Class LongLists.EmptyList
- java.lang.Object
-
- java.util.AbstractCollection<Long>
-
- it.unimi.dsi.fastutil.longs.AbstractLongCollection
-
- it.unimi.dsi.fastutil.longs.LongCollections.EmptyCollection
-
- it.unimi.dsi.fastutil.longs.LongLists.EmptyList
-
- All Implemented Interfaces:
LongCollection
,LongIterable
,LongList
,Serializable
,Cloneable
,Comparable<List<? extends Long>>
,Iterable<Long>
,Collection<Long>
,List<Long>
,RandomAccess
- Enclosing class:
- LongLists
public static class LongLists.EmptyList extends LongCollections.EmptyCollection implements LongList, RandomAccess, Serializable, Cloneable
An immutable class representing an empty type-specific list.This class may be useful to implement your own in case you subclass a type-specific list.
- See Also:
- Serialized Form
-
-
Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description void
add(int index, long k)
Inserts the specified element at the specified position in this list (optional operation).void
add(int index, Long k)
Deprecated.Please use the corresponding type-specific method instead.boolean
add(Long k)
Deprecated.Please use the corresponding type-specific method instead.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, Collection<? extends Long> c)
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).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.Object
clone()
int
compareTo(List<? extends Long> o)
boolean
equals(Object o)
Long
get(int index)
Deprecated.Please use the corresponding type-specific method instead.void
getElements(int from, long[] a, int offset, int length)
Copies (hopefully quickly) elements of this type-specific list into the given array.long
getLong(int i)
Returns the element at the specified position in this list.int
hashCode()
int
indexOf(long k)
Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.int
indexOf(Object k)
Deprecated.Please use the corresponding type-specific method instead.LongListIterator
iterator()
Returns a type-specific iterator on the elements of this collection.int
lastIndexOf(long k)
Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.int
lastIndexOf(Object k)
Deprecated.Please use the corresponding type-specific method instead.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).Long
remove(int k)
Deprecated.Please use the corresponding type-specific method instead.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).long
set(int index, long k)
Replaces the element at the specified position in this list with the specified element (optional operation).Long
set(int index, Long k)
Deprecated.Please use the corresponding type-specific method instead.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.void
size(int s)
Sets the size of this list.void
sort(LongComparator comparator)
Sort a list using a type-specific comparator.void
sort(Comparator<? super 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.String
toString()
void
unstableSort(LongComparator comparator)
Sorts this list using a sort not assured to be stable.void
unstableSort(Comparator<? super Long> comparator)
Deprecated.-
Methods inherited from class it.unimi.dsi.fastutil.longs.LongCollections.EmptyCollection
addAll, addAll, clear, contains, removeAll, removeAll, retainAll, retainAll, size, toArray
-
Methods inherited from class it.unimi.dsi.fastutil.longs.AbstractLongCollection
add, contains, containsAll, containsAll, remove, toArray, toLongArray, toLongArray
-
Methods inherited from class java.util.AbstractCollection
isEmpty, toArray
-
Methods inherited from interface java.util.Collection
parallelStream, stream, toArray
-
Methods inherited from interface java.util.List
addAll, clear, containsAll, isEmpty, removeAll, replaceAll, retainAll, size, spliterator, toArray, toArray
-
Methods inherited from interface it.unimi.dsi.fastutil.longs.LongCollection
addAll, contains, containsAll, removeAll, removeIf, removeIf, retainAll, toArray, toLongArray, toLongArray
-
Methods inherited from interface it.unimi.dsi.fastutil.longs.LongIterable
forEach, forEach
-
-
-
-
Method Detail
-
getLong
public long getLong(int i)
Description copied from interface:LongList
Returns the element at the specified position in this list.- Specified by:
getLong
in interfaceLongList
- See Also:
List.get(int)
-
rem
public boolean rem(long k)
Description copied from class:AbstractLongCollection
Removes a single instance of the specified element from this collection, if it is present (optional operation).Note that this method should be called
remove()
, but the clash with the similarly named index-based method in theList
interface forces us to use a distinguished name. For simplicity, the set interfaces reinstatesremove()
.This implementation iterates over the elements in the collection, looking for the specified element and tries to remove it.
- Specified by:
rem
in interfaceLongCollection
- Overrides:
rem
in classAbstractLongCollection
- See Also:
Collection.remove(Object)
-
removeLong
public long removeLong(int i)
Description copied from interface:LongList
Removes the element at the specified position in this list (optional operation).- Specified by:
removeLong
in interfaceLongList
- See Also:
List.remove(int)
-
add
public void add(int index, long k)
Description copied from interface:LongList
Inserts the specified element at the specified position in this list (optional operation).- Specified by:
add
in interfaceLongList
- See Also:
List.add(int,Object)
-
set
public long set(int index, long k)
Description copied from interface:LongList
Replaces the element at the specified position in this list with the specified element (optional operation).- Specified by:
set
in interfaceLongList
- See Also:
List.set(int,Object)
-
indexOf
public int indexOf(long k)
Description copied from interface:LongList
Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.- Specified by:
indexOf
in interfaceLongList
- See Also:
List.indexOf(Object)
-
lastIndexOf
public int lastIndexOf(long k)
Description copied from interface:LongList
Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.- Specified by:
lastIndexOf
in interfaceLongList
- See Also:
List.lastIndexOf(Object)
-
addAll
public boolean addAll(int i, Collection<? extends Long> c)
-
addAll
public boolean addAll(LongList c)
Description copied from interface:LongList
Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).- Specified by:
addAll
in interfaceLongList
- See Also:
List.add(int,Object)
-
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
- See Also:
List.addAll(int,java.util.Collection)
-
addAll
public boolean addAll(int i, LongList c)
Description copied from interface:LongList
Inserts all of the elements in the specified type-specific list into this type-specific list at the specified position (optional operation).- Specified by:
addAll
in interfaceLongList
- See Also:
List.add(int,Object)
-
add
@Deprecated public void add(int index, Long k)
Deprecated.Please use the corresponding type-specific method instead.
-
get
@Deprecated public Long get(int index)
Deprecated.Please use the corresponding type-specific method instead.
-
add
@Deprecated public boolean add(Long k)
Deprecated.Please use the corresponding type-specific method instead.- Specified by:
add
in interfaceCollection<Long>
- Specified by:
add
in interfaceList<Long>
- Specified by:
add
in interfaceLongCollection
- Specified by:
add
in interfaceLongList
- Overrides:
add
in classAbstractLongCollection
-
set
@Deprecated public Long set(int index, Long k)
Deprecated.Please use the corresponding type-specific method instead.
-
remove
@Deprecated public Long remove(int k)
Deprecated.Please use the corresponding type-specific method instead.
-
indexOf
@Deprecated public int indexOf(Object k)
Deprecated.Please use the corresponding type-specific method instead.
-
lastIndexOf
@Deprecated public int lastIndexOf(Object k)
Deprecated.Please use the corresponding type-specific method instead.- Specified by:
lastIndexOf
in interfaceList<Long>
- Specified by:
lastIndexOf
in interfaceLongList
-
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.- Specified by:
sort
in interfaceLongList
- See Also:
List.sort(java.util.Comparator)
-
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
-
sort
@Deprecated public void sort(Comparator<? super Long> comparator)
Deprecated.Description copied from interface:LongList
-
unstableSort
@Deprecated public void unstableSort(Comparator<? super Long> comparator)
Deprecated.Description copied from interface:LongList
Sorts this list using a sort not assured to be stable.- Specified by:
unstableSort
in interfaceLongList
-
listIterator
public LongListIterator listIterator()
Description copied from interface:LongList
Returns a type-specific list iterator on the list.- Specified by:
listIterator
in interfaceList<Long>
- Specified by:
listIterator
in interfaceLongList
- See Also:
List.listIterator()
-
iterator
public LongListIterator iterator()
Description copied from interface:LongCollection
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
.- Specified by:
iterator
in interfaceCollection<Long>
- Specified by:
iterator
in interfaceIterable<Long>
- Specified by:
iterator
in interfaceList<Long>
- Specified by:
iterator
in interfaceLongCollection
- Specified by:
iterator
in interfaceLongIterable
- Specified by:
iterator
in interfaceLongList
- Overrides:
iterator
in classLongCollections.EmptyCollection
- Returns:
- a type-specific iterator on the elements of this collection.
- See Also:
Iterable.iterator()
-
listIterator
public LongListIterator listIterator(int i)
Description copied from interface:LongList
Returns a type-specific list iterator on the list starting at a given index.- Specified by:
listIterator
in interfaceList<Long>
- Specified by:
listIterator
in interfaceLongList
- See Also:
List.listIterator(int)
-
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)
.
-
getElements
public void getElements(int from, long[] a, int offset, int length)
Description copied from interface:LongList
Copies (hopefully quickly) elements of this type-specific list into the given array.- Specified by:
getElements
in interfaceLongList
- Parameters:
from
- the start index (inclusive).a
- the destination array.offset
- the offset into the destination array where to store the first element copied.length
- the number of elements to be copied.
-
removeElements
public void removeElements(int from, int to)
Description copied from interface:LongList
Removes (hopefully quickly) elements of this type-specific list.- Specified by:
removeElements
in interfaceLongList
- Parameters:
from
- the start index (inclusive).to
- the end index (exclusive).
-
addElements
public void addElements(int index, long[] a, int offset, int length)
Description copied from interface:LongList
Add (hopefully quickly) elements to this type-specific list.- Specified by:
addElements
in interfaceLongList
- 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.
-
addElements
public void addElements(int index, long[] a)
Description copied from interface:LongList
Add (hopefully quickly) elements to this type-specific list.- Specified by:
addElements
in interfaceLongList
- Parameters:
index
- the index at which to add elements.a
- the array containing the elements.
-
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.
-
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.
-
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.
-
size
public void size(int s)
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
.
-
compareTo
public int compareTo(List<? extends Long> o)
- Specified by:
compareTo
in interfaceComparable<List<? extends Long>>
-
clone
public Object clone()
-
hashCode
public int hashCode()
- Specified by:
hashCode
in interfaceCollection<Long>
- Specified by:
hashCode
in interfaceList<Long>
- Overrides:
hashCode
in classLongCollections.EmptyCollection
-
equals
public boolean equals(Object o)
- Specified by:
equals
in interfaceCollection<Long>
- Specified by:
equals
in interfaceList<Long>
- Overrides:
equals
in classLongCollections.EmptyCollection
-
toString
public String toString()
- Overrides:
toString
in classAbstractLongCollection
-
-