Package org.optaplanner.core.api.solver

Enum SolverStatus

java.lang.Object

java.lang.Enum<SolverStatus>

org.optaplanner.core.api.solver.SolverStatus

All Implemented Interfaces:

Serializable, Comparable<SolverStatus>

public enum SolverStatus
extends Enum<SolverStatus>

The status of problem submitted to the SolverManager. Retrieve this status with SolverManager.getSolverStatus(Object) or SolverJob.getSolverStatus().

Enum Constant Summary

Enum Constants

Enum Constant	Description
NOT_SOLVING	The problem's solving has terminated or the problem was never submitted to the SolverManager.
SOLVING_ACTIVE	A solver thread started solving the problem, but hasn't finished yet.
SOLVING_SCHEDULED	No solver thread started solving this problem yet, but sooner or later a solver thread will solve it.

Method Summary

Modifier and Type	Method	Description
static SolverStatus	valueOf(String name)	Returns the enum constant of this type with the specified name.
static SolverStatus[]	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, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

SOLVING_SCHEDULED

public static final SolverStatus SOLVING_SCHEDULED

No solver thread started solving this problem yet, but sooner or later a solver thread will solve it.

For example, submitting 7 problems to a SolverManager with a SolverManagerConfig.getParallelSolverCount() of 4, puts 3 into this state for non-trivial amount of time.

Transitions into SOLVING_ACTIVE (or NOT_SOLVING if it is terminated early, before it starts).

SOLVING_ACTIVE

public static final SolverStatus SOLVING_ACTIVE

A solver thread started solving the problem, but hasn't finished yet.

If CPU resource are scarce and that solver thread is waiting for CPU time, the state doesn't change, it's still considered solving active.

Transitions into NOT_SOLVING when terminated.

NOT_SOLVING

public static final SolverStatus NOT_SOLVING

The problem's solving has terminated or the problem was never submitted to the SolverManager. SolverManager.getSolverStatus(Object) cannot tell the difference, but SolverJob.getSolverStatus() can.

Method Detail

values

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

Returns:

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

valueOf

public static SolverStatus 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