Package it.unimi.dsi.fastutil.objects
Class ObjectLists.EmptyList<K>
- java.lang.Object
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- java.util.AbstractCollection<K>
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- it.unimi.dsi.fastutil.objects.AbstractObjectCollection<K>
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- it.unimi.dsi.fastutil.objects.ObjectCollections.EmptyCollection<K>
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- it.unimi.dsi.fastutil.objects.ObjectLists.EmptyList<K>
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- All Implemented Interfaces:
ObjectCollection<K>
,ObjectIterable<K>
,ObjectList<K>
,java.io.Serializable
,java.lang.Cloneable
,java.lang.Comparable<java.util.List<? extends K>>
,java.lang.Iterable<K>
,java.util.Collection<K>
,java.util.List<K>
,java.util.RandomAccess
- Enclosing class:
- ObjectLists
public static class ObjectLists.EmptyList<K> extends ObjectCollections.EmptyCollection<K> implements ObjectList<K>, java.util.RandomAccess, java.io.Serializable, java.lang.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
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
add(int index, K k)
boolean
addAll(int i, java.util.Collection<? extends K> c)
void
addElements(int index, K[] a)
Add (hopefully quickly) elements to this type-specific list.void
addElements(int index, K[] a, int offset, int length)
Add (hopefully quickly) elements to this type-specific list.java.lang.Object
clone()
int
compareTo(java.util.List<? extends K> o)
boolean
equals(java.lang.Object o)
K
get(int i)
void
getElements(int from, java.lang.Object[] a, int offset, int length)
Copies (hopefully quickly) elements of this type-specific list into the given array.int
hashCode()
int
indexOf(java.lang.Object k)
ObjectListIterator<K>
iterator()
Returns a type-specific iterator on the elements of this collection.int
lastIndexOf(java.lang.Object k)
ObjectListIterator<K>
listIterator()
Returns a type-specific list iterator on the list.ObjectListIterator<K>
listIterator(int i)
Returns a type-specific list iterator on the list starting at a given index.K
remove(int i)
boolean
remove(java.lang.Object k)
void
removeElements(int from, int to)
Removes (hopefully quickly) elements of this type-specific list.void
replaceAll(java.util.function.UnaryOperator<K> operator)
K
set(int index, K k)
void
setElements(int index, K[] a)
Set (hopefully quickly) elements to match the array given.void
setElements(int index, K[] a, int offset, int length)
Set (hopefully quickly) elements to match the array given.void
setElements(K[] a)
Set (hopefully quickly) elements to match the array given.void
size(int s)
Sets the size of this list.void
sort(java.util.Comparator<? super K> comparator)
Sorts this list using a sort assured to be stable.ObjectList<K>
subList(int from, int to)
Returns a type-specific view of the portion of this list from the indexfrom
, inclusive, to the indexto
, exclusive.java.lang.String
toString()
void
unstableSort(java.util.Comparator<? super K> comparator)
Sorts this list using a sort not assured to be stable.-
Methods inherited from class it.unimi.dsi.fastutil.objects.ObjectCollections.EmptyCollection
addAll, clear, contains, containsAll, forEach, removeAll, removeIf, retainAll, size, spliterator, toArray, toArray
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Methods inherited from interface java.util.List
add, addAll, clear, contains, containsAll, isEmpty, removeAll, retainAll, size, toArray, toArray
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Methods inherited from interface it.unimi.dsi.fastutil.objects.ObjectList
addAll, addAll, spliterator
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Method Detail
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remove
public boolean remove(java.lang.Object k)
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indexOf
public int indexOf(java.lang.Object k)
- Specified by:
indexOf
in interfacejava.util.List<K>
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lastIndexOf
public int lastIndexOf(java.lang.Object k)
- Specified by:
lastIndexOf
in interfacejava.util.List<K>
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addAll
public boolean addAll(int i, java.util.Collection<? extends K> c)
- Specified by:
addAll
in interfacejava.util.List<K>
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replaceAll
public void replaceAll(java.util.function.UnaryOperator<K> operator)
- Specified by:
replaceAll
in interfacejava.util.List<K>
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sort
public void sort(java.util.Comparator<? super K> comparator)
Description copied from interface:ObjectList
Sorts this list using a sort assured to be stable.Pass
null
to sort using natural ordering.Unless a subclass specifies otherwise, the results of the method if the list is concurrently modified during the sort are unspecified.
- Specified by:
sort
in interfacejava.util.List<K>
- Specified by:
sort
in interfaceObjectList<K>
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unstableSort
public void unstableSort(java.util.Comparator<? super K> comparator)
Description copied from interface:ObjectList
Sorts this list using a sort not assured to be stable. This differs fromList.sort(java.util.Comparator)
in that the results are not assured to be stable, but may be a bit faster.Pass
null
to sort using natural ordering.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 interfaceObjectList<K>
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listIterator
public ObjectListIterator<K> listIterator()
Description copied from interface:ObjectList
Returns a type-specific list iterator on the list.- Specified by:
listIterator
in interfacejava.util.List<K>
- Specified by:
listIterator
in interfaceObjectList<K>
- See Also:
List.listIterator()
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iterator
public ObjectListIterator<K> iterator()
Description copied from interface:ObjectCollection
Returns a type-specific iterator on the elements of this collection.- Specified by:
iterator
in interfacejava.util.Collection<K>
- Specified by:
iterator
in interfacejava.lang.Iterable<K>
- Specified by:
iterator
in interfacejava.util.List<K>
- Specified by:
iterator
in interfaceObjectCollection<K>
- Specified by:
iterator
in interfaceObjectIterable<K>
- Specified by:
iterator
in interfaceObjectList<K>
- Overrides:
iterator
in classObjectCollections.EmptyCollection<K>
- Returns:
- a type-specific iterator on the elements of this collection.
- See Also:
Iterable.iterator()
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listIterator
public ObjectListIterator<K> listIterator(int i)
Description copied from interface:ObjectList
Returns a type-specific list iterator on the list starting at a given index.- Specified by:
listIterator
in interfacejava.util.List<K>
- Specified by:
listIterator
in interfaceObjectList<K>
- See Also:
List.listIterator(int)
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subList
public ObjectList<K> subList(int from, int to)
Description copied from interface:ObjectList
Returns a type-specific view of the portion of this list from the indexfrom
, inclusive, to the indexto
, exclusive.- Specified by:
subList
in interfacejava.util.List<K>
- Specified by:
subList
in interfaceObjectList<K>
- See Also:
List.subList(int,int)
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getElements
public void getElements(int from, java.lang.Object[] a, int offset, int length)
Description copied from interface:ObjectList
Copies (hopefully quickly) elements of this type-specific list into the given array.- Specified by:
getElements
in interfaceObjectList<K>
- 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.
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removeElements
public void removeElements(int from, int to)
Description copied from interface:ObjectList
Removes (hopefully quickly) elements of this type-specific list.- Specified by:
removeElements
in interfaceObjectList<K>
- Parameters:
from
- the start index (inclusive).to
- the end index (exclusive).
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addElements
public void addElements(int index, K[] a, int offset, int length)
Description copied from interface:ObjectList
Add (hopefully quickly) elements to this type-specific list.- Specified by:
addElements
in interfaceObjectList<K>
- 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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addElements
public void addElements(int index, K[] a)
Description copied from interface:ObjectList
Add (hopefully quickly) elements to this type-specific list.- Specified by:
addElements
in interfaceObjectList<K>
- Parameters:
index
- the index at which to add elements.a
- the array containing the elements.
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setElements
public void setElements(K[] a)
Description copied from interface:ObjectList
Set (hopefully quickly) elements to match the array given.- Specified by:
setElements
in interfaceObjectList<K>
- Parameters:
a
- the array containing the elements.
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setElements
public void setElements(int index, K[] a)
Description copied from interface:ObjectList
Set (hopefully quickly) elements to match the array given.- Specified by:
setElements
in interfaceObjectList<K>
- 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, K[] a, int offset, int length)
Description copied from interface:ObjectList
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 interfaceObjectList<K>
- 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 void size(int s)
Description copied from interface:ObjectList
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 interfaceObjectList<K>
- Parameters:
s
- the new size.
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compareTo
public int compareTo(java.util.List<? extends K> o)
- Specified by:
compareTo
in interfacejava.lang.Comparable<K>
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clone
public java.lang.Object clone()
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hashCode
public int hashCode()
- Specified by:
hashCode
in interfacejava.util.Collection<K>
- Specified by:
hashCode
in interfacejava.util.List<K>
- Overrides:
hashCode
in classObjectCollections.EmptyCollection<K>
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equals
public boolean equals(java.lang.Object o)
- Specified by:
equals
in interfacejava.util.Collection<K>
- Specified by:
equals
in interfacejava.util.List<K>
- Overrides:
equals
in classObjectCollections.EmptyCollection<K>
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toString
public java.lang.String toString()
- Overrides:
toString
in classAbstractObjectCollection<K>
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