Class AbstractReference2DoubleFunction<K>

java.lang.Object
it.unimi.dsi.fastutil.objects.AbstractReference2DoubleFunction<K>
All Implemented Interfaces:
Function<K,​Double>, Reference2DoubleFunction<K>, Serializable, Function<K,​Double>, ToDoubleFunction<K>
Direct Known Subclasses:
AbstractReference2DoubleMap, Reference2DoubleFunctions.EmptyFunction, Reference2DoubleFunctions.Singleton, Reference2DoubleFunctions.UnmodifiableFunction

public abstract class AbstractReference2DoubleFunction<K>
extends Object
implements Reference2DoubleFunction<K>, Serializable
An abstract class providing basic methods for functions implementing a type-specific interface.

This class handles directly a default return value (including methods to access it). Instances of classes inheriting from this class have just to return defRetValue to denote lack of a key in type-specific methods. The value is serialized.

Implementing subclasses have just to provide type-specific get(), type-specific containsKey(), and size() methods.

See Also:
Serialized Form