T
- the type to set and getMutableBoolean
, MutableByte
, MutableDouble
, MutableFloat
, MutableInt
, MutableLong
, MutableObject
, MutableShort
public interface Mutable<T>
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.
Modifier and Type | Method | Description |
---|---|---|
T |
getValue() |
Gets the value of this mutable.
|
void |
setValue(T value) |
Sets the value of this mutable.
|
T getValue()
void setValue(T value)
value
- the value to storejava.lang.NullPointerException
- if the object is null and null is invalidjava.lang.ClassCastException
- if the type is invalidCopyright © 2001-2017 - Apache Software Foundation