Package it.unimi.dsi.fastutil.objects

Class Reference2LongFunctions.EmptyFunction<K>

java.lang.Object
it.unimi.dsi.fastutil.objects.AbstractReference2LongFunction<K>
it.unimi.dsi.fastutil.objects.Reference2LongFunctions.EmptyFunction<K>
All Implemented Interfaces:
it.unimi.dsi.fastutil.Function<K,​java.lang.Long>, it.unimi.dsi.fastutil.objects.Reference2LongFunction<K>, java.io.Serializable, java.lang.Cloneable, java.util.function.Function<K,​java.lang.Long>, java.util.function.ToLongFunction<K>
Direct Known Subclasses:
Reference2LongMaps.EmptyMap
Enclosing class:
Reference2LongFunctions
public static class Reference2LongFunctions.EmptyFunction<K>
extends AbstractReference2LongFunction<K>
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)  
    long defaultReturnValue()  
    void defaultReturnValue​(long defRetValue)  
    boolean equals​(java.lang.Object o)  
    long getLong​(java.lang.Object k)  
    long getOrDefault​(java.lang.Object k, long 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

    compose

    Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2LongFunction

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

  • Method Details

    • getLong

      public long getLong​(java.lang.Object k)
      Specified by:
      getLong in interface it.unimi.dsi.fastutil.objects.Reference2LongFunction<K>

    • getOrDefault

      public long getOrDefault​(java.lang.Object k, long defaultValue)
      Specified by:
      getOrDefault in interface it.unimi.dsi.fastutil.objects.Reference2LongFunction<K>

    • containsKey

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

    • defaultReturnValue

      public long defaultReturnValue()
      Specified by:
      defaultReturnValue in interface it.unimi.dsi.fastutil.objects.Reference2LongFunction<K>
      Overrides:
      defaultReturnValue in class AbstractReference2LongFunction<K>

    • defaultReturnValue

      public void defaultReturnValue​(long defRetValue)
      Specified by:
      defaultReturnValue in interface it.unimi.dsi.fastutil.objects.Reference2LongFunction<K>
      Overrides:
      defaultReturnValue in class AbstractReference2LongFunction<K>

    • size

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

    • clear

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

    • 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