Class SimulatedAnnealingAcceptanceStrategy

java.lang.Object
com.google.protobuf.AbstractMessageLite
com.google.protobuf.AbstractMessage
com.google.protobuf.GeneratedMessage
com.google.ortools.constraintsolver.SimulatedAnnealingAcceptanceStrategy
All Implemented Interfaces:
SimulatedAnnealingAcceptanceStrategyOrBuilder, com.google.protobuf.Message, com.google.protobuf.MessageLite, com.google.protobuf.MessageLiteOrBuilder, com.google.protobuf.MessageOrBuilder, Serializable
@Generated public final class SimulatedAnnealingAcceptanceStrategy extends com.google.protobuf.GeneratedMessage implements SimulatedAnnealingAcceptanceStrategyOrBuilder
Acceptance strategy in which solutions are accepted with a probability that
depends on its quality and on the current state of the search.
Protobuf type operations_research.SimulatedAnnealingAcceptanceStrategy
See Also:

  • Field Details

    • COOLING_SCHEDULE_STRATEGY_FIELD_NUMBER

      public static final int COOLING_SCHEDULE_STRATEGY_FIELD_NUMBER
      See Also:

    • INITIAL_TEMPERATURE_FIELD_NUMBER

      public static final int INITIAL_TEMPERATURE_FIELD_NUMBER
      See Also:

    • FINAL_TEMPERATURE_FIELD_NUMBER

      public static final int FINAL_TEMPERATURE_FIELD_NUMBER
      See Also:

    • AUTOMATIC_TEMPERATURES_FIELD_NUMBER

      public static final int AUTOMATIC_TEMPERATURES_FIELD_NUMBER
      See Also:

  • Method Details

    • getDescriptor

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

    • internalGetFieldAccessorTable

      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable internalGetFieldAccessorTable()
      Specified by:
      internalGetFieldAccessorTable in class com.google.protobuf.GeneratedMessage

    • getCoolingScheduleStrategyValue

      public int getCoolingScheduleStrategyValue()
      Determines the speed at which the temperature changes from initial to
final.
      .operations_research.CoolingScheduleStrategy.Value cooling_schedule_strategy = 1;
      Specified by:
      getCoolingScheduleStrategyValue in interface SimulatedAnnealingAcceptanceStrategyOrBuilder
      Returns:
      The enum numeric value on the wire for coolingScheduleStrategy.

    • getCoolingScheduleStrategy

      public CoolingScheduleStrategy.Value getCoolingScheduleStrategy()
      Determines the speed at which the temperature changes from initial to
final.
      .operations_research.CoolingScheduleStrategy.Value cooling_schedule_strategy = 1;
      Specified by:
      getCoolingScheduleStrategy in interface SimulatedAnnealingAcceptanceStrategyOrBuilder
      Returns:
      The coolingScheduleStrategy.

    • hasInitialTemperature

      public boolean hasInitialTemperature()
      The initial temperature. See CoolingScheduleStrategy for its usage.
      optional double initial_temperature = 2;
      Specified by:
      hasInitialTemperature in interface SimulatedAnnealingAcceptanceStrategyOrBuilder
      Returns:
      Whether the initialTemperature field is set.

    • getInitialTemperature

      public double getInitialTemperature()
      The initial temperature. See CoolingScheduleStrategy for its usage.
      optional double initial_temperature = 2;
      Specified by:
      getInitialTemperature in interface SimulatedAnnealingAcceptanceStrategyOrBuilder
      Returns:
      The initialTemperature.

    • hasFinalTemperature

      public boolean hasFinalTemperature()
      The final temperature. See CoolingScheduleStrategy for its usage.
      optional double final_temperature = 3;
      Specified by:
      hasFinalTemperature in interface SimulatedAnnealingAcceptanceStrategyOrBuilder
      Returns:
      Whether the finalTemperature field is set.

    • getFinalTemperature

      public double getFinalTemperature()
      The final temperature. See CoolingScheduleStrategy for its usage.
      optional double final_temperature = 3;
      Specified by:
      getFinalTemperature in interface SimulatedAnnealingAcceptanceStrategyOrBuilder
      Returns:
      The finalTemperature.

    • hasAutomaticTemperatures

      public boolean hasAutomaticTemperatures()
      Automatically define the value for the temperatures as follows.
First, a  reference temperature t is defined as
w1 * c1 + w2 * c2 + ... + wK * cK
where 0 < wJ <= 1 is the fraction of vehicles of cost class J and cJ is the
average arc cost for the cost class J.
The value of cJ is identified by randomly sampling N arc costs for the cost
class J, where N is equal to the number of instance nodes.
The initial and final temperatures are then defined as
- initial_temperature: 0.1 * t
- final_temperature: 0.001 * t
      optional bool automatic_temperatures = 4;
      Specified by:
      hasAutomaticTemperatures in interface SimulatedAnnealingAcceptanceStrategyOrBuilder
      Returns:
      Whether the automaticTemperatures field is set.

    • getAutomaticTemperatures

      public boolean getAutomaticTemperatures()
      Automatically define the value for the temperatures as follows.
First, a  reference temperature t is defined as
w1 * c1 + w2 * c2 + ... + wK * cK
where 0 < wJ <= 1 is the fraction of vehicles of cost class J and cJ is the
average arc cost for the cost class J.
The value of cJ is identified by randomly sampling N arc costs for the cost
class J, where N is equal to the number of instance nodes.
The initial and final temperatures are then defined as
- initial_temperature: 0.1 * t
- final_temperature: 0.001 * t
      optional bool automatic_temperatures = 4;
      Specified by:
      getAutomaticTemperatures in interface SimulatedAnnealingAcceptanceStrategyOrBuilder
      Returns:
      The automaticTemperatures.

    • isInitialized

      public final boolean isInitialized()
      Specified by:
      isInitialized in interface com.google.protobuf.MessageLiteOrBuilder
      Overrides:
      isInitialized in class com.google.protobuf.GeneratedMessage

    • writeTo

      public void writeTo(com.google.protobuf.CodedOutputStream output) throws IOException
      Specified by:
      writeTo in interface com.google.protobuf.MessageLite
      Overrides:
      writeTo in class com.google.protobuf.GeneratedMessage
      Throws:
      IOException

    • getSerializedSize

      public int getSerializedSize()
      Specified by:
      getSerializedSize in interface com.google.protobuf.MessageLite
      Overrides:
      getSerializedSize in class com.google.protobuf.GeneratedMessage

    • equals

      public boolean equals(Object obj)
      Specified by:
      equals in interface com.google.protobuf.Message
      Overrides:
      equals in class com.google.protobuf.AbstractMessage

    • hashCode

      public int hashCode()
      Specified by:
      hashCode in interface com.google.protobuf.Message
      Overrides:
      hashCode in class com.google.protobuf.AbstractMessage

    • parseFrom

      public static SimulatedAnnealingAcceptanceStrategy parseFrom(ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException
      Throws:
      com.google.protobuf.InvalidProtocolBufferException

    • parseFrom

      public static SimulatedAnnealingAcceptanceStrategy parseFrom(ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws com.google.protobuf.InvalidProtocolBufferException
      Throws:
      com.google.protobuf.InvalidProtocolBufferException

    • parseFrom

      public static SimulatedAnnealingAcceptanceStrategy parseFrom(com.google.protobuf.ByteString data) throws com.google.protobuf.InvalidProtocolBufferException
      Throws:
      com.google.protobuf.InvalidProtocolBufferException

    • parseFrom

      public static SimulatedAnnealingAcceptanceStrategy parseFrom(com.google.protobuf.ByteString data, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws com.google.protobuf.InvalidProtocolBufferException
      Throws:
      com.google.protobuf.InvalidProtocolBufferException

    • parseFrom

      public static SimulatedAnnealingAcceptanceStrategy parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException
      Throws:
      com.google.protobuf.InvalidProtocolBufferException

    • parseFrom

      public static SimulatedAnnealingAcceptanceStrategy parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws com.google.protobuf.InvalidProtocolBufferException
      Throws:
      com.google.protobuf.InvalidProtocolBufferException

    • parseFrom

      public static SimulatedAnnealingAcceptanceStrategy parseFrom(InputStream input) throws IOException
      Throws:
      IOException

    • parseFrom

      public static SimulatedAnnealingAcceptanceStrategy parseFrom(InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws IOException
      Throws:
      IOException

    • parseDelimitedFrom

      public static SimulatedAnnealingAcceptanceStrategy parseDelimitedFrom(InputStream input) throws IOException
      Throws:
      IOException

    • parseDelimitedFrom

      public static SimulatedAnnealingAcceptanceStrategy parseDelimitedFrom(InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws IOException
      Throws:
      IOException

    • parseFrom

      public static SimulatedAnnealingAcceptanceStrategy parseFrom(com.google.protobuf.CodedInputStream input) throws IOException
      Throws:
      IOException

    • parseFrom

      public static SimulatedAnnealingAcceptanceStrategy parseFrom(com.google.protobuf.CodedInputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws IOException
      Throws:
      IOException

    • newBuilderForType

      public SimulatedAnnealingAcceptanceStrategy.Builder newBuilderForType()
      Specified by:
      newBuilderForType in interface com.google.protobuf.Message
      Specified by:
      newBuilderForType in interface com.google.protobuf.MessageLite

    • newBuilder

      public static SimulatedAnnealingAcceptanceStrategy.Builder newBuilder()

    • newBuilder

      public static SimulatedAnnealingAcceptanceStrategy.Builder newBuilder(SimulatedAnnealingAcceptanceStrategy prototype)

    • toBuilder

      public SimulatedAnnealingAcceptanceStrategy.Builder toBuilder()
      Specified by:
      toBuilder in interface com.google.protobuf.Message
      Specified by:
      toBuilder in interface com.google.protobuf.MessageLite

    • newBuilderForType

      protected SimulatedAnnealingAcceptanceStrategy.Builder newBuilderForType(com.google.protobuf.AbstractMessage.BuilderParent parent)
      Overrides:
      newBuilderForType in class com.google.protobuf.AbstractMessage

    • getDefaultInstance

      public static SimulatedAnnealingAcceptanceStrategy getDefaultInstance()

    • parser

      public static com.google.protobuf.Parser<SimulatedAnnealingAcceptanceStrategy> parser()

    • getParserForType

      public com.google.protobuf.Parser<SimulatedAnnealingAcceptanceStrategy> getParserForType()
      Specified by:
      getParserForType in interface com.google.protobuf.Message
      Specified by:
      getParserForType in interface com.google.protobuf.MessageLite
      Overrides:
      getParserForType in class com.google.protobuf.GeneratedMessage

    • getDefaultInstanceForType

      public SimulatedAnnealingAcceptanceStrategy getDefaultInstanceForType()
      Specified by:
      getDefaultInstanceForType in interface com.google.protobuf.MessageLiteOrBuilder
      Specified by:
      getDefaultInstanceForType in interface com.google.protobuf.MessageOrBuilder