com.google.ortools.glop

Enum GlopParameters.PricingRule

java.lang.Object

java.lang.Enum<GlopParameters.PricingRule>

com.google.ortools.glop.GlopParameters.PricingRule

All Implemented Interfaces:

com.google.protobuf.Internal.EnumLite, com.google.protobuf.ProtocolMessageEnum, java.io.Serializable, java.lang.Comparable<GlopParameters.PricingRule>

Enclosing class:

GlopParameters

public static enum GlopParameters.PricingRule
extends java.lang.Enum<GlopParameters.PricingRule>
implements com.google.protobuf.ProtocolMessageEnum

 General strategy used during pricing.
 

Protobuf enum operations_research.glop.GlopParameters.PricingRule

Enum Constant Summary

Enum Constants

Enum Constant and Description
DANTZIG Strategy using only the reduced cost of a variable.
DEVEX Normalize the reduced costs by an approximation of the norm of the edges.
STEEPEST_EDGE Normalize the reduced costs by the norm of the edges.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DANTZIG_VALUE Strategy using only the reduced cost of a variable.
static int	DEVEX_VALUE Normalize the reduced costs by an approximation of the norm of the edges.
static int	STEEPEST_EDGE_VALUE Normalize the reduced costs by the norm of the edges.

Method Summary

Modifier and Type	Method and Description
static GlopParameters.PricingRule	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<GlopParameters.PricingRule>	internalGetValueMap()
static GlopParameters.PricingRule	valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc)
static GlopParameters.PricingRule	valueOf(int value) Deprecated. Use forNumber(int) instead.
static GlopParameters.PricingRule	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static GlopParameters.PricingRule[]	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

DANTZIG

public static final GlopParameters.PricingRule DANTZIG

 Strategy using only the reduced cost of a variable.

 Note that compared to a textbook rule, we normalize the reduced cost of a
 variable using the norm of the associated column. This improves quite a
 bit the rule at almost no extra complexity. See the first paper from
 Ping-Qi Pan cited in primal_edge_norms.h.
 

DANTZIG = 0;

STEEPEST_EDGE

public static final GlopParameters.PricingRule STEEPEST_EDGE

 Normalize the reduced costs by the norm of the edges. Since computing
 norms at each step is too expensive, reduced costs and norms are
 updated iteratively from one iteration to the next.
 

STEEPEST_EDGE = 1;

DEVEX

public static final GlopParameters.PricingRule DEVEX

 Normalize the reduced costs by an approximation of the norm of the edges.
 This should offer a good tradeoff between steepest edge and speed.
 

DEVEX = 2;

Field Detail

DANTZIG_VALUE

public static final int DANTZIG_VALUE

 Strategy using only the reduced cost of a variable.

 Note that compared to a textbook rule, we normalize the reduced cost of a
 variable using the norm of the associated column. This improves quite a
 bit the rule at almost no extra complexity. See the first paper from
 Ping-Qi Pan cited in primal_edge_norms.h.
 

DANTZIG = 0;

See Also:

Constant Field Values

STEEPEST_EDGE_VALUE

public static final int STEEPEST_EDGE_VALUE

 Normalize the reduced costs by the norm of the edges. Since computing
 norms at each step is too expensive, reduced costs and norms are
 updated iteratively from one iteration to the next.
 

STEEPEST_EDGE = 1;

See Also:

Constant Field Values

DEVEX_VALUE

public static final int DEVEX_VALUE

 Normalize the reduced costs by an approximation of the norm of the edges.
 This should offer a good tradeoff between steepest edge and speed.
 

DEVEX = 2;

See Also:

Constant Field Values

Method Detail

values

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

Returns:

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

valueOf

public static GlopParameters.PricingRule 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 GlopParameters.PricingRule 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 GlopParameters.PricingRule 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<GlopParameters.PricingRule> 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 GlopParameters.PricingRule valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc)