Class CharCollections.EmptyMap

java.lang.Object
io.netty.util.collection.CharCollections.EmptyMap
All Implemented Interfaces:
CharObjectMap<java.lang.Object>, java.util.Map<java.lang.Character, java.lang.Object>
Enclosing class:
CharCollections
private static final class CharCollections.EmptyMap extends java.lang.Object implements CharObjectMap<java.lang.Object>
An empty map. All operations that attempt to modify the map are unsupported.

  • Nested Class Summary

    Nested classes/interfaces inherited from interface CharObjectMap

    CharObjectMap.PrimitiveEntry<V>

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

    java.util.Map.Entry<K,V>

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    private
    EmptyMap()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    clear()
     
    boolean
    containsKey(char key)
    Indicates whether or not this map contains a value for the specified key.
    boolean
    containsKey(java.lang.Object key)
     
    boolean
    containsValue(java.lang.Object value)
     
    java.lang.Iterable<CharObjectMap.PrimitiveEntry<java.lang.Object>>
    entries()
    Gets an iterable to traverse over the primitive entries contained in this map.
    java.util.Set<java.util.Map.Entry<java.lang.Character, java.lang.Object>>
    entrySet()
     
    java.lang.Object
    get(char key)
    Gets the value in the map with the specified key.
    java.lang.Object
    get(java.lang.Object key)
     
    boolean
    isEmpty()
     
    java.util.Set<java.lang.Character>
    keySet()
     
    java.lang.Object
    put(char key, java.lang.Object value)
    Puts the given entry into the map.
    java.lang.Object
    put(java.lang.Character key, java.lang.Object value)
     
    void
    putAll(java.util.Map<? extends java.lang.Character, ?> m)
     
    java.lang.Object
    remove(char key)
    Removes the entry with the specified key.
    java.lang.Object
    remove(java.lang.Object key)
     
    int
    size()
     
    java.util.Collection<java.lang.Object>
    values()
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface java.util.Map

    compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

  • Constructor Details

    • EmptyMap

      private EmptyMap()

  • Method Details

    • get

      public java.lang.Object get(char key)
      Description copied from interface: CharObjectMap
      Gets the value in the map with the specified key.
      Specified by:
      get in interface CharObjectMap<java.lang.Object>
      Parameters:
      key - the key whose associated value is to be returned.
      Returns:
      the value or null if the key was not found in the map.

    • put

      public java.lang.Object put(char key, java.lang.Object value)
      Description copied from interface: CharObjectMap
      Puts the given entry into the map.
      Specified by:
      put in interface CharObjectMap<java.lang.Object>
      Parameters:
      key - the key of the entry.
      value - the value of the entry.
      Returns:
      the previous value for this key or null if there was no previous mapping.

    • remove

      public java.lang.Object remove(char key)
      Description copied from interface: CharObjectMap
      Removes the entry with the specified key.
      Specified by:
      remove in interface CharObjectMap<java.lang.Object>
      Parameters:
      key - the key for the entry to be removed from this map.
      Returns:
      the previous value for the key, or null if there was no mapping.

    • size

      public int size()
      Specified by:
      size in interface java.util.Map<java.lang.Character, java.lang.Object>

    • isEmpty

      public boolean isEmpty()
      Specified by:
      isEmpty in interface java.util.Map<java.lang.Character, java.lang.Object>

    • containsKey

      public boolean containsKey(java.lang.Object key)
      Specified by:
      containsKey in interface java.util.Map<java.lang.Character, java.lang.Object>

    • clear

      public void clear()
      Specified by:
      clear in interface java.util.Map<java.lang.Character, java.lang.Object>

    • keySet

      public java.util.Set<java.lang.Character> keySet()
      Specified by:
      keySet in interface java.util.Map<java.lang.Character, java.lang.Object>

    • containsKey

      public boolean containsKey(char key)
      Description copied from interface: CharObjectMap
      Indicates whether or not this map contains a value for the specified key.
      Specified by:
      containsKey in interface CharObjectMap<java.lang.Object>

    • containsValue

      public boolean containsValue(java.lang.Object value)
      Specified by:
      containsValue in interface java.util.Map<java.lang.Character, java.lang.Object>

    • entries

      public java.lang.Iterable<CharObjectMap.PrimitiveEntry<java.lang.Object>> entries()
      Description copied from interface: CharObjectMap
      Gets an iterable to traverse over the primitive entries contained in this map. As an optimization, the CharObjectMap.PrimitiveEntrys returned by the
      invalid reference 
      Iterator
      may change as the
      invalid reference 
      Iterator
      progresses. The caller should not rely on CharObjectMap.PrimitiveEntry key/value stability.
      Specified by:
      entries in interface CharObjectMap<java.lang.Object>

    • get

      public java.lang.Object get(java.lang.Object key)
      Specified by:
      get in interface java.util.Map<java.lang.Character, java.lang.Object>

    • put

      public java.lang.Object put(java.lang.Character key, java.lang.Object value)
      Specified by:
      put in interface java.util.Map<java.lang.Character, java.lang.Object>

    • remove

      public java.lang.Object remove(java.lang.Object key)
      Specified by:
      remove in interface java.util.Map<java.lang.Character, java.lang.Object>

    • putAll

      public void putAll(java.util.Map<? extends java.lang.Character, ?> m)
      Specified by:
      putAll in interface java.util.Map<java.lang.Character, java.lang.Object>

    • values

      public java.util.Collection<java.lang.Object> values()
      Specified by:
      values in interface java.util.Map<java.lang.Character, java.lang.Object>

    • entrySet

      public java.util.Set<java.util.Map.Entry<java.lang.Character, java.lang.Object>> entrySet()
      Specified by:
      entrySet in interface java.util.Map<java.lang.Character, java.lang.Object>