Class Byte2IntMaps.EmptyMap

  • All Implemented Interfaces:
    Byte2IntFunction, Byte2IntMap, Function<java.lang.Byte,​java.lang.Integer>, java.io.Serializable, java.lang.Cloneable, java.util.function.Function<java.lang.Byte,​java.lang.Integer>, java.util.function.IntUnaryOperator, java.util.Map<java.lang.Byte,​java.lang.Integer>
    Direct Known Subclasses:
    Byte2IntSortedMaps.EmptySortedMap
    Enclosing class:
    Byte2IntMaps

    public static class Byte2IntMaps.EmptyMap
    extends Byte2IntFunctions.EmptyFunction
    implements Byte2IntMap, 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 Detail

      • containsValue

        public boolean containsValue​(int v)
        Description copied from interface: Byte2IntMap
        Returns true if this map maps one or more keys to the specified value.
        Specified by:
        containsValue in interface Byte2IntMap
        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: Byte2IntMap
        Returns the value associated by this function to the specified key, or give the specified value if not present.

        This default implementation just delegates to the corresponding Map method.

        Specified by:
        getOrDefault in interface Byte2IntFunction
        Specified by:
        getOrDefault in interface Byte2IntMap
        Specified by:
        getOrDefault in interface Function<java.lang.Byte,​java.lang.Integer>
        Specified by:
        getOrDefault in interface java.util.Map<java.lang.Byte,​java.lang.Integer>
        Parameters:
        key - the key.
        defaultValue - the default value to return if not present.
        Returns:
        the corresponding value, or defaultValue if no value was present for the given 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 Byte2IntMap
        Specified by:
        containsValue in interface java.util.Map<java.lang.Byte,​java.lang.Integer>
      • putAll

        public void putAll​(java.util.Map<? extends java.lang.Byte,​? extends java.lang.Integer> m)
        Specified by:
        putAll in interface java.util.Map<java.lang.Byte,​java.lang.Integer>
      • byte2IntEntrySet

        public ObjectSet<Byte2IntMap.Entry> byte2IntEntrySet()
        Description copied from interface: Byte2IntMap
        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:
        byte2IntEntrySet in interface Byte2IntMap
        Returns:
        a type-specific set view of the mappings contained in this map.
        See Also:
        Map.entrySet()
      • keySet

        public ByteSet keySet()
        Description copied from interface: Byte2IntMap
        Specified by:
        keySet in interface Byte2IntMap
        Specified by:
        keySet in interface java.util.Map<java.lang.Byte,​java.lang.Integer>
        Returns:
        a set view of the keys contained in this map.
        See Also:
        Map.keySet()
      • values

        public IntCollection values()
        Description copied from interface: Byte2IntMap
        Specified by:
        values in interface Byte2IntMap
        Specified by:
        values in interface java.util.Map<java.lang.Byte,​java.lang.Integer>
        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.Byte,​? super java.lang.Integer> consumer)
        Specified by:
        forEach in interface Byte2IntMap
        Specified by:
        forEach in interface java.util.Map<java.lang.Byte,​java.lang.Integer>
      • isEmpty

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

        public boolean equals​(java.lang.Object o)
        Specified by:
        equals in interface java.util.Map<java.lang.Byte,​java.lang.Integer>
        Overrides:
        equals in class Byte2IntFunctions.EmptyFunction