Package org.ddolib.util.verbosity

Enum Class VerbosityLevel

java.lang.Object

java.lang.Enum<VerbosityLevel>

org.ddolib.util.verbosity.VerbosityLevel

All Implemented Interfaces:

Serializable, Comparable<VerbosityLevel>, Constable

public enum VerbosityLevel
extends Enum<VerbosityLevel>

Defines the different verbosity levels controlling the amount of information printed during the execution of a solver.

The verbosity level determines how much runtime feedback is displayed while solving an optimization problem. This can range from completely silent operation to detailed tracing of solver progress and subproblem development.

Typical usage involves selecting an appropriate verbosity level in the model configuration (see Model.verbosityLevel()), depending on whether the focus is on performance, debugging, or visualization of the search process.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
EXPORT	Same that LARGE but save the logs into logs.txt files.
LARGE	Displays detailed runtime information for debugging or analysis purposes.
NORMAL	Displays important progress updates.
SILENT	No output is produced.

Method Summary

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

SILENT

public static final VerbosityLevel SILENT

No output is produced.

This mode is intended for fully silent execution, where performance measurements or logs are not required.

NORMAL

public static final VerbosityLevel NORMAL

Displays important progress updates.

In this mode, the solver prints a message each time a new best objective value is found during the search.

LARGE

public static final VerbosityLevel LARGE

Displays detailed runtime information for debugging or analysis purposes.

In this mode, the solver outputs:

• A message whenever a new best objective is found.
• Periodic statistics about the search frontier (approximately every 0.5 seconds).
• Information about each developed subproblem as the search progresses.

This mode provides the highest level of detail and is useful for performance analysis and algorithmic tuning.

EXPORT

public static final VerbosityLevel EXPORT

Same that LARGE but save the logs into logs.txt files.

Method Details

values

public static VerbosityLevel[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static VerbosityLevel valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null