MutableVar

All Superinterfaces:

Stateful

All Known Implementing Classes:

BoundsVar, CircuitVar, Diff2Var, DisjointCondVar, MutableDomain
```
public interface MutableVar
extends Stateful
```
Standard mutable variable definition

Version:

4.8

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`MutableVarValue`	`previous()`	It returns the earlier value of variable comparing to the current one.
`void`	`setCurrent(MutableVarValue o)`	It replace the current representation of the value with a new representation.
`java.lang.String`	`toString()`	It returns string representation of Mutable variable.
`void`	`update(MutableVarValue value)`	It updates the value of a mutable variable based on value given as a parameter, the stamp level of current value and stamp value of passed value.
`MutableVarValue`	`value()`	It returns current value of MutableVariable.

Methods inherited from interface org.jacop.api.Stateful
isStateful, removeLevel

- Method Detail
  - previous
```
MutableVarValue previous()
```
    It returns the earlier value of variable comparing to the current one.
    
    Returns:
    
    previous value of a mutable variable.
  - setCurrent
```
void setCurrent(MutableVarValue o)
```
    It replace the current representation of the value with a new representation. It ignores the store level.
    
    Parameters:
    
    o - value to which a mutable variable is set.
  - toString
```
java.lang.String toString()
```
    It returns string representation of Mutable variable.
    
    Overrides:
    
    toString in class java.lang.Object
  - update
```
void update(MutableVarValue value)
```
    It updates the value of a mutable variable based on value given as a parameter, the stamp level of current value and stamp value of passed value.
    
    Parameters:
    
    value - it specifies the new value of a mutable variable.
  - value
```
MutableVarValue value()
```
    It returns current value of MutableVariable.
    
    Returns:
    
    current value of the mutable variable.