AbstractChar2ByteFunction (fastutil 8.4.4)

java.lang.Object
- it.unimi.dsi.fastutil.chars.AbstractChar2ByteFunction

All Implemented Interfaces:

Char2ByteFunction, Function<Character,Byte>, Serializable, Function<Character,Byte>, IntUnaryOperator

Direct Known Subclasses:

AbstractChar2ByteMap, Char2ByteFunctions.EmptyFunction, Char2ByteFunctions.Singleton, Char2ByteFunctions.UnmodifiableFunction
```
public abstract class AbstractChar2ByteFunction
extends Object
implements Char2ByteFunction, 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

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`byte`	`defaultReturnValue()`	Gets the default return value.
`void`	`defaultReturnValue(byte rv)`	Sets the default return value (optional operation).

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.chars.Char2ByteFunction
andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsInt, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, containsKey, containsKey, get, get, put, put, remove, remove

Methods inherited from interface it.unimi.dsi.fastutil.Function
apply, clear, size

Methods inherited from interface java.util.function.Function
andThen, compose

Methods inherited from interface java.util.function.IntUnaryOperator
andThen, compose

- Method Detail
  - defaultReturnValue
```
public void defaultReturnValue(byte rv)
```
    Description copied from interface: Char2ByteFunction
    
    Sets the default return value (optional operation). This value must be returned by type-specific versions of get(), put() and remove() to denote that the map does not contain the specified key. It must be 0/false/null by default.
    
    Specified by:
    
    defaultReturnValue in interface Char2ByteFunction
    
    Parameters:
    
    rv - the new default return value.
    
    See Also:
    
    Char2ByteFunction.defaultReturnValue()
  - defaultReturnValue
```
public byte defaultReturnValue()
```
    Description copied from interface: Char2ByteFunction
    
    Gets the default return value.
    This default implementation just return the default null value of the type (null for objects, 0 for scalars, false for Booleans).
    
    Specified by:
    
    defaultReturnValue in interface Char2ByteFunction
    
    Returns:
    
    the current default return value.