Class Reference2DoubleFunctions.PrimitiveFunction<K>

  • All Implemented Interfaces:
    Function<K,​java.lang.Double>, Reference2DoubleFunction<K>, java.util.function.Function<K,​java.lang.Double>, java.util.function.ToDoubleFunction<K>
    Enclosing class:
    Reference2DoubleFunctions

    public static class Reference2DoubleFunctions.PrimitiveFunction<K>
    extends java.lang.Object
    implements Reference2DoubleFunction<K>
    An adapter for mapping generic total functions to partial primitive functions.
    • Method Detail

      • containsKey

        public boolean containsKey​(java.lang.Object key)
        Description copied from interface: Function
        Returns true if this function contains a mapping for the specified key.

        Note that for some kind of functions (e.g., hashes) this method will always return true. This default implementation, in particular, always return true.

        Specified by:
        containsKey in interface Function<K,​java.lang.Double>
        Parameters:
        key - the key.
        Returns:
        true if this function associates a value to key.
        See Also:
        Map.containsKey(Object)
      • getOrDefault

        public double getOrDefault​(java.lang.Object key,
                                   double defaultValue)
        Description copied from interface: Reference2DoubleFunction
        Returns the value associated by this function to the specified key, or give the specified value if not present.
        Specified by:
        getOrDefault in interface Reference2DoubleFunction<K>
        Parameters:
        key - the key.
        defaultValue - the value to return if not present.
        Returns:
        the corresponding value, or defaultValue if no value was present for the given key.
        See Also:
        Function.getOrDefault(Object, Object)
      • get

        @Deprecated
        public java.lang.Double get​(java.lang.Object key)
        Deprecated.
        Description copied from interface: Reference2DoubleFunction
        Returns the value associated by this function to the specified key.
        Specified by:
        get in interface Function<K,​java.lang.Double>
        Specified by:
        get in interface Reference2DoubleFunction<K>
        Parameters:
        key - the key.
        Returns:
        the corresponding value, or null if no value was present for the given key.
        See Also:
        Map.get(Object)
      • getOrDefault

        @Deprecated
        public java.lang.Double getOrDefault​(java.lang.Object key,
                                             java.lang.Double defaultValue)
        Deprecated.
        Description copied from interface: Reference2DoubleFunction
        Returns the value associated by this function to the specified key, or give the specified value if not present.
        Specified by:
        getOrDefault in interface Function<K,​java.lang.Double>
        Specified by:
        getOrDefault in interface Reference2DoubleFunction<K>
        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)
      • put

        @Deprecated
        public java.lang.Double put​(K key,
                                    java.lang.Double value)
        Deprecated.
        Description copied from interface: Reference2DoubleFunction
        Associates the specified value with the specified key in this function (optional operation).
        Specified by:
        put in interface Function<K,​java.lang.Double>
        Specified by:
        put in interface Reference2DoubleFunction<K>
        Parameters:
        key - the key.
        value - the value.
        Returns:
        the old value, or null if no value was present for the given key.
        See Also:
        Map.put(Object,Object)