IntDomainMiddle (org.choco-solver-choco-solver 4.10.2 API)

java.lang.Object
- org.chocosolver.solver.search.strategy.selectors.values.IntDomainMiddle

All Implemented Interfaces:

IntValueSelector
```
public class IntDomainMiddle
extends Object
implements IntValueSelector
```
Selects the value in the variable domain closest to the mean of its current bounds.
It computes the middle value of the domain. Then it checks if the mean is contained in the domain. If not, the closest value to the middle is chosen. It uses a policy to define whether the mean value should be floored or ceiled

BEWARE: should not be used with assignment decisions over bounded variables (because the decision negation would result in no inference)

Since:

2 juil. 2010

Author:

Charles Prud'homme, Jean-Guillaume Fages

Field Summary

Fields
Modifier and Type Field Description

static boolean FLOOR

Constructor Summary

Constructors
Constructor	Description
`IntDomainMiddle(boolean roundingPolicy)`	Selects the middle value
`IntDomainMiddle(ToDoubleFunction<IntVar> middle, boolean roudingPolicy)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

int selectValue(IntVar var)
Selects and returns the value to constrained chosen variable with.
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - FLOOR
```
public static final boolean FLOOR
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - IntDomainMiddle
```
public IntDomainMiddle(boolean roundingPolicy)
```
    Selects the middle value
    
    Parameters:
    
    roundingPolicy - should be either FLOOR or !FLOOR (ceil)
  - IntDomainMiddle
```
public IntDomainMiddle(ToDoubleFunction<IntVar> middle,
                       boolean roudingPolicy)
```
- Method Detail
  - selectValue
```
public int selectValue(IntVar var)
```
    Selects and returns the value to constrained chosen variable with. The chosen value must belong to the domain of variable.
    
    Specified by:
    
    selectValue in interface IntValueSelector
    
    Returns:
    
    the value, based on the domain of variable