Package it.unimi.dsi.fastutil.shorts

Class Short2IntMaps.EmptyMap

java.lang.Object
it.unimi.dsi.fastutil.shorts.AbstractShort2IntFunction
it.unimi.dsi.fastutil.shorts.Short2IntFunctions.EmptyFunction
it.unimi.dsi.fastutil.shorts.Short2IntMaps.EmptyMap
All Implemented Interfaces:
it.unimi.dsi.fastutil.Function<java.lang.Short,​java.lang.Integer>, it.unimi.dsi.fastutil.shorts.Short2IntFunction, Short2IntMap, java.io.Serializable, java.lang.Cloneable, java.util.function.Function<java.lang.Short,​java.lang.Integer>, java.util.function.IntUnaryOperator, java.util.Map<java.lang.Short,​java.lang.Integer>
Direct Known Subclasses:
Short2IntSortedMaps.EmptySortedMap
Enclosing class:
Short2IntMaps
public static class Short2IntMaps.EmptyMap
extends Short2IntFunctions.EmptyFunction
implements Short2IntMap, java.io.Serializable, java.lang.Cloneable
An immutable class representing an empty type-specific map.

This class may be useful to implement your own in case you subclass a type-specific map.

See Also:
Serialized Form

  • Method Details

    • containsValue

      public boolean containsValue​(int v)
      Description copied from interface: Short2IntMap
      Returns true if this map maps one or more keys to the specified value.
      Specified by:
      containsValue in interface Short2IntMap
      See Also:
      Map.containsValue(Object)

    • getOrDefault

      @Deprecated public java.lang.Integer getOrDefault​(java.lang.Object key, java.lang.Integer defaultValue)
      Deprecated.
      Description copied from interface: Short2IntMap

      This default implementation just delegates to the corresponding Map method.

      Specified by:
      getOrDefault in interface it.unimi.dsi.fastutil.Function<java.lang.Short,​java.lang.Integer>
      Specified by:
      getOrDefault in interface java.util.Map<java.lang.Short,​java.lang.Integer>
      Specified by:
      getOrDefault in interface it.unimi.dsi.fastutil.shorts.Short2IntFunction
      Specified by:
      getOrDefault in interface Short2IntMap

    • getOrDefault

      public int getOrDefault​(short key, int defaultValue)
      Description copied from interface: Short2IntMap
      Returns the value to which the specified key is mapped, or the defaultValue if this map contains no mapping for the key.
      Specified by:
      getOrDefault in interface it.unimi.dsi.fastutil.shorts.Short2IntFunction
      Specified by:
      getOrDefault in interface Short2IntMap
      Overrides:
      getOrDefault in class Short2IntFunctions.EmptyFunction
      Parameters:
      key - the key.
      defaultValue - the default mapping of the key.
      Returns:
      the value to which the specified key is mapped, or the defaultValue if this map contains no mapping for the key.
      See Also:
      Map.getOrDefault(Object, Object)

    • containsValue

      @Deprecated public boolean containsValue​(java.lang.Object ov)
      Deprecated.
      Please use the corresponding type-specific method instead.
      Specified by:
      containsValue in interface java.util.Map<java.lang.Short,​java.lang.Integer>
      Specified by:
      containsValue in interface Short2IntMap

    • putAll

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

    • short2IntEntrySet

      public it.unimi.dsi.fastutil.objects.ObjectSet<Short2IntMap.Entry> short2IntEntrySet()
      Description copied from interface: Short2IntMap
      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:
      short2IntEntrySet in interface Short2IntMap
      Returns:
      a type-specific set view of the mappings contained in this map.
      See Also:
      Map.entrySet()

    • keySet

      public ShortSet keySet()
      Description copied from interface: Short2IntMap
      Specified by:
      keySet in interface java.util.Map<java.lang.Short,​java.lang.Integer>
      Specified by:
      keySet in interface Short2IntMap
      Returns:
      a set view of the keys contained in this map.
      See Also:
      Map.keySet()

    • values

      public it.unimi.dsi.fastutil.ints.IntCollection values()
      Description copied from interface: Short2IntMap
      Specified by:
      values in interface java.util.Map<java.lang.Short,​java.lang.Integer>
      Specified by:
      values in interface Short2IntMap
      Returns:
      a set view of the values contained in this map.
      See Also:
      Map.values()

    • forEach

      public void forEach​(java.util.function.BiConsumer<? super java.lang.Short,​? super java.lang.Integer> consumer)
      Specified by:
      forEach in interface java.util.Map<java.lang.Short,​java.lang.Integer>
      Specified by:
      forEach in interface Short2IntMap

    • clone

      public java.lang.Object clone()
      Overrides:
      clone in class Short2IntFunctions.EmptyFunction

    • isEmpty

      public boolean isEmpty()
      Specified by:
      isEmpty in interface java.util.Map<java.lang.Short,​java.lang.Integer>

    • hashCode

      public int hashCode()
      Specified by:
      hashCode in interface java.util.Map<java.lang.Short,​java.lang.Integer>
      Overrides:
      hashCode in class Short2IntFunctions.EmptyFunction

    • equals

      public boolean equals​(java.lang.Object o)
      Specified by:
      equals in interface java.util.Map<java.lang.Short,​java.lang.Integer>
      Overrides:
      equals in class Short2IntFunctions.EmptyFunction

    • toString

      public java.lang.String toString()
      Overrides:
      toString in class Short2IntFunctions.EmptyFunction