java.lang.Object

com.cedarsoftware.io.util.EmptyNavigableMap<K,V>

Type Parameters:: K - the type of keys maintained by this map; V - the type of mapped values

All Implemented Interfaces:: Map<K,V>, NavigableMap<K,V>, SortedMap<K,V>

public class EmptyNavigableMap<K,V> extends Object implements NavigableMap<K,V>

This class provides an immutable, empty implementation of the NavigableMap interface. It is designed to be a singleton as there is no internal state that varies between instances.

Author:: John DeRegnaucourt
Copyright (c) Cedar Software LLC

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

License

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map
Map.Entry<K,V>
Constructor Summary

Constructors

Constructor

Description

EmptyNavigableMap()
Method Summary

Modifier and Type

Method

Description

Map.Entry<K,V>

ceilingEntry(K key)

K

ceilingKey(K key)

void

clear()

Comparator<? super K>

comparator()

boolean

containsKey(Object key)

boolean

containsValue(Object value)

NavigableSet<K>

descendingKeySet()

NavigableMap<K,V>

descendingMap()

Set<Map.Entry<K,V>>

entrySet()

boolean

equals(Object o)

Map.Entry<K,V>

firstEntry()

K

firstKey()

Map.Entry<K,V>

floorEntry(K key)

K

floorKey(K key)

V

get(Object key)

int

hashCode()

SortedMap<K,V>

headMap(K toKey)

NavigableMap<K,V>

headMap(K toKey, boolean inclusive)

Map.Entry<K,V>

higherEntry(K key)

K

higherKey(K key)

boolean

isEmpty()

Set<K>

keySet()

Map.Entry<K,V>

lastEntry()

K

lastKey()

Map.Entry<K,V>

lowerEntry(K key)

K

lowerKey(K key)

NavigableSet<K>

navigableKeySet()

Map.Entry<K,V>

pollFirstEntry()

Map.Entry<K,V>

pollLastEntry()

V

put(K key, V value)

void

putAll(Map<? extends K,? extends V> m)

V

remove(Object key)

int

size()

NavigableMap<K,V>

subMap(K fromKey, boolean fromInclusive, K toKey, boolean toInclusive)

SortedMap<K,V>

subMap(K fromKey, K toKey)

SortedMap<K,V>

tailMap(K fromKey)

NavigableMap<K,V>

tailMap(K fromKey, boolean inclusive)

Collection<V>

values()

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

Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Details
- EmptyNavigableMap
  
  public EmptyNavigableMap()
Method Details
- comparator
  
  public Comparator<? super K> comparator()
  
  Specified by:
  
  comparator in interface SortedMap<K,V>
- firstKey
  
  public K firstKey()
  
  Specified by:
  
  firstKey in interface SortedMap<K,V>
- lastKey
  
  public K lastKey()
  
  Specified by:
  
  lastKey in interface SortedMap<K,V>
- lowerEntry
  
  public Map.Entry<K,V> lowerEntry(K key)
  
  Specified by:
  
  lowerEntry in interface NavigableMap<K,V>
- lowerKey
  
  public K lowerKey(K key)
  
  Specified by:
  
  lowerKey in interface NavigableMap<K,V>
- floorEntry
  
  public Map.Entry<K,V> floorEntry(K key)
  
  Specified by:
  
  floorEntry in interface NavigableMap<K,V>
- floorKey
  
  public K floorKey(K key)
  
  Specified by:
  
  floorKey in interface NavigableMap<K,V>
- ceilingEntry
  
  public Map.Entry<K,V> ceilingEntry(K key)
  
  Specified by:
  
  ceilingEntry in interface NavigableMap<K,V>
- ceilingKey
  
  public K ceilingKey(K key)
  
  Specified by:
  
  ceilingKey in interface NavigableMap<K,V>
- higherEntry
  
  public Map.Entry<K,V> higherEntry(K key)
  
  Specified by:
  
  higherEntry in interface NavigableMap<K,V>
- higherKey
  
  public K higherKey(K key)
  
  Specified by:
  
  higherKey in interface NavigableMap<K,V>
- firstEntry
  
  public Map.Entry<K,V> firstEntry()
  
  Specified by:
  
  firstEntry in interface NavigableMap<K,V>
- lastEntry
  
  public Map.Entry<K,V> lastEntry()
  
  Specified by:
  
  lastEntry in interface NavigableMap<K,V>
- pollFirstEntry
  
  public Map.Entry<K,V> pollFirstEntry()
  
  Specified by:
  
  pollFirstEntry in interface NavigableMap<K,V>
- pollLastEntry
  
  public Map.Entry<K,V> pollLastEntry()
  
  Specified by:
  
  pollLastEntry in interface NavigableMap<K,V>
- descendingMap
  
  public NavigableMap<K,V> descendingMap()
  
  Specified by:
  
  descendingMap in interface NavigableMap<K,V>
- navigableKeySet
  
  public NavigableSet<K> navigableKeySet()
  
  Specified by:
  
  navigableKeySet in interface NavigableMap<K,V>
- descendingKeySet
  
  public NavigableSet<K> descendingKeySet()
  
  Specified by:
  
  descendingKeySet in interface NavigableMap<K,V>
- subMap
  
  public NavigableMap<K,V> subMap(K fromKey, boolean fromInclusive, K toKey, boolean toInclusive)
  
  Specified by:
  
  subMap in interface NavigableMap<K,V>
- headMap
  
  public NavigableMap<K,V> headMap(K toKey, boolean inclusive)
  
  Specified by:
  
  headMap in interface NavigableMap<K,V>
- tailMap
  
  public NavigableMap<K,V> tailMap(K fromKey, boolean inclusive)
  
  Specified by:
  
  tailMap in interface NavigableMap<K,V>
- subMap
  
  public SortedMap<K,V> subMap(K fromKey, K toKey)
  
  Specified by:
  
  subMap in interface NavigableMap<K,V>
  
  Specified by:
  
  subMap in interface SortedMap<K,V>
- headMap
  
  public SortedMap<K,V> headMap(K toKey)
  
  Specified by:
  
  headMap in interface NavigableMap<K,V>
  
  Specified by:
  
  headMap in interface SortedMap<K,V>
- tailMap
  
  public SortedMap<K,V> tailMap(K fromKey)
  
  Specified by:
  
  tailMap in interface NavigableMap<K,V>
  
  Specified by:
  
  tailMap in interface SortedMap<K,V>
- size
  
  public int size()
  
  Specified by:
  
  size in interface Map<K,V>
- isEmpty
  
  public boolean isEmpty()
  
  Specified by:
  
  isEmpty in interface Map<K,V>
- containsKey
  
  public boolean containsKey(Object key)
  
  Specified by:
  
  containsKey in interface Map<K,V>
- containsValue
  
  public boolean containsValue(Object value)
  
  Specified by:
  
  containsValue in interface Map<K,V>
- get
  
  public V get(Object key)
  
  Specified by:
  
  get in interface Map<K,V>
- put
  
  public V put(K key, V value)
  
  Specified by:
  
  put in interface Map<K,V>
- remove
  
  public V remove(Object key)
  
  Specified by:
  
  remove in interface Map<K,V>
- putAll
  
  public void putAll(Map<? extends K,? extends V> m)
  
  Specified by:
  
  putAll in interface Map<K,V>
- clear
  
  public void clear()
  
  Specified by:
  
  clear in interface Map<K,V>
- keySet
  
  public Set<K> keySet()
  
  Specified by:
  
  keySet in interface Map<K,V>
  
  Specified by:
  
  keySet in interface SortedMap<K,V>
- values
  
  public Collection<V> values()
  
  Specified by:
  
  values in interface Map<K,V>
  
  Specified by:
  
  values in interface SortedMap<K,V>
- entrySet
  
  public Set<Map.Entry<K,V>> entrySet()
  
  Specified by:
  
  entrySet in interface Map<K,V>
  
  Specified by:
  
  entrySet in interface SortedMap<K,V>
- equals
  
  public boolean equals(Object o)
  
  Specified by:
  
  equals in interface Map<K,V>
  
  Overrides:
  
  equals in class Object
- hashCode
  
  public int hashCode()
  
  Specified by:
  
  hashCode in interface Map<K,V>
  
  Overrides:
  
  hashCode in class Object

Class EmptyNavigableMap<K,V>

Nested Class Summary

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

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Map

Constructor Details

EmptyNavigableMap

Method Details

comparator

firstKey

lastKey

lowerEntry

lowerKey

floorEntry

floorKey

ceilingEntry

ceilingKey

higherEntry

higherKey

firstEntry

lastEntry

pollFirstEntry

pollLastEntry

descendingMap

navigableKeySet

descendingKeySet

subMap

headMap

tailMap

subMap

headMap

tailMap

size

isEmpty

containsKey

containsValue

get

put

remove

putAll

clear

keySet

values

entrySet

equals

hashCode