localsolver

Enum LSSolutionStatus

java.lang.Object

java.lang.Enum<LSSolutionStatus>

localsolver.LSSolutionStatus

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<LSSolutionStatus>

public enum LSSolutionStatus
extends java.lang.Enum<LSSolutionStatus>

Solution status: Optimal, Feasible, Infeasible or Inconsistent.

See Also:

LSSolution

Enum Constant Summary

Enum Constants

Enum Constant and Description
Feasible Solution is feasible but optimality was not proven.
Inconsistent Solution and model are inconsistent.
Infeasible Solution is infeasible (some constraints are violated).
Optimal Solution is optimal (all objective bounds are reached).

Method Summary

Modifier and Type	Method and Description
static LSSolutionStatus	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static LSSolutionStatus[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

Inconsistent

public static final LSSolutionStatus Inconsistent

Solution and model are inconsistent. The solver was able to prove that the model admits no feasible solution. Note that even a model without any constraint can be inconsistent, because some computations can yield undefined results. For instance, computing sqrt(x) with negative x yields an undefined value, which causes the solution to be invalid if it is used in an objective or a constraint (directly or indirectly).

Infeasible

public static final LSSolutionStatus Infeasible

Solution is infeasible (some constraints are violated).

Feasible

public static final LSSolutionStatus Feasible

Solution is feasible but optimality was not proven.

Optimal

public static final LSSolutionStatus Optimal

Solution is optimal (all objective bounds are reached).

Method Detail

values

public static LSSolutionStatus[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (LSSolutionStatus c : LSSolutionStatus.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static LSSolutionStatus valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null