Mutable (Apache Commons Lang 3.12.0 API)

Type Parameters:

T - the type to set and get

All Known Implementing Classes:

MutableBoolean, MutableByte, MutableDouble, MutableFloat, MutableInt, MutableLong, MutableObject, MutableShort
```
public interface Mutable<T>
```
Provides mutable access to a value.
Mutable is used as a generic interface to the implementations in this package.
A typical use case would be to enable a primitive or string to be passed to a method and allow that method to effectively change the value of the primitive/string. Another use case is to store a frequently changing primitive in a collection (for example a total in a map) without needing to create new Integer/Long wrapper objects.

Since:

2.1

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`T`	`getValue()`	Gets the value of this mutable.
`void`	`setValue(T value)`	Sets the value of this mutable.

- Method Detail
  - getValue
```
T getValue()
```
    Gets the value of this mutable.
    
    Returns:
    
    the stored value
  - setValue
```
void setValue(T value)
```
    Sets the value of this mutable.
    
    Parameters:
    
    value - the value to store
    
    Throws:
    
    java.lang.NullPointerException - if the object is null and null is invalid
    
    java.lang.ClassCastException - if the type is invalid