Package it.unimi.dsi.fastutil.objects

Class Reference2ObjectFunctions.EmptyFunction<K,​V>

java.lang.Object
it.unimi.dsi.fastutil.objects.AbstractReference2ObjectFunction<K,​V>
it.unimi.dsi.fastutil.objects.Reference2ObjectFunctions.EmptyFunction<K,​V>
All Implemented Interfaces:
it.unimi.dsi.fastutil.Function<K,​V>, it.unimi.dsi.fastutil.objects.Reference2ObjectFunction<K,​V>, java.io.Serializable, java.lang.Cloneable, java.util.function.Function<K,​V>
Direct Known Subclasses:
Reference2ObjectMaps.EmptyMap
Enclosing class:
Reference2ObjectFunctions
public static class Reference2ObjectFunctions.EmptyFunction<K,​V>
extends AbstractReference2ObjectFunction<K,​V>
implements java.io.Serializable, java.lang.Cloneable
An immutable class representing an empty type-specific function.

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

See Also:
Serialized Form

  • Method Summary

    Modifier and Type Method Description
    void clear()  
    java.lang.Object clone()  
    boolean containsKey​(java.lang.Object k)  
    V defaultReturnValue()  
    void defaultReturnValue​(V defRetValue)  
    boolean equals​(java.lang.Object o)  
    V get​(java.lang.Object k)  
    V getOrDefault​(java.lang.Object k, V defaultValue)  
    int hashCode()  
    int size()  
    java.lang.String toString()  

    Methods inherited from class java.lang.Object

    getClass, notify, notifyAll, wait, wait, wait

    Methods inherited from interface it.unimi.dsi.fastutil.Function

    apply

    Methods inherited from interface java.util.function.Function

    andThen, compose

    Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2ObjectFunction

    andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, put, remove

  • Method Details

    • get

      public V get​(java.lang.Object k)
      Specified by:
      get in interface it.unimi.dsi.fastutil.Function<K,​V>
      Specified by:
      get in interface it.unimi.dsi.fastutil.objects.Reference2ObjectFunction<K,​V>

    • getOrDefault

      public V getOrDefault​(java.lang.Object k, V defaultValue)
      Specified by:
      getOrDefault in interface it.unimi.dsi.fastutil.Function<K,​V>
      Specified by:
      getOrDefault in interface it.unimi.dsi.fastutil.objects.Reference2ObjectFunction<K,​V>

    • containsKey

      public boolean containsKey​(java.lang.Object k)
      Specified by:
      containsKey in interface it.unimi.dsi.fastutil.Function<K,​V>

    • defaultReturnValue

      public V defaultReturnValue()
      Specified by:
      defaultReturnValue in interface it.unimi.dsi.fastutil.objects.Reference2ObjectFunction<K,​V>
      Overrides:
      defaultReturnValue in class AbstractReference2ObjectFunction<K,​V>

    • defaultReturnValue

      public void defaultReturnValue​(V defRetValue)
      Specified by:
      defaultReturnValue in interface it.unimi.dsi.fastutil.objects.Reference2ObjectFunction<K,​V>
      Overrides:
      defaultReturnValue in class AbstractReference2ObjectFunction<K,​V>

    • size

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

    • clear

      public void clear()
      Specified by:
      clear in interface it.unimi.dsi.fastutil.Function<K,​V>

    • clone

      public java.lang.Object clone()

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class java.lang.Object

    • equals

      public boolean equals​(java.lang.Object o)
      Overrides:
      equals in class java.lang.Object

    • toString

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