Package it.unimi.dsi.fastutil.shorts

Class Short2ShortFunctions.Singleton

java.lang.Object
it.unimi.dsi.fastutil.shorts.AbstractShort2ShortFunction
it.unimi.dsi.fastutil.shorts.Short2ShortFunctions.Singleton
All Implemented Interfaces:
it.unimi.dsi.fastutil.Function<java.lang.Short,​java.lang.Short>, Short2ShortFunction, java.io.Serializable, java.lang.Cloneable, java.util.function.Function<java.lang.Short,​java.lang.Short>, java.util.function.IntUnaryOperator
Direct Known Subclasses:
Short2ShortMaps.Singleton
Enclosing class:
Short2ShortFunctions
public static class Short2ShortFunctions.Singleton
extends AbstractShort2ShortFunction
implements java.io.Serializable, java.lang.Cloneable
An immutable class representing a type-specific singleton function. Note that the default return value is still settable.

Note that albeit the function is immutable, its default return value may be changed.

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

See Also:
Serialized Form

  • Method Details

    • containsKey

      public boolean containsKey​(short k)
      Description copied from interface: Short2ShortFunction
      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. In particular, this default implementation always returns true.

      Specified by:
      containsKey in interface Short2ShortFunction
      Parameters:
      k - the key.
      Returns:
      true if this function associates a value to key.
      See Also:
      Function.containsKey(Object)

    • get

      public short get​(short k)
      Description copied from interface: Short2ShortFunction
      Returns the value to which the given key is mapped.
      Specified by:
      get in interface Short2ShortFunction
      Parameters:
      k - the key.
      Returns:
      the corresponding value, or the default return value if no value was present for the given key.
      See Also:
      Function.get(Object)

    • getOrDefault

      public short getOrDefault​(short k, short defaultValue)
      Description copied from interface: Short2ShortFunction
      Returns the value associated by this function to the specified key, or give the specified value if not present.
      Specified by:
      getOrDefault in interface Short2ShortFunction
      Parameters:
      k - 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)

    • size

      public int size()
      Specified by:
      size in interface it.unimi.dsi.fastutil.Function<java.lang.Short,​java.lang.Short>

    • clone

      public java.lang.Object clone()