.

k - an element to be inserted.

See Also:

List.add(int,Object)

add

public boolean add(K k)

This implementation delegates to the type-specific version of BigList.add(long, Object).

Specified by:

add in interface Collection<K>

Overrides:

add in class AbstractCollection<K>

remove

public K remove(long i)

Removes the element at the specified position.

This implementation always throws an UnsupportedOperationException.

Specified by:

remove in interface BigList<K>

Parameters:

i - a position in the big list.

Returns:

the element previously at the specified position.

See Also:

List.remove(int)

set

public K set(long index,
             K k)

Replaces the element at the specified position in this big list with the specified element (optional operation).

This implementation always throws an UnsupportedOperationException.

Specified by:

set in interface BigList<K>

Parameters:

index - a position in the big list.

k - the element to be stored at the specified position.

Returns:

the element previously at the specified positions.

See Also:

List.set(int,Object)

addAll

public boolean addAll(long index,
                      Collection<? extends K> c)

Adds all of the elements in the specified collection to this list (optional operation).

Specified by:

addAll in interface BigList<K>

Parameters:

index - index at which to insert the first element from the specified collection.

c - collection containing elements to be added to this big list.

Returns:

true if this big list changed as a result of the call

See Also:

List.addAll(int, Collection)

addAll

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

This implementation delegates to the type-specific version of BigList.addAll(long, Collection).

Specified by:

addAll in interface Collection<K>

Overrides:

addAll in class AbstractCollection<K>

iterator

public ObjectBigListIterator<K> iterator()

Returns a type-specific iterator on the elements of this collection.

Note that this specification strengthens the one given in Iterable.iterator(), which was already strengthened in the corresponding type-specific class, but was weakened by the fact that this interface extends Collection.

This implementation delegates to listIterator().

Specified by:

iterator in interface Collection<K>

Specified by:

iterator in interface Iterable<K>

Specified by:

iterator in interface ObjectBigList<K>

Specified by:

iterator in interface ObjectCollection<K>

Specified by:

iterator in interface ObjectIterable<K>

Specified by:

iterator in class AbstractObjectCollection<K>

Returns:

a type-specific iterator on the elements of this collection.

See Also:

Iterable.iterator()

listIterator

public ObjectBigListIterator<K> listIterator()

Returns a type-specific big-list iterator on this type-specific big list.

Note that this specification strengthens the one given in BigList.listIterator().

This implementation delegates to listIterator(0).

Specified by:

listIterator in interface BigList<K>

Specified by:

listIterator in interface ObjectBigList<K>

Returns:

a big-list iterator over the elements in this big list.

See Also:

BigList.listIterator()

listIterator

public ObjectBigListIterator<K> listIterator(long index)

Returns a type-specific list iterator on this type-specific big list starting at a given index.

Note that this specification strengthens the one given in BigList.listIterator(long).

This implementation is based on the random-access methods.

Specified by:

listIterator in interface BigList<K>

Specified by:

listIterator in interface ObjectBigList<K>

Parameters:

index - index of first element to be returned from the big-list iterator.

Returns:

a big-list iterator of the elements in this big list, starting at the specified position in this big list.

See Also:

BigList.listIterator(long)

contains

public boolean contains(Object k)

Returns true if this list contains the specified element.

This implementation delegates to indexOf().

Specified by:

contains in interface Collection<K>

Overrides:

contains in class AbstractCollection<K>

See Also:

Collection.contains(Object)

indexOf

public long indexOf(Object k)

Description copied from interface: BigList

Returns the index of the first occurrence of the specified element in this big list, or -1 if this big list does not contain the element.

Specified by:

indexOf in interface BigList<K>

Parameters:

k - the object to search for.

Returns:

the index of the first occurrence of the specified element in this big list, or -1 if this big list does not contain the element.

See Also:

List.indexOf(Object)

lastIndexOf

public long lastIndexOf(Object k)

Description copied from interface: BigList

Returns the index of the last occurrence of the specified element in this big list, or -1 if this big list does not contain the element.

Specified by:

lastIndexOf in interface BigList<K>

Parameters:

k - the object to search for.

Returns:

the index of the last occurrence of the specified element in this big list, or -1 if this big list does not contain the element.

See Also:

List.lastIndexOf(Object)

size

public void size(long size)

Description copied from interface: BigList

Sets the size of this big list.

If the specified size is smaller than the current size, the last elements are discarded. Otherwise, they are filled with 0/null/false.

Specified by:

size in interface BigList<K>

Parameters:

size - the new size.

subList

public ObjectBigList<K> subList(long from,
                                long to)

Description copied from interface: ObjectBigList

Returns a type-specific view of the portion of this type-specific big list from the index from, inclusive, to the index to, exclusive.

Note that this specification strengthens the one given in BigList.subList(long,long).

Specified by:

subList in interface BigList<K>

Specified by:

subList in interface ObjectBigList<K>

Parameters:

from - the starting element (inclusive).

to - the ending element (exclusive).

Returns:

a big sublist view of this big list.

See Also:

BigList.subList(long,long)

removeElements

public void removeElements(long from,
                           long to)

Removes (hopefully quickly) elements of this type-specific big list.

This is a trivial iterator-based implementation. It is expected that implementations will override this method with a more optimized version.

Specified by:

removeElements in interface ObjectBigList<K>

Parameters:

from - the start index (inclusive).

to - the end index (exclusive).

addElements

public void addElements(long index,
                        K[][] a,
                        long offset,
                        long length)

Add (hopefully quickly) elements to this type-specific big list.

This is a trivial iterator-based implementation. It is expected that implementations will override this method with a more optimized version.

Specified by:

addElements in interface ObjectBigList<K>

Parameters:

index - the index at which to add elements.

a - the big array containing the elements.

offset - the offset of the first element to add.

length - the number of elements to add.

addElements

public void addElements(long index,
                        K[][] a)

Add (hopefully quickly) elements to this type-specific big list.

This implementation delegates to the analogous method for big-array fragments.

Specified by:

addElements in interface ObjectBigList<K>

Parameters:

index - the index at which to add elements.

a - the big array containing the elements.

getElements

public void getElements(long from,
                        Object[][] a,
                        long offset,
                        long length)

Copies (hopefully quickly) elements of this type-specific big list into the given big array.

This is a trivial iterator-based implementation. It is expected that implementations will override this method with a more optimized version.

Specified by:

getElements in interface ObjectBigList<K>

Parameters:

from - the start index (inclusive).

a - the destination big array.

offset - the offset into the destination big array where to store the first element copied.

length - the number of elements to be copied.

clear

public void clear()

This implementation delegates to removeElements(long, long).

Specified by:

clear in interface Collection<K>

Overrides:

clear in class AbstractCollection<K>

size

@Deprecated
public int size()

Deprecated.

Please use Size64.size64() instead.

Returns the size of this data structure, minimized with Integer.MAX_VALUE.

This default implementation follows the definition above, which is compatible with Collection.size().

This implementation delegates to Size64.size64().

Specified by:

size in interface BigList<K>

Specified by:

size in interface Collection<K>

Specified by:

size in interface Size64

Specified by:

size in class AbstractCollection<K>

Returns:

the size of this data structure, minimized with Integer.MAX_VALUE.

See Also:

Collection.size()

hashCode

public int hashCode()

Returns the hash code for this big list, which is identical to List.hashCode().

Specified by:

hashCode in interface Collection<K>

Overrides:

hashCode in class Object

Returns:

the hash code for this big list.

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection<K>

Overrides:

equals in class Object

compareTo

public int compareTo(BigList<? extends K> l)

Compares this big list to another object. If the argument is a BigList, this method performs a lexicographical comparison; otherwise, it throws a ClassCastException.

Specified by:

compareTo in interface Comparable<K>

Parameters:

l - a big list.

Returns:

if the argument is a BigList, a negative integer, zero, or a positive integer as this list is lexicographically less than, equal to, or greater than the argument.

Throws:

ClassCastException - if the argument is not a big list.

push

public void push(K o)

Description copied from interface: Stack

Pushes the given object on the stack.

Specified by:

push in interface Stack<K>

Parameters:

o - the object that will become the new top of the stack.

pop

public K pop()

Description copied from interface: Stack

Pops the top off the stack.

Specified by:

pop in interface Stack<K>

Returns:

the top of the stack.

top

public K top()

Description copied from interface: Stack

Peeks at the top of the stack (optional operation).

This default implementation returns peek(0).

Specified by:

top in interface Stack<K>

Returns:

the top of the stack.

peek

public K peek(int i)

Description copied from interface: Stack

Peeks at an element on the stack (optional operation).

This default implementation just throws an UnsupportedOperationException.

Specified by:

peek in interface Stack<K>

Parameters:

i - an index from the stop of the stack (0 represents the top).

Returns:

the i-th element on the stack.

toString

public String toString()

Overrides:

toString in class AbstractObjectCollection<K>