Package org.ssclab.pl.milp

Enum SolutionType

java.lang.Object

java.lang.Enum<SolutionType>

org.ssclab.pl.milp.SolutionType

All Implemented Interfaces:

Serializable, Comparable<SolutionType>

public enum SolutionType
extends Enum<SolutionType>

This enumeration defines the different types of results that the two-phase method returns.

Version:

1.0

Author:

Stefano Scarioli

See Also:

SSC Software www.sscLab.org

Enum Constant Summary

Enum Constants

Enum Constant	Description
FEASIBLE	The problem has feasible solutions.
ILLIMITATUM	The problem has unlimited optimal solution.
MAX_ITERATIUM	The algorithm stopped because the maximum number of iterations was reached.
MAX_NUM_SIMPLEX	The branch and bound algorithm stopped because the maximum number of simplexes was reached.
OPTIMUM	The problem has an optimal solution.
VUOTUM	The problem has no feasible solutions.

Field Summary

Fields

Modifier and Type	Field	Description
static SolutionType	INFEASIBLE
static SolutionType	MAX_ITERATIONS
static SolutionType	OPTIMAL
static SolutionType	UNBOUNDED
static SolutionType	UNLIMITED

Method Summary

Modifier and Type	Method	Description
String	getValue()	Retrieves the value associated with the enumeration.
String	toString()	Returns a string representation of the enumeration value.
static SolutionType	valueOf(String name)	Returns the enum constant of this type with the specified name.
static SolutionType[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

OPTIMUM

public static final SolutionType OPTIMUM

The problem has an optimal solution.

ILLIMITATUM

public static final SolutionType ILLIMITATUM

The problem has unlimited optimal solution.

MAX_ITERATIUM

public static final SolutionType MAX_ITERATIUM

The algorithm stopped because the maximum number of iterations was reached.

MAX_NUM_SIMPLEX

public static final SolutionType MAX_NUM_SIMPLEX

The branch and bound algorithm stopped because the maximum number of simplexes was reached.

VUOTUM

public static final SolutionType VUOTUM

The problem has no feasible solutions. The set of feasible solutions is empty.

FEASIBLE

public static final SolutionType FEASIBLE

The problem has feasible solutions.

Field Detail

INFEASIBLE

public static final SolutionType INFEASIBLE

UNLIMITED

public static final SolutionType UNLIMITED

UNBOUNDED

public static final SolutionType UNBOUNDED

OPTIMAL

public static final SolutionType OPTIMAL

MAX_ITERATIONS

public static final SolutionType MAX_ITERATIONS

Method Detail

values

public static SolutionType[] 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 (SolutionType c : SolutionType.values())
    System.out.println(c);

Returns:

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

valueOf

public static SolutionType valueOf(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:

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

NullPointerException - if the argument is null

getValue

public String getValue()

Retrieves the value associated with the enumeration.

Returns:

The value associated with the enumeration.

toString

public String toString()

Returns a string representation of the enumeration value.

Overrides:

toString in class Enum<SolutionType>

Returns:

A string representation of the enumeration value.