Package it.unimi.dsi.fastutil.objects

Class Object2LongFunctions.PrimitiveFunction<K>

java.lang.Object
it.unimi.dsi.fastutil.objects.Object2LongFunctions.PrimitiveFunction<K>
All Implemented Interfaces:
Function<K,Long>, Object2LongFunction<K>, Function<K,Long>, ToLongFunction<K>
Enclosing class:
Object2LongFunctions
public static class Object2LongFunctions.PrimitiveFunction<K> extends Object implements Object2LongFunction<K>
An adapter for mapping generic total functions to partial primitive functions.

  • Method Details

    • containsKey

      public boolean containsKey(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,Long>
      Parameters:
      key - the key.
      Returns:
      true if this function associates a value to key.
      See Also:

    • getLong

      public long getLong(Object key)
      Description copied from interface: Object2LongFunction
      Returns the value to which the given key is mapped.
      Specified by:
      getLong in interface Object2LongFunction<K>
      Parameters:
      key - the key.
      Returns:
      the corresponding value, or the default return value if no value was present for the given key.
      See Also:

    • getOrDefault

      public long getOrDefault(Object key, long defaultValue)
      Description copied from interface: Object2LongFunction
      Returns the value associated by this function to the specified key, or give the specified value if not present.
      Specified by:
      getOrDefault in interface Object2LongFunction<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:

    • get

      @Deprecated public Long get(Object key)
      Deprecated.
      Description copied from interface: Object2LongFunction
      Returns the value associated by this function to the specified key.
      Specified by:
      get in interface Function<K,Long>
      Specified by:
      get in interface Object2LongFunction<K>
      Parameters:
      key - the key.
      Returns:
      the corresponding value, or null if no value was present for the given key.
      See Also:

    • getOrDefault

      @Deprecated public Long getOrDefault(Object key, Long defaultValue)
      Deprecated.
      Description copied from interface: Object2LongFunction
      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,Long>
      Specified by:
      getOrDefault in interface Object2LongFunction<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:

    • put

      @Deprecated public Long put(K key, Long value)
      Deprecated.
      Description copied from interface: Object2LongFunction
      Associates the specified value with the specified key in this function (optional operation).
      Specified by:
      put in interface Function<K,Long>
      Specified by:
      put in interface Object2LongFunction<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: