LSSolution (LocalSolver 5.5 API)

java.lang.Object
- localsolver.LSSolution

```
public class LSSolution
extends java.lang.Object
```
Solution to the optimization model. A solution carries the values of all expressions in the model. It is used to retrieve the values of all expressions (getting the solution), or to set the values of some decisions (setting the solution).

See Also:
LSSolutionStatus

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`clear()` Clear the solution and set all decisions to zero.
`boolean`	`equals(java.lang.Object obj)`
`LSCollection`	`getCollectionValue(LSExpression expr)` Returns the value of the given expression in this solution.
`double`	`getDoubleValue(LSExpression expr)` Returns the value of the given expression in this solution.
`long`	`getIntValue(LSExpression expr)` Returns the value of the given expression in this solution.
`LocalSolver`	`getLocalSolver()`
`LSSolutionStatus`	`getStatus()` Returns the status of the solution.
`long`	`getValue(LSExpression expr)` Returns the value of the given expression in this solution.
`int`	`hashCode()`
`boolean`	`isViolated(LSExpression expr)` Returns true if the given expression is violated in this solution.
`void`	`setDoubleValue(LSExpression expr, double value)` Sets the value of the given expression in this solution.
`void`	`setIntValue(LSExpression expr, long value)` Sets the value of the given expression in this solution.
`void`	`setValue(LSExpression expr, double value)` Sets the value of the given expression in this solution.
`void`	`setValue(LSExpression expr, long value)` Sets the value of the given expression in this solution.

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

- Method Detail
  - getLocalSolver
```
public LocalSolver getLocalSolver()
```
  - setValue
```
public void setValue(LSExpression expr,
            long value)
```
    Sets the value of the given expression in this solution. Only decisions can be set. Only allowed in state LSState.Paused or LSState.Stopped. Only allowed if this expression is an integer or a boolean. If the solver was not launched, this value will be used as an initial value for the decision. This method has the same behavior as setIntValue(localsolver.LSExpression, long).
    
    Parameters:
    expr - Decision.
    value - Value assigned to the decision in this solution.
    See Also:
    LSExpression.isDecision(), LSExpression.isInt(), LSExpression.isBool()
  - setValue
```
public void setValue(LSExpression expr,
            double value)
```
    Sets the value of the given expression in this solution. Only decisions can be set. Only allowed in state LSState.Paused or LSState.Stopped. Only allowed if this expression is a double. If the solver was not launched, this value will be used as an initial value for the decision. This method has the same behavior as setDoubleValue(localsolver.LSExpression, double).
    
    Parameters:
    expr - Decision.
    value - Value assigned to the decision in this solution.
    See Also:
    LSExpression.isDecision(), LSExpression.isDouble()
  - setIntValue
```
public void setIntValue(LSExpression expr,
               long value)
```
    Sets the value of the given expression in this solution. Only decisions can be set. Only allowed in state LSState.Paused or LSState.Stopped. Only allowed if this expression is an integer or a boolean. If the solver was not launched, this value will be used as an initial value for the decision.
    
    Parameters:
    expr - Decision.
    value - Value assigned to the decision in this solution.
    Since:
    
    3.0
    
    See Also:
    LSExpression.isDecision(), LSExpression.isInt()
  - setDoubleValue
```
public void setDoubleValue(LSExpression expr,
                  double value)
```
    Sets the value of the given expression in this solution. Only decisions can be set. Only allowed in state LSState.Paused or LSState.Stopped. If the solver was not launched, this value will be used as an initial value for the decision. Only allowed if this expression is a double.
    
    Parameters:
    expr - Decision.
    value - Value assigned to the decision in this solution.
    Since:
    
    3.0
    
    See Also:
    LSExpression.isDecision(), LSExpression.isDouble()
  - getValue
```
public long getValue(LSExpression expr)
```
    Returns the value of the given expression in this solution. Only allowed in states LSState.Paused or LSState.Stopped. Only allowed if this expression is an integer or a boolean.
    
    Parameters:
    expr - Expression.
    
    Returns:
    Value of the expression in this solution.
    See Also:
    LSExpression.isInt(), LSExpression.isBool()
  - getDoubleValue
```
public double getDoubleValue(LSExpression expr)
```
    Returns the value of the given expression in this solution. Only allowed in states LSState.Paused or LSState.Stopped. Only allowed if this expression is a double.
    
    Parameters:
    expr - Expression.
    
    Returns:
    Value of the expression in this solution.
    Since:
    
    3.0
    
    See Also:
    LSExpression.isDouble()
  - getIntValue
```
public long getIntValue(LSExpression expr)
```
    Returns the value of the given expression in this solution. Only allowed in states LSState.Paused or LSState.Stopped. Only allowed if this expression is an integer or a boolean.
    
    Parameters:
    expr - Expression.
    
    Returns:
    Value of the expression in this solution.
    Since:
    
    3.0
    
    See Also:
    LSExpression.isInt(), LSExpression.isBool()
  - getCollectionValue
```
public LSCollection getCollectionValue(LSExpression expr)
```
    Returns the value of the given expression in this solution. Only allowed in states LSState.Paused or LSState.Stopped. Only allowed if this expression is an collection (list).
    
    Parameters:
    expr - Expression.
    
    Returns:
    Value of the expression in this solution.
    Since:
    
    5.5
    
    See Also:
    LSExpression.isCollection()
  - isViolated
```
public boolean isViolated(LSExpression expr)
```
    Returns true if the given expression is violated in this solution. An expression can be violated in 3 cases: 1. it is a constraint and its value is 0 2. it is a a double and its value is NaN (NotANumber) 3. it is an integer or boolean with no valid value (arithmetic or out of bounds exception). Only allowed in states LSState.Paused or LSState.Stopped.
    
    Parameters:
    expr - Expression.
    
    Returns:
    True if this expression is violated in this solution.
    Since:
    
    5.5
  - getStatus
```
public LSSolutionStatus getStatus()
```
    Returns the status of the solution. Only allowed in states LSState.Paused or LSState.Stopped.
    
    Returns:
    Status of the solution.
    See Also:
    LSSolutionStatus
  - clear
```
public void clear()
```
    Clear the solution and set all decisions to zero. Only allowed in state LSState.Stopped.
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Overrides:
    
    equals in class java.lang.Object

Class LSSolution

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getLocalSolver

setValue

setValue

setIntValue

setDoubleValue

getValue

getDoubleValue

getIntValue

getCollectionValue

isViolated

getStatus

clear

hashCode

equals