BasicAbstractActorIncarnation

Type Members

abstract class AbstractActorSystemFacade extends distrib.actor.Platform.AbstractSystemFacade

Definition Classes
PlatformAPIFacade
trait AbstractDeviceManager extends AnyRef

Definition Classes
PlatformAPIFacade
trait AbstractPlatformFacade extends AnyRef

Definition Classes
PlatformAPIFacade
trait AbstractSystemFacade extends AnyRef

Definition Classes
PlatformAPIFacade
case class Ack extends Product with Serializable

Definition Classes
PlatformMessages
trait ActorPlatformConfigurator extends distrib.actor.Platform.PlatformConfigurator

Definition Classes
PlatformAPIFacade
trait ActuatorManagementBehavior extends BasicActorBehavior

Definition Classes
PlatformDevices
class AggregateApplicationActor extends Actor

Definition Classes
PlatformActors
case class AggregateApplicationSettings extends Product with Serializable

Definition Classes
PlatformSettings
trait AggregateComputation[T] extends Incarnation.ExecutionTemplate with FieldCalculusSyntax with Serializable

Definition Classes
Incarnation
trait AggregateInterpreter extends Incarnation.ExecutionTemplate with FieldCalculusSyntax with Serializable

Definition Classes
Incarnation
trait AggregateProgram extends AggregateInterpreter

Definition Classes
Incarnation
trait AggregateProgramSchema extends ProgramSchema

Definition Classes
Semantics
sealed trait AsyncExecStrategy extends distrib.Platform.ExecStrategy

Definition Classes
PlatformSettings
class AutonomousScheduler extends Actor with distrib.actor.Platform.GenericScheduler with PeriodicBehavior

Definition Classes
PlatformSchedulers
abstract class BaseContextImpl extends core.Engine.Context with core.Engine.ContextOps with Serializable

Definition Classes
Engine
trait BaseDeviceActor extends Actor

Definition Classes
PlatformDevices
trait BaseNbrManagementBehavior extends BasicActorBehavior

Definition Classes
PlatformDevices
class Basic3DSpace[E] extends space.BasicSpatialAbstraction.MutableMetricSpace[E] with EuclideanStrategy with Serializable

Definition Classes
BasicSpatialAbstraction
class BasicAggregateInterpreter extends AggregateInterpreter

Definition Classes
Incarnation
class BasicDeviceManager extends distrib.actor.Platform.AbstractDeviceManager with Serializable

Definition Classes
PlatformAPIFacade
class BasicMain extends distrib.Platform.SystemMain

Definition Classes
PlatformAPIFacade
trait Builtins extends AnyRef

Definition Classes
RichLanguage
type CONTEXT = Context with ContextOps

Definition Classes
Engine → Semantics → Core
class CmdLineMain extends distrib.Platform.SystemMain

Definition Classes
PlatformAPIFacade
trait CodeMobilitySupportBehavior extends AnyRef

Definition Classes
PlatformCodeMobilitySupport
type ComputationContext = CONTEXT with ComputationContextContract

Definition Classes
BasicAbstractActorIncarnation → BasePlatform
trait ComputationContextContract extends AnyRef

Definition Classes
BasePlatform
trait ComputationDeviceActor extends distrib.actor.Platform.BaseDeviceActor with BasicActorBehavior with distrib.actor.Platform.SensingBehavior with distrib.actor.Platform.SensorManagementBehavior with distrib.actor.Platform.ActuatorManagementBehavior with distrib.actor.Platform.BaseNbrManagementBehavior

Definition Classes
PlatformDevices
type ComputationExport = EXPORT with ComputationExportContract

Definition Classes
BasicAbstractActorIncarnation → BasePlatform
trait ComputationExportContract extends AnyRef

Definition Classes
BasePlatform
trait ConfigurableSettings[S] extends AnyRef

Definition Classes
PlatformSettings
trait Constructs extends AnyRef

Definition Classes
Language
trait ConstructsSemantics extends core.Semantics.Constructs

Definition Classes
Semantics
trait Context extends AnyRef

Definition Classes
Core
class ContextImpl extends BaseContextImpl

Definition Classes
Engine
trait ContextOps extends AnyRef

Definition Classes
Semantics
type D = Double

Definition Classes
BasicSpatialAbstraction → MetricSpatialAbstraction
type DataFactory = DataFactoryContract

Definition Classes
BasicAbstractActorIncarnation → BasePlatform
trait DataFactoryContract extends AnyRef

Definition Classes
BasePlatform
case class DelayedDeviceExecStrategy extends distrib.Platform.DeviceExecStrategy with Product with Serializable

Definition Classes
PlatformSettings
case class DeploymentSettings extends Product with Serializable

Definition Classes
PlatformSettings
case class DevInfo extends Product with Serializable

Definition Classes
PlatformMessages
case class DeviceConfigurationSettings extends Product with Serializable

Definition Classes
PlatformSettings
case class DeviceDelegated extends distrib.Platform.ExecScope with Product with Serializable

Definition Classes
PlatformSettings
sealed trait DeviceExecStrategy extends AnyRef

Definition Classes
PlatformSettings
type DeviceManager = BasicDeviceManager

Definition Classes
PlatformAPIFacade
trait DistanceStrategy extends AnyRef

Definition Classes
MetricSpatialAbstraction
trait DistributedPlatformFactory extends AnyRef

Definition Classes
PlatformAPIFacade
trait DynamicComputationDeviceActor extends distrib.actor.Platform.ComputationDeviceActor with distrib.actor.Platform.DynamicDeviceLifecycleBehavior

Definition Classes
PlatformDevices
trait DynamicDeviceLifecycleBehavior extends LifecycleBehavior with PeriodicBehavior

Definition Classes
PlatformDevices
type EXECUTION = AggregateInterpreter

Definition Classes
BasicAbstractIncarnation → Semantics → Core
type EXPORT = Export with ExportOps with Serializable

Definition Classes
Engine → Semantics → Core
case class EmptyProfileSettings extends distrib.Platform.ConfigurableSettings[distrib.Platform.EmptyProfileSettings] with Product with Serializable

Definition Classes
PlatformSettings
class EngineFactory extends core.Engine.Factory with Serializable

Definition Classes
Engine
trait EuclideanStrategy extends space.BasicSpatialAbstraction.DistanceStrategy with space.BasicSpatialAbstraction.NeighbouringRelation with Serializable

Definition Classes
BasicSpatialAbstraction
sealed trait ExecScope extends AnyRef

Definition Classes
PlatformSettings
sealed trait ExecStrategy extends AnyRef

Definition Classes
PlatformSettings
case class ExecutionSettings extends Product with Serializable

Definition Classes
PlatformSettings
trait ExecutionTemplate extends (core.Semantics.CONTEXT) ⇒ core.Semantics.EXPORT with ConstructsSemantics with ProgramSchema

Definition Classes
Semantics
trait Export extends AnyRef

Definition Classes
Core
class ExportImpl extends core.Engine.Export with core.Engine.ExportOps with Serializable

Definition Classes
Engine
trait ExportOps extends AnyRef

Definition Classes
Semantics
type FACTORY = Factory

Definition Classes
Engine → Semantics
trait Factory extends AnyRef

Definition Classes
Semantics
trait FieldCalculusSyntax extends Incarnation.Constructs with Incarnation.Builtins

Definition Classes
Incarnation
class FileMain extends distrib.Platform.SystemMain

Definition Classes
PlatformAPIFacade
sealed case class FoldHood[A] extends Slot with Product with Serializable

Definition Classes
Semantics
sealed case class FunCall[A] extends Slot with Product with Serializable

Definition Classes
Semantics
trait GenericScheduler extends AnyRef

Definition Classes
PlatformSchedulers
case class Global extends distrib.Platform.ExecScope with Product with Serializable

Definition Classes
PlatformSettings
type ID = Int

Definition Classes
BasicAbstractIncarnation → Core
type LSNS = String

Definition Classes
BasicAbstractIncarnation → Core
type LSensorName = String

Definition Classes
BasicAbstractActorIncarnation → BasePlatform
trait MetricSpace[E] extends space.MetricSpatialAbstraction.Space[E] with DistanceStrategy

Definition Classes
MetricSpatialAbstraction
trait MissingCodeManagementBehavior extends BasicActorBehavior

Definition Classes
PlatformCodeMobilitySupport
case class MsgAddActuator extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgAddDevice extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgAddPushSensor extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgAddSensor extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgDeliverTo extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgDeviceLocation extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgExport extends ScafiMessage with Product with Serializable

Definition Classes
PlatformMessages
case class MsgExports extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgGetNbrSensorValue extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgGetNeighborhood extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgGetNeighborhoodExports extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgGetSensorValue extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgLocalSensorValue[T] extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgLookup extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgMyFrequency extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgNbrSensorValue extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgNeighbor extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgNeighborhood extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgNeighborhoodExports extends ScafiMessage with Product with Serializable

Definition Classes
PlatformMessages
case class MsgProgram extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgRegistration extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgRemoveNeighbor extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgRound extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgSensorValue extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgSetFrequency extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgShipProgram extends Product with Serializable

Definition Classes
PlatformMessages
case class MsgWithDevices extends Product with Serializable

Definition Classes
PlatformMessages
trait MutableMetricSpace[E] extends MetricSpace[E] with space.MetricSpatialAbstraction.MutableSpace[E]

Definition Classes
MetricSpatialAbstraction
trait MutableSpace[E] extends Space[E]

Definition Classes
SpatialAbstraction
case class MyNameIs extends Product with Serializable

Definition Classes
PlatformMessages
type NSNS = String

Definition Classes
BasicAbstractIncarnation → Core
type NSensorName = String

Definition Classes
BasicAbstractActorIncarnation → BasePlatform
sealed case class Nbr[A] extends Slot with Product with Serializable

Definition Classes
Semantics
case class NbrInfo extends Product with Serializable

Definition Classes
Platform
case class NbrSensorUnknownException extends Exception with Product with Serializable

Definition Classes
Semantics
trait NeighbouringRelation extends AnyRef

Definition Classes
SpatialAbstraction
trait ObservableDeviceActor extends distrib.actor.Platform.ComputationDeviceActor with ObservableActorBehavior

Definition Classes
PlatformDevices
case class OrderedExecStrategy extends distrib.Platform.AsyncExecStrategy with Product with Serializable

Definition Classes
PlatformSettings
case class OutOfDomainException extends Exception with Product with Serializable

Definition Classes
Semantics
abstract type P <: Point3D

Definition Classes
BasicSpatialAbstraction → SpatialAbstraction
trait Path extends AnyRef

Definition Classes
Semantics
class PathImpl extends core.Engine.Path with Equals with Serializable

Definition Classes
Engine
case class PeriodicDeviceExecStrategy extends distrib.Platform.DeviceExecStrategy with Product with Serializable

Definition Classes
PlatformSettings
abstract class PeriodicObservableSensorActor[T] extends PeriodicObservableInputProviderActor[distrib.actor.Platform.LSensorName, T]

Definition Classes
PlatformSensors
trait PlatformConfigurator extends AnyRef

Definition Classes
PlatformAPIFacade
abstract type PlatformFacade <: AbstractPlatformFacade

Definition Classes
PlatformAPIFacade
case class PlatformSettings extends Product with Serializable

Definition Classes
PlatformSettings
abstract type ProfileSettings <: ConfigurableSettings[ProfileSettings]

Definition Classes
PlatformSettings
type Program = AggregateProgram with ProgramContract

Definition Classes
BasicAbstractActorIncarnation → BasePlatform
trait ProgramContract extends AnyRef

Definition Classes
BasePlatform
trait ProgramSchema extends AnyRef

Definition Classes
Semantics
trait QueryableDeviceActorBehavior extends BasicActorBehavior

Definition Classes
PlatformDevices
case class RandomExecStrategy extends distrib.Platform.AsyncExecStrategy with Product with Serializable

Definition Classes
PlatformSettings
sealed case class Rep[A] extends Slot with Product with Serializable

Definition Classes
Semantics
trait RoundVM extends AnyRef

Definition Classes
Semantics
class RoundVMImpl extends RoundVM

Definition Classes
Semantics
type SPACE[E] = Basic3DSpace[E]

Definition Classes
BasicSpatialAbstraction → MetricSpatialAbstraction → SpatialAbstraction
class ScafiCmdLineParser extends OptionParser[distrib.Platform.Settings]

Definition Classes
PlatformSettings
sealed case class Scope[K] extends Slot with Product with Serializable

Definition Classes
Semantics
trait SensingBehavior extends BasicActorBehavior

Definition Classes
PlatformDevices
trait SensorManagementBehavior extends BasicActorBehavior

Definition Classes
PlatformDevices
case class SensorUnknownException extends Exception with Product with Serializable

Definition Classes
Semantics
case class Settings extends Product with Serializable

Definition Classes
PlatformSettings
trait SettingsFactory extends Serializable

Definition Classes
PlatformSettings
trait Slot extends Serializable

Definition Classes
Semantics
trait Space[E] extends NeighbouringRelation

Definition Classes
SpatialAbstraction
trait SpaceAwareDevice extends AnyRef

Definition Classes
SpaceAwarePlatform
trait SpaceTimeAwareDevice extends (SpaceTimeAwarePlatform.this)#SpaceAwareDevice with (SpaceTimeAwarePlatform.this)#TimeAwareDevice

Definition Classes
SpaceTimeAwarePlatform
trait StandardSensors extends AnyRef

Definition Classes
Incarnation
case class SubsystemDelegated extends distrib.Platform.ExecScope with Product with Serializable

Definition Classes
PlatformSettings
case class SubsystemSettings extends Product with Serializable

Definition Classes
PlatformSettings
abstract type SystemFacade <: AbstractSystemFacade

Definition Classes
PlatformAPIFacade
trait SystemMain extends App with Serializable

Definition Classes
PlatformAPIFacade
abstract type Time

Definition Classes
TimeAbstraction
trait TimeAwareDevice extends AnyRef

Definition Classes
TimeAwarePlatform
type UID = Int

Definition Classes
BasicAbstractActorIncarnation → BasePlatform
trait UpdateableAggregateComputationBehavior extends BasicActorBehavior with distrib.actor.Platform.MissingCodeManagementBehavior

Definition Classes
PlatformCodeMobilitySupport

Abstract Value Members

abstract val platformFactory: DistributedPlatformFactory

Definition Classes
PlatformAPIFacade
abstract val settingsFactory: SettingsFactory

Definition Classes
PlatformSettings

Concrete Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
val LSNS_DELTA_TIME: String

Definition Classes
BasicAbstractIncarnation → TimeAwarePlatform
val LSNS_POSITION: String

Definition Classes
BasicAbstractIncarnation → SpaceAwarePlatform
val LSNS_TIME: String

Definition Classes
BasicAbstractIncarnation → TimeAwarePlatform
val LSNS_TIMESTAMP: String

Definition Classes
BasicAbstractIncarnation → TimeAwarePlatform
val MsgGetExport: Int

Definition Classes
PlatformMessages
val MsgGetIds: Int

Definition Classes
PlatformMessages
val MsgGetNeighbors: Int

Definition Classes
PlatformMessages
val NBR_DELAY: String

Definition Classes
BasicAbstractIncarnation → TimeAwarePlatform
val NBR_LAG: String

Definition Classes
BasicAbstractIncarnation → TimeAwarePlatform
val NBR_RANGE_NAME: String

Definition Classes
BasicAbstractIncarnation → SpaceAwarePlatform
val NBR_VECTOR: String

Definition Classes
BasicAbstractIncarnation → SpaceAwarePlatform
implicit def adaptContext(ctx: CONTEXT): ComputationContext
implicit def adaptExport(export: EXPORT): ComputationExport
implicit def adaptProgram(program: AggregateProgram): AggregateProgram with ProgramContract
final def asInstanceOf[T0]: T0

Definition Classes
Any
def buildNewSpace[E](elems: Iterable[(E, P)]): SPACE[E]

Definition Classes
BasicSpatialAbstraction → SpatialAbstraction
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
def cmdLineParser: OptionParser[Settings]

Definition Classes
PlatformSettings
val dataFactory: DataFactoryContract

Definition Classes
BasicAbstractActorIncarnation → BasePlatform
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def extendParser(p: OptionParser[Settings]): Unit

Definition Classes
PlatformSettings
implicit val factory: EngineFactory

Definition Classes
Engine → Semantics
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
implicit val interopID: Interop[ID]

Definition Classes
BasicAbstractIncarnation → Engine
implicit val interopLSNS: Interop[LSNS]

Definition Classes
BasicAbstractIncarnation → Engine
implicit val interopNSNS: Interop[NSNS]

Definition Classes
BasicAbstractIncarnation → Engine
val interopUID: Interop[ID]

Definition Classes
BasicAbstractActorIncarnation → BasePlatform
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
implicit val linearID: Linearizable[ID]

Definition Classes
BasicAbstractIncarnation → Engine
val linearUID: Linearizable[ID]

Definition Classes
BasicAbstractActorIncarnation → BasePlatform
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
implicit val positionOrdering: Ordering[P]

Definition Classes
BasicSpatialAbstraction → MetricSpatialAbstraction
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package incarnations

trait BasicAbstractActorIncarnation extends BasicAbstractDistributedIncarnation with Platform

Type Members

abstract class AbstractActorSystemFacade extends distrib.actor.Platform.AbstractSystemFacade

trait AbstractDeviceManager extends AnyRef

trait AbstractPlatformFacade extends AnyRef

trait AbstractSystemFacade extends AnyRef

case class Ack extends Product with Serializable

trait ActorPlatformConfigurator extends distrib.actor.Platform.PlatformConfigurator

trait ActuatorManagementBehavior extends BasicActorBehavior

class AggregateApplicationActor extends Actor

case class AggregateApplicationSettings extends Product with Serializable

trait AggregateComputation[T] extends Incarnation.ExecutionTemplate with FieldCalculusSyntax with Serializable

trait AggregateInterpreter extends Incarnation.ExecutionTemplate with FieldCalculusSyntax with Serializable

trait AggregateProgram extends AggregateInterpreter

trait AggregateProgramSchema extends ProgramSchema

sealed trait AsyncExecStrategy extends distrib.Platform.ExecStrategy

class AutonomousScheduler extends Actor with distrib.actor.Platform.GenericScheduler with PeriodicBehavior

abstract class BaseContextImpl extends core.Engine.Context with core.Engine.ContextOps with Serializable

trait BaseDeviceActor extends Actor

trait BaseNbrManagementBehavior extends BasicActorBehavior

class Basic3DSpace[E] extends space.BasicSpatialAbstraction.MutableMetricSpace[E] with EuclideanStrategy with Serializable

class BasicAggregateInterpreter extends AggregateInterpreter

class BasicDeviceManager extends distrib.actor.Platform.AbstractDeviceManager with Serializable

class BasicMain extends distrib.Platform.SystemMain

trait Builtins extends AnyRef

type CONTEXT = Context with ContextOps

class CmdLineMain extends distrib.Platform.SystemMain

trait CodeMobilitySupportBehavior extends AnyRef

type ComputationContext = CONTEXT with ComputationContextContract

trait ComputationContextContract extends AnyRef

type ComputationExport = EXPORT with ComputationExportContract

trait ComputationExportContract extends AnyRef

trait ConfigurableSettings[S] extends AnyRef

trait Constructs extends AnyRef

trait ConstructsSemantics extends core.Semantics.Constructs

trait Context extends AnyRef

class ContextImpl extends BaseContextImpl

trait ContextOps extends AnyRef

type D = Double

type DataFactory = DataFactoryContract

trait DataFactoryContract extends AnyRef

case class DelayedDeviceExecStrategy extends distrib.Platform.DeviceExecStrategy with Product with Serializable

case class DeploymentSettings extends Product with Serializable

case class DevInfo extends Product with Serializable

case class DeviceConfigurationSettings extends Product with Serializable

case class DeviceDelegated extends distrib.Platform.ExecScope with Product with Serializable

sealed trait DeviceExecStrategy extends AnyRef

type DeviceManager = BasicDeviceManager

trait DistanceStrategy extends AnyRef

trait DistributedPlatformFactory extends AnyRef

trait DynamicComputationDeviceActor extends distrib.actor.Platform.ComputationDeviceActor with distrib.actor.Platform.DynamicDeviceLifecycleBehavior

trait DynamicDeviceLifecycleBehavior extends LifecycleBehavior with PeriodicBehavior

type EXECUTION = AggregateInterpreter

type EXPORT = Export with ExportOps with Serializable

case class EmptyProfileSettings extends distrib.Platform.ConfigurableSettings[distrib.Platform.EmptyProfileSettings] with Product with Serializable

class EngineFactory extends core.Engine.Factory with Serializable

trait EuclideanStrategy extends space.BasicSpatialAbstraction.DistanceStrategy with space.BasicSpatialAbstraction.NeighbouringRelation with Serializable

sealed trait ExecScope extends AnyRef

sealed trait ExecStrategy extends AnyRef

case class ExecutionSettings extends Product with Serializable

trait ExecutionTemplate extends (core.Semantics.CONTEXT) ⇒ core.Semantics.EXPORT with ConstructsSemantics with ProgramSchema

trait Export extends AnyRef

class ExportImpl extends core.Engine.Export with core.Engine.ExportOps with Serializable

trait ExportOps extends AnyRef

type FACTORY = Factory

trait Factory extends AnyRef

trait FieldCalculusSyntax extends Incarnation.Constructs with Incarnation.Builtins

class FileMain extends distrib.Platform.SystemMain

sealed case class FoldHood[A] extends Slot with Product with Serializable

sealed case class FunCall[A] extends Slot with Product with Serializable

trait GenericScheduler extends AnyRef

case class Global extends distrib.Platform.ExecScope with Product with Serializable

type ID = Int

type LSNS = String

type LSensorName = String

trait MetricSpace[E] extends space.MetricSpatialAbstraction.Space[E] with DistanceStrategy

trait MissingCodeManagementBehavior extends BasicActorBehavior

case class MsgAddActuator extends Product with Serializable