Class LongLists.Singleton
- java.lang.Object
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- java.util.AbstractCollection<java.lang.Long>
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- it.unimi.dsi.fastutil.longs.AbstractLongCollection
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- it.unimi.dsi.fastutil.longs.AbstractLongList
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- it.unimi.dsi.fastutil.longs.LongLists.Singleton
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- All Implemented Interfaces:
LongCollection
,LongIterable
,LongList
,LongStack
,Stack<java.lang.Long>
,java.io.Serializable
,java.lang.Cloneable
,java.lang.Comparable<java.util.List<? extends java.lang.Long>>
,java.lang.Iterable<java.lang.Long>
,java.util.Collection<java.lang.Long>
,java.util.List<java.lang.Long>
,java.util.RandomAccess
- Enclosing class:
- LongLists
public static class LongLists.Singleton extends AbstractLongList implements java.util.RandomAccess, java.io.Serializable, java.lang.Cloneable
An immutable class representing a type-specific singleton list.This class may be useful to implement your own in case you subclass a type-specific list.
- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from class it.unimi.dsi.fastutil.longs.AbstractLongList
AbstractLongList.LongSubList
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description boolean
addAll(int i, LongCollection c)
Inserts all of the elements in the specified type-specific collection into this type-specific list at the specified position (optional operation).boolean
addAll(int i, LongList c)
Inserts all of the elements in the specified type-specific list into this type-specific list at the specified position (optional operation).boolean
addAll(int i, java.util.Collection<? extends java.lang.Long> c)
Adds all of the elements in the specified collection to this list (optional operation).boolean
addAll(LongCollection c)
Adds all elements of the given type-specific collection to this collection.boolean
addAll(LongList c)
Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).boolean
addAll(java.util.Collection<? extends java.lang.Long> c)
void
addElements(int index, long[] a)
Add (hopefully quickly) elements to this type-specific list.void
addElements(int index, long[] a, int offset, int length)
Add (hopefully quickly) elements to this type-specific list.void
clear()
java.lang.Object
clone()
boolean
contains(long k)
Returns true if this list contains the specified element.long
getLong(int i)
Returns the element at the specified position in this list.LongListIterator
iterator()
Returns a type-specific iterator on the elements of this collection.LongListIterator
listIterator()
Returns a type-specific list iterator on the list.LongListIterator
listIterator(int i)
Returns a type-specific list iterator on the list starting at a given index.boolean
rem(long k)
Removes a single instance of the specified element from this collection, if it is present (optional operation).boolean
removeAll(LongCollection c)
Remove from this collection all elements in the given type-specific collection.boolean
removeAll(java.util.Collection<?> c)
void
removeElements(int from, int to)
Removes (hopefully quickly) elements of this type-specific list.long
removeLong(int i)
Removes the element at the specified position in this list (optional operation).boolean
retainAll(LongCollection c)
Retains in this collection only elements from the given type-specific collection.boolean
retainAll(java.util.Collection<?> c)
void
setElements(int index, long[] a)
Set (hopefully quickly) elements to match the array given.void
setElements(int index, long[] a, int offset, int length)
Set (hopefully quickly) elements to match the array given.void
setElements(long[] a)
Set (hopefully quickly) elements to match the array given.int
size()
void
size(int size)
Sets the size of this list.void
sort(LongComparator comparator)
Sort a list using a type-specific comparator.void
sort(java.util.Comparator<? super java.lang.Long> comparator)
Deprecated.LongList
subList(int from, int to)
Returns a type-specific view of the portion of this list from the indexfrom
, inclusive, to the indexto
, exclusive.long[]
toLongArray()
Returns a primitive type array containing the items of this collection.void
unstableSort(LongComparator comparator)
Sorts this list using a sort not assured to be stable.void
unstableSort(java.util.Comparator<? super java.lang.Long> comparator)
Deprecated.-
Methods inherited from class it.unimi.dsi.fastutil.longs.AbstractLongList
add, add, compareTo, equals, getElements, hashCode, indexOf, lastIndexOf, peekLong, popLong, push, set, topLong, toString
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Methods inherited from class it.unimi.dsi.fastutil.longs.AbstractLongCollection
add, contains, containsAll, containsAll, remove, toArray, toLongArray
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Methods inherited from interface java.util.List
containsAll, isEmpty, replaceAll, spliterator, toArray, toArray
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Methods inherited from interface it.unimi.dsi.fastutil.longs.LongCollection
containsAll, removeIf, removeIf, toArray, toLongArray
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Methods inherited from interface it.unimi.dsi.fastutil.longs.LongIterable
forEach, forEach
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Method Detail
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getLong
public long getLong(int i)
Description copied from interface:LongList
Returns the element at the specified position in this list.
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rem
public boolean rem(long k)
Description copied from class:AbstractLongList
Removes a single instance of the specified element from this collection, if it is present (optional operation).This implementation delegates to
indexOf()
.- Specified by:
rem
in interfaceLongCollection
- Overrides:
rem
in classAbstractLongList
- See Also:
List.remove(Object)
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removeLong
public long removeLong(int i)
Description copied from class:AbstractLongList
Removes the element at the specified position in this list (optional operation).This implementation always throws an
UnsupportedOperationException
.- Specified by:
removeLong
in interfaceLongList
- Overrides:
removeLong
in classAbstractLongList
- See Also:
List.remove(int)
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contains
public boolean contains(long k)
Description copied from class:AbstractLongList
Returns true if this list contains the specified element.This implementation delegates to
indexOf()
.- Specified by:
contains
in interfaceLongCollection
- Overrides:
contains
in classAbstractLongList
- See Also:
List.contains(Object)
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toLongArray
public long[] toLongArray()
Description copied from interface:LongCollection
Returns a primitive type array containing the items of this collection.- Specified by:
toLongArray
in interfaceLongCollection
- Overrides:
toLongArray
in classAbstractLongCollection
- Returns:
- a primitive type array containing the items of this collection.
- See Also:
Collection.toArray()
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listIterator
public LongListIterator listIterator()
Description copied from class:AbstractLongList
Returns a type-specific list iterator on the list.This implementation delegates to
listIterator(0)
.- Specified by:
listIterator
in interfacejava.util.List<java.lang.Long>
- Specified by:
listIterator
in interfaceLongList
- Overrides:
listIterator
in classAbstractLongList
- See Also:
List.listIterator()
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iterator
public LongListIterator iterator()
Description copied from class:AbstractLongList
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 extendsCollection
.This implementation delegates to
AbstractLongList.listIterator()
.- Specified by:
iterator
in interfacejava.util.Collection<java.lang.Long>
- Specified by:
iterator
in interfacejava.lang.Iterable<java.lang.Long>
- Specified by:
iterator
in interfacejava.util.List<java.lang.Long>
- Specified by:
iterator
in interfaceLongCollection
- Specified by:
iterator
in interfaceLongIterable
- Specified by:
iterator
in interfaceLongList
- Overrides:
iterator
in classAbstractLongList
- Returns:
- a type-specific iterator on the elements of this collection.
- See Also:
Iterable.iterator()
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listIterator
public LongListIterator listIterator(int i)
Description copied from class:AbstractLongList
Returns a type-specific list iterator on the list starting at a given index.This implementation is based on the random-access methods.
- Specified by:
listIterator
in interfacejava.util.List<java.lang.Long>
- Specified by:
listIterator
in interfaceLongList
- Overrides:
listIterator
in classAbstractLongList
- See Also:
List.listIterator(int)
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subList
public LongList subList(int from, int to)
Description copied from interface:LongList
Returns a type-specific view of the portion of this list from the indexfrom
, inclusive, to the indexto
, exclusive.Note that this specification strengthens the one given in
List.subList(int,int)
.- Specified by:
subList
in interfacejava.util.List<java.lang.Long>
- Specified by:
subList
in interfaceLongList
- Overrides:
subList
in classAbstractLongList
- See Also:
List.subList(int,int)
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addAll
public boolean addAll(int i, java.util.Collection<? extends java.lang.Long> c)
Description copied from class:AbstractLongList
Adds all of the elements in the specified collection to this list (optional operation).- Specified by:
addAll
in interfacejava.util.List<java.lang.Long>
- Overrides:
addAll
in classAbstractLongList
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addAll
public boolean addAll(java.util.Collection<? extends java.lang.Long> c)
Description copied from class:AbstractLongList
This implementation delegates to the type-specific version if given a type-specific collection, otherwise is uses the implementation from
AbstractCollection
.This implementation delegates to the type-specific version of
List.addAll(int, Collection)
.- Specified by:
addAll
in interfacejava.util.Collection<java.lang.Long>
- Specified by:
addAll
in interfacejava.util.List<java.lang.Long>
- Overrides:
addAll
in classAbstractLongList
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removeAll
public boolean removeAll(java.util.Collection<?> c)
Description copied from class:AbstractLongCollection
This implementation delegates to the type-specific version if given a type-specific collection, otherwise is uses the implementation from
AbstractCollection
.- Specified by:
removeAll
in interfacejava.util.Collection<java.lang.Long>
- Specified by:
removeAll
in interfacejava.util.List<java.lang.Long>
- Overrides:
removeAll
in classAbstractLongCollection
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retainAll
public boolean retainAll(java.util.Collection<?> c)
Description copied from class:AbstractLongCollection
This implementation delegates to the type-specific version if given a type-specific collection, otherwise is uses the implementation from
AbstractCollection
.- Specified by:
retainAll
in interfacejava.util.Collection<java.lang.Long>
- Specified by:
retainAll
in interfacejava.util.List<java.lang.Long>
- Overrides:
retainAll
in classAbstractLongCollection
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addAll
public boolean addAll(LongList c)
Description copied from class:AbstractLongList
Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).This implementation delegates to the type-specific list version of
List.addAll(int, Collection)
.- Specified by:
addAll
in interfaceLongList
- Overrides:
addAll
in classAbstractLongList
- See Also:
List.add(int,Object)
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addAll
public boolean addAll(int i, LongList c)
Description copied from class:AbstractLongList
Inserts all of the elements in the specified type-specific list into this type-specific list at the specified position (optional operation).This implementation delegates to the type-specific version of
List.addAll(int, Collection)
.- Specified by:
addAll
in interfaceLongList
- Overrides:
addAll
in classAbstractLongList
- See Also:
List.add(int,Object)
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addAll
public boolean addAll(int i, LongCollection c)
Description copied from interface:LongList
Inserts all of the elements in the specified type-specific collection into this type-specific list at the specified position (optional operation).- Specified by:
addAll
in interfaceLongList
- Overrides:
addAll
in classAbstractLongList
- See Also:
List.addAll(int,java.util.Collection)
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addAll
public boolean addAll(LongCollection c)
Description copied from class:AbstractLongList
Adds all elements of the given type-specific collection to this collection.This implementation delegates to the type-specific version of
List.addAll(int, Collection)
.- Specified by:
addAll
in interfaceLongCollection
- Overrides:
addAll
in classAbstractLongList
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection changed as a result of the call.- See Also:
Collection.addAll(Collection)
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removeAll
public boolean removeAll(LongCollection c)
Description copied from interface:LongCollection
Remove from this collection all elements in the given type-specific collection.- Specified by:
removeAll
in interfaceLongCollection
- Overrides:
removeAll
in classAbstractLongCollection
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection changed as a result of the call.- See Also:
Collection.removeAll(Collection)
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retainAll
public boolean retainAll(LongCollection c)
Description copied from interface:LongCollection
Retains in this collection only elements from the given type-specific collection.- Specified by:
retainAll
in interfaceLongCollection
- Overrides:
retainAll
in classAbstractLongCollection
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection changed as a result of the call.- See Also:
Collection.retainAll(Collection)
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sort
public void sort(LongComparator comparator)
Description copied from interface:LongList
Sort a list using a type-specific comparator.Pass
null
to sort using natural ordering.
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unstableSort
public void unstableSort(LongComparator comparator)
Description copied from interface:LongList
Sorts this list using a sort not assured to be stable.Pass
null
to sort using natural ordering.This differs from
List.sort(java.util.Comparator)
in that the results are not assured to be stable, but may be a bit faster.Unless a subclass specifies otherwise, the results of the method if the list is concurrently modified during the sort are unspecified.
- Specified by:
unstableSort
in interfaceLongList
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sort
@Deprecated public void sort(java.util.Comparator<? super java.lang.Long> comparator)
Deprecated.Description copied from interface:LongList
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unstableSort
@Deprecated public void unstableSort(java.util.Comparator<? super java.lang.Long> comparator)
Deprecated.Description copied from interface:LongList
Sorts this list using a sort not assured to be stable.- Specified by:
unstableSort
in interfaceLongList
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removeElements
public void removeElements(int from, int to)
Description copied from class:AbstractLongList
Removes (hopefully quickly) elements of this type-specific 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 interfaceLongList
- Overrides:
removeElements
in classAbstractLongList
- Parameters:
from
- the start index (inclusive).to
- the end index (exclusive).
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addElements
public void addElements(int index, long[] a)
Description copied from class:AbstractLongList
Add (hopefully quickly) elements to this type-specific list.This implementation delegates to the analogous method for array fragments.
- Specified by:
addElements
in interfaceLongList
- Overrides:
addElements
in classAbstractLongList
- Parameters:
index
- the index at which to add elements.a
- the array containing the elements.
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addElements
public void addElements(int index, long[] a, int offset, int length)
Description copied from class:AbstractLongList
Add (hopefully quickly) elements to this type-specific 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 interfaceLongList
- Overrides:
addElements
in classAbstractLongList
- Parameters:
index
- the index at which to add elements.a
- the array containing the elements.offset
- the offset of the first element to add.length
- the number of elements to add.
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setElements
public void setElements(long[] a)
Description copied from interface:LongList
Set (hopefully quickly) elements to match the array given.- Specified by:
setElements
in interfaceLongList
- Parameters:
a
- the array containing the elements.
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setElements
public void setElements(int index, long[] a)
Description copied from interface:LongList
Set (hopefully quickly) elements to match the array given.- Specified by:
setElements
in interfaceLongList
- Parameters:
index
- the index at which to start setting elements.a
- the array containing the elements.
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setElements
public void setElements(int index, long[] a, int offset, int length)
Description copied from interface:LongList
Set (hopefully quickly) elements to match the array given. Sets each in this list to the corresponding elements in the array, as if by
However, the exact implementation may be more efficient, taking into account whether random access is faster or not, or at the discretion of subclasses, abuse internals.ListIterator iter = listIterator(index); int i = 0; while (i < length) { iter.next(); iter.set(a[offset + i++]); }
- Specified by:
setElements
in interfaceLongList
- Parameters:
index
- the index at which to start setting elements.a
- the array containing the elementsoffset
- the offset of the first element to add.length
- the number of elements to add.
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size
public int size()
- Specified by:
size
in interfacejava.util.Collection<java.lang.Long>
- Specified by:
size
in interfacejava.util.List<java.lang.Long>
- Specified by:
size
in classjava.util.AbstractCollection<java.lang.Long>
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size
public void size(int size)
Description copied from interface:LongList
Sets the size of this 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 interfaceLongList
- Overrides:
size
in classAbstractLongList
- Parameters:
size
- the new size.
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clear
public void clear()
Description copied from class:AbstractLongList
This implementation delegates to
AbstractLongList.removeElements(int, int)
.- Specified by:
clear
in interfacejava.util.Collection<java.lang.Long>
- Specified by:
clear
in interfacejava.util.List<java.lang.Long>
- Overrides:
clear
in classAbstractLongList
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clone
public java.lang.Object clone()
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