Class AbstractDouble2DoubleFunction

java.lang.Object
it.unimi.dsi.fastutil.doubles.AbstractDouble2DoubleFunction
All Implemented Interfaces:
Double2DoubleFunction, Function<Double,​Double>, Serializable, DoubleUnaryOperator, Function<Double,​Double>
Direct Known Subclasses:
AbstractDouble2DoubleMap, Double2DoubleFunctions.EmptyFunction, Double2DoubleFunctions.Singleton, Double2DoubleFunctions.UnmodifiableFunction

public abstract class AbstractDouble2DoubleFunction
extends Object
implements Double2DoubleFunction, 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