com.google.ortools.constraintsolver

Enum LocalSearchMetaheuristic.Value

java.lang.Object

java.lang.Enum<LocalSearchMetaheuristic.Value>

com.google.ortools.constraintsolver.LocalSearchMetaheuristic.Value

All Implemented Interfaces:

com.google.protobuf.Internal.EnumLite, com.google.protobuf.ProtocolMessageEnum, java.io.Serializable, java.lang.Comparable<LocalSearchMetaheuristic.Value>

Enclosing class:

LocalSearchMetaheuristic

public static enum LocalSearchMetaheuristic.Value
extends java.lang.Enum<LocalSearchMetaheuristic.Value>
implements com.google.protobuf.ProtocolMessageEnum

Protobuf enum operations_research.LocalSearchMetaheuristic.Value

Enum Constant Summary

Enum Constants

Enum Constant and Description
AUTOMATIC Lets the solver select the metaheuristic.
GENERIC_TABU_SEARCH Uses tabu search on a list of variables to escape local minima.
GREEDY_DESCENT Accepts improving (cost-reducing) local search neighbors until a local minimum is reached.
GUIDED_LOCAL_SEARCH Uses guided local search to escape local minima (cf. http://en.wikipedia.org/wiki/Guided_Local_Search); this is generally the most efficient metaheuristic for vehicle routing.
SIMULATED_ANNEALING Uses simulated annealing to escape local minima (cf. http://en.wikipedia.org/wiki/Simulated_annealing).
TABU_SEARCH Uses tabu search to escape local minima (cf. http://en.wikipedia.org/wiki/Tabu_search).
UNRECOGNIZED
UNSET Means "not set".

Field Summary

Fields

Modifier and Type	Field and Description
static int	AUTOMATIC_VALUE Lets the solver select the metaheuristic.
static int	GENERIC_TABU_SEARCH_VALUE Uses tabu search on a list of variables to escape local minima.
static int	GREEDY_DESCENT_VALUE Accepts improving (cost-reducing) local search neighbors until a local minimum is reached.
static int	GUIDED_LOCAL_SEARCH_VALUE Uses guided local search to escape local minima (cf. http://en.wikipedia.org/wiki/Guided_Local_Search); this is generally the most efficient metaheuristic for vehicle routing.
static int	SIMULATED_ANNEALING_VALUE Uses simulated annealing to escape local minima (cf. http://en.wikipedia.org/wiki/Simulated_annealing).
static int	TABU_SEARCH_VALUE Uses tabu search to escape local minima (cf. http://en.wikipedia.org/wiki/Tabu_search).
static int	UNSET_VALUE Means "not set".

Method Summary

Modifier and Type	Method and Description
static LocalSearchMetaheuristic.Value	forNumber(int value)
static com.google.protobuf.Descriptors.EnumDescriptor	getDescriptor()
com.google.protobuf.Descriptors.EnumDescriptor	getDescriptorForType()
int	getNumber()
com.google.protobuf.Descriptors.EnumValueDescriptor	getValueDescriptor()
static com.google.protobuf.Internal.EnumLiteMap<LocalSearchMetaheuristic.Value>	internalGetValueMap()
static LocalSearchMetaheuristic.Value	valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc)
static LocalSearchMetaheuristic.Value	valueOf(int value) Deprecated. Use forNumber(int) instead.
static LocalSearchMetaheuristic.Value	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static LocalSearchMetaheuristic.Value[]	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

UNSET

public static final LocalSearchMetaheuristic.Value UNSET

 Means "not set". If the solver sees that, it'll behave like for
 AUTOMATIC. But this value won't override others upon a proto MergeFrom(),
 whereas "AUTOMATIC" will.
 

UNSET = 0;

AUTOMATIC

public static final LocalSearchMetaheuristic.Value AUTOMATIC

 Lets the solver select the metaheuristic.
 

AUTOMATIC = 6;

GREEDY_DESCENT

public static final LocalSearchMetaheuristic.Value GREEDY_DESCENT

 Accepts improving (cost-reducing) local search neighbors until a local
 minimum is reached.
 

GREEDY_DESCENT = 1;

GUIDED_LOCAL_SEARCH

public static final LocalSearchMetaheuristic.Value GUIDED_LOCAL_SEARCH

 Uses guided local search to escape local minima
 (cf. http://en.wikipedia.org/wiki/Guided_Local_Search); this is generally
 the most efficient metaheuristic for vehicle routing.
 

GUIDED_LOCAL_SEARCH = 2;

SIMULATED_ANNEALING

public static final LocalSearchMetaheuristic.Value SIMULATED_ANNEALING

 Uses simulated annealing to escape local minima
 (cf. http://en.wikipedia.org/wiki/Simulated_annealing).
 

SIMULATED_ANNEALING = 3;

TABU_SEARCH

public static final LocalSearchMetaheuristic.Value TABU_SEARCH

 Uses tabu search to escape local minima
 (cf. http://en.wikipedia.org/wiki/Tabu_search).
 

TABU_SEARCH = 4;

GENERIC_TABU_SEARCH

public static final LocalSearchMetaheuristic.Value GENERIC_TABU_SEARCH

 Uses tabu search on a list of variables to escape local minima. The list
 of variables to use must be provided via the SetTabuVarsCallback
 callback.
 

GENERIC_TABU_SEARCH = 5;

UNRECOGNIZED

public static final LocalSearchMetaheuristic.Value UNRECOGNIZED

Field Detail

UNSET_VALUE

public static final int UNSET_VALUE

 Means "not set". If the solver sees that, it'll behave like for
 AUTOMATIC. But this value won't override others upon a proto MergeFrom(),
 whereas "AUTOMATIC" will.
 

UNSET = 0;

See Also:

Constant Field Values

AUTOMATIC_VALUE

public static final int AUTOMATIC_VALUE

 Lets the solver select the metaheuristic.
 

AUTOMATIC = 6;

See Also:

Constant Field Values

GREEDY_DESCENT_VALUE

public static final int GREEDY_DESCENT_VALUE

 Accepts improving (cost-reducing) local search neighbors until a local
 minimum is reached.
 

GREEDY_DESCENT = 1;

See Also:

Constant Field Values

GUIDED_LOCAL_SEARCH_VALUE

public static final int GUIDED_LOCAL_SEARCH_VALUE

 Uses guided local search to escape local minima
 (cf. http://en.wikipedia.org/wiki/Guided_Local_Search); this is generally
 the most efficient metaheuristic for vehicle routing.
 

GUIDED_LOCAL_SEARCH = 2;

See Also:

Constant Field Values

SIMULATED_ANNEALING_VALUE

public static final int SIMULATED_ANNEALING_VALUE

 Uses simulated annealing to escape local minima
 (cf. http://en.wikipedia.org/wiki/Simulated_annealing).
 

SIMULATED_ANNEALING = 3;

See Also:

Constant Field Values

TABU_SEARCH_VALUE

public static final int TABU_SEARCH_VALUE

 Uses tabu search to escape local minima
 (cf. http://en.wikipedia.org/wiki/Tabu_search).
 

TABU_SEARCH = 4;

See Also:

Constant Field Values

GENERIC_TABU_SEARCH_VALUE

public static final int GENERIC_TABU_SEARCH_VALUE

 Uses tabu search on a list of variables to escape local minima. The list
 of variables to use must be provided via the SetTabuVarsCallback
 callback.
 

GENERIC_TABU_SEARCH = 5;

See Also:

Constant Field Values

Method Detail

values

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

Returns:

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

valueOf

public static LocalSearchMetaheuristic.Value 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

getNumber

public final int getNumber()

Specified by:

getNumber in interface com.google.protobuf.Internal.EnumLite

Specified by:

getNumber in interface com.google.protobuf.ProtocolMessageEnum

valueOf

@Deprecated
public static LocalSearchMetaheuristic.Value valueOf(int value)

Deprecated. Use forNumber(int) instead.

Parameters:

value - The numeric wire value of the corresponding enum entry.

Returns:

The enum associated with the given numeric wire value.

forNumber

public static LocalSearchMetaheuristic.Value forNumber(int value)

Parameters:

value - The numeric wire value of the corresponding enum entry.

Returns:

The enum associated with the given numeric wire value.

internalGetValueMap

public static com.google.protobuf.Internal.EnumLiteMap<LocalSearchMetaheuristic.Value> internalGetValueMap()

getValueDescriptor

public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor()

Specified by:

getValueDescriptor in interface com.google.protobuf.ProtocolMessageEnum

getDescriptorForType

public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType()

Specified by:

getDescriptorForType in interface com.google.protobuf.ProtocolMessageEnum

getDescriptor

public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor()

valueOf

public static LocalSearchMetaheuristic.Value valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc)