java.lang.Object
- it.unimi.dsi.fastutil.longs.AbstractLong2ReferenceFunction<V>
- - it.unimi.dsi.fastutil.longs.Long2ReferenceFunctions.EmptyFunction<V>
  - - it.unimi.dsi.fastutil.longs.Long2ReferenceMaps.EmptyMap<V>
    - - it.unimi.dsi.fastutil.longs.Long2ReferenceSortedMaps.EmptySortedMap<V>

All Implemented Interfaces:

Function<Long,V>, Long2ReferenceFunction<V>, Long2ReferenceMap<V>, Long2ReferenceSortedMap<V>, Serializable, Cloneable, Function<Long,V>, LongFunction<V>, Map<Long,V>, SortedMap<Long,V>

Enclosing class:

Long2ReferenceSortedMaps
```
public static class Long2ReferenceSortedMaps.EmptySortedMap<V>
extends Long2ReferenceMaps.EmptyMap<V>
implements Long2ReferenceSortedMap<V>, Serializable, Cloneable
```
An immutable class representing an empty type-specific sorted map.
This class may be useful to implement your own in case you subclass a type-specific sorted map.

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.longs.Long2ReferenceMap
  Long2ReferenceMap.Entry<V>, Long2ReferenceMap.FastEntrySet<V>
- Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.longs.Long2ReferenceSortedMap
  Long2ReferenceSortedMap.FastSortedEntrySet<V>
- Nested classes/interfaces inherited from interface java.util.Map
  Map.Entry<K extends Object,V extends Object>

Method Summary

Modifier and Type	Method	Description
`LongComparator`	`comparator()`	Returns the comparator associated with this sorted set, or null if it uses its keys' natural ordering.
`ObjectSortedSet<Map.Entry<Long,V>>`	`entrySet()`	Deprecated. Please use the corresponding type-specific method instead.
`Long`	`firstKey()`	Deprecated. Please use the corresponding type-specific method instead.
`long`	`firstLongKey()`	Returns the first (lowest) key currently in this map.
`Long2ReferenceSortedMap<V>`	`headMap(long to)`	Returns a view of the portion of this sorted map whose keys are strictly less than `toKey`.
`Long2ReferenceSortedMap<V>`	`headMap(Long oto)`	Deprecated. Please use the corresponding type-specific method instead.
`LongSortedSet`	`keySet()`
`Long`	`lastKey()`	Deprecated. Please use the corresponding type-specific method instead.
`long`	`lastLongKey()`	Returns the last (highest) key currently in this map.
`ObjectSortedSet<Long2ReferenceMap.Entry<V>>`	`long2ReferenceEntrySet()`	Returns a type-specific set view of the mappings contained in this map.
`Long2ReferenceSortedMap<V>`	`subMap(long from, long to)`	Returns a view of the portion of this sorted map whose keys range from `fromKey`, inclusive, to `toKey`, exclusive.
`Long2ReferenceSortedMap<V>`	`subMap(Long ofrom, Long oto)`	Deprecated. Please use the corresponding type-specific method instead.
`Long2ReferenceSortedMap<V>`	`tailMap(long from)`	Returns a view of the portion of this sorted map whose keys are greater than or equal to `fromKey`.
`Long2ReferenceSortedMap<V>`	`tailMap(Long ofrom)`	Deprecated. Please use the corresponding type-specific method instead.

Methods inherited from class it.unimi.dsi.fastutil.longs.Long2ReferenceMaps.EmptyMap
clone, containsValue, equals, hashCode, isEmpty, putAll, toString, values

Methods inherited from class it.unimi.dsi.fastutil.longs.Long2ReferenceFunctions.EmptyFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, size

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.Function
apply

Methods inherited from interface java.util.function.Function
andThen, compose

Methods inherited from interface it.unimi.dsi.fastutil.longs.Long2ReferenceFunction
apply, get, put, remove

Methods inherited from interface it.unimi.dsi.fastutil.longs.Long2ReferenceMap
clear, compute, compute, computeIfAbsent, computeIfAbsent, computeIfAbsentPartial, computeIfPresent, computeIfPresent, containsKey, containsKey, defaultReturnValue, defaultReturnValue, get, getOrDefault, getOrDefault, merge, merge, put, putIfAbsent, putIfAbsent, remove, remove, remove, replace, replace, replace, replace, size

Methods inherited from interface it.unimi.dsi.fastutil.longs.Long2ReferenceSortedMap
values

Methods inherited from interface java.util.Map
clear, containsKey, containsValue, equals, forEach, get, hashCode, isEmpty, put, putAll, remove, replaceAll, size

- Method Detail
  - comparator
```
public LongComparator comparator()
```
    Description copied from interface: Long2ReferenceSortedMap
    
    Returns the comparator associated with this sorted set, or null if it uses its keys' natural ordering.
    Note that this specification strengthens the one given in SortedMap.comparator().
    
    Specified by:
    
    comparator in interface Long2ReferenceSortedMap<V>
    
    Specified by:
    
    comparator in interface SortedMap<Long,V>
    
    See Also:
    
    SortedMap.comparator()
  - long2ReferenceEntrySet
```
public ObjectSortedSet<Long2ReferenceMap.Entry<V>> long2ReferenceEntrySet()
```
    Description copied from interface: Long2ReferenceMap
    
    Returns a type-specific set view of the mappings contained in this map.
    This method is necessary because there is no inheritance along type parameters: it is thus impossible to strengthen Map.entrySet() so that it returns an ObjectSet of type-specific entries (the latter makes it possible to access keys and values with type-specific methods).
    
    Specified by:
    
    long2ReferenceEntrySet in interface Long2ReferenceMap<V>
    
    Specified by:
    
    long2ReferenceEntrySet in interface Long2ReferenceSortedMap<V>
    
    Overrides:
    
    long2ReferenceEntrySet in class Long2ReferenceMaps.EmptyMap<V>
    
    Returns:
    
    a type-specific set view of the mappings contained in this map.
    
    See Also:
    
    Map.entrySet()
  - entrySet
```
@Deprecated
public ObjectSortedSet<Map.Entry<Long,V>> entrySet()
```
    Deprecated.
    Please use the corresponding type-specific method instead.
    
    Returns a sorted-set view of the mappings contained in this map.
    Note that this specification strengthens the one given in the corresponding type-specific unsorted map.
    
    Specified by:
    
    entrySet in interface Long2ReferenceMap<V>
    
    Specified by:
    
    entrySet in interface Long2ReferenceSortedMap<V>
    
    Specified by:
    
    entrySet in interface Map<Long,V>
    
    Specified by:
    
    entrySet in interface SortedMap<Long,V>
    
    Returns:
    
    a sorted-set view of the mappings contained in this map.
    
    See Also:
    
    SortedMap.entrySet()
  - keySet
```
public LongSortedSet keySet()
```
    Description copied from interface: Long2ReferenceMap
    
    Note that this specification strengthens the one given in Map.keySet().
    
    Specified by:
    
    keySet in interface Long2ReferenceMap<V>
    
    Specified by:
    
    keySet in interface Long2ReferenceSortedMap<V>
    
    Specified by:
    
    keySet in interface Map<Long,V>
    
    Specified by:
    
    keySet in interface SortedMap<Long,V>
    
    Overrides:
    
    keySet in class Long2ReferenceMaps.EmptyMap<V>
    
    Returns:
    
    a set view of the keys contained in this map.
    
    See Also:
    
    Map.keySet()
  - subMap
```
public Long2ReferenceSortedMap<V> subMap(long from,
                                         long to)
```
    Description copied from interface: Long2ReferenceSortedMap
    
    Returns a view of the portion of this sorted map whose keys range from fromKey, inclusive, to toKey, exclusive.
    Note that this specification strengthens the one given in SortedMap.subMap(Object,Object).
    
    Specified by:
    
    subMap in interface Long2ReferenceSortedMap<V>
    
    See Also:
    
    SortedMap.subMap(Object,Object)
  - headMap
```
public Long2ReferenceSortedMap<V> headMap(long to)
```
    Description copied from interface: Long2ReferenceSortedMap
    
    Returns a view of the portion of this sorted map whose keys are strictly less than toKey.
    Note that this specification strengthens the one given in SortedMap.headMap(Object).
    
    Specified by:
    
    headMap in interface Long2ReferenceSortedMap<V>
    
    See Also:
    
    SortedMap.headMap(Object)
  - tailMap
```
public Long2ReferenceSortedMap<V> tailMap(long from)
```
    Description copied from interface: Long2ReferenceSortedMap
    
    Returns a view of the portion of this sorted map whose keys are greater than or equal to fromKey.
    Note that this specification strengthens the one given in SortedMap.tailMap(Object).
    
    Specified by:
    
    tailMap in interface Long2ReferenceSortedMap<V>
    
    See Also:
    
    SortedMap.tailMap(Object)
  - firstLongKey
```
public long firstLongKey()
```
    Description copied from interface: Long2ReferenceSortedMap
    
    Returns the first (lowest) key currently in this map.
    
    Specified by:
    
    firstLongKey in interface Long2ReferenceSortedMap<V>
    
    See Also:
    
    SortedMap.firstKey()
  - lastLongKey
```
public long lastLongKey()
```
    Description copied from interface: Long2ReferenceSortedMap
    
    Returns the last (highest) key currently in this map.
    
    Specified by:
    
    lastLongKey in interface Long2ReferenceSortedMap<V>
    
    See Also:
    
    SortedMap.lastKey()
  - headMap
```
@Deprecated
public Long2ReferenceSortedMap<V> headMap(Long oto)
```
    Deprecated.
    Please use the corresponding type-specific method instead.
    
    Note that this specification strengthens the one given in SortedMap.headMap(Object).
    
    Specified by:
    
    headMap in interface Long2ReferenceSortedMap<V>
    
    Specified by:
    
    headMap in interface SortedMap<Long,V>
  - tailMap
```
@Deprecated
public Long2ReferenceSortedMap<V> tailMap(Long ofrom)
```
    Deprecated.
    Please use the corresponding type-specific method instead.
    
    Note that this specification strengthens the one given in SortedMap.tailMap(Object).
    
    Specified by:
    
    tailMap in interface Long2ReferenceSortedMap<V>
    
    Specified by:
    
    tailMap in interface SortedMap<Long,V>
  - subMap
```
@Deprecated
public Long2ReferenceSortedMap<V> subMap(Long ofrom,
                                         Long oto)
```
    Deprecated.
    Please use the corresponding type-specific method instead.
    
    Note that this specification strengthens the one given in SortedMap.subMap(Object,Object).
    
    Specified by:
    
    subMap in interface Long2ReferenceSortedMap<V>
    
    Specified by:
    
    subMap in interface SortedMap<Long,V>
  - firstKey
```
@Deprecated
public Long firstKey()
```
    Deprecated.
    Please use the corresponding type-specific method instead.
    
    Specified by:
    
    firstKey in interface Long2ReferenceSortedMap<V>
    
    Specified by:
    
    firstKey in interface SortedMap<Long,V>
  - lastKey
```
@Deprecated
public Long lastKey()
```
    Deprecated.
    Please use the corresponding type-specific method instead.
    
    Specified by:
    
    lastKey in interface Long2ReferenceSortedMap<V>
    
    Specified by:
    
    lastKey in interface SortedMap<Long,V>

Class Long2ReferenceSortedMaps.EmptySortedMap<V>

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.longs.Long2ReferenceMap

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.longs.Long2ReferenceSortedMap

Nested classes/interfaces inherited from interface java.util.Map

Method Summary

Methods inherited from class it.unimi.dsi.fastutil.longs.Long2ReferenceMaps.EmptyMap

Methods inherited from class it.unimi.dsi.fastutil.longs.Long2ReferenceFunctions.EmptyFunction

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

Methods inherited from interface it.unimi.dsi.fastutil.longs.Long2ReferenceFunction

Methods inherited from interface it.unimi.dsi.fastutil.longs.Long2ReferenceMap

Methods inherited from interface it.unimi.dsi.fastutil.longs.Long2ReferenceSortedMap

Methods inherited from interface java.util.Map

Method Detail

comparator

long2ReferenceEntrySet

entrySet

keySet

subMap

headMap

tailMap

firstLongKey

lastLongKey

headMap

tailMap

subMap

firstKey

lastKey