Package org.moeaframework.core

Interface Stateful

All Known Subinterfaces:

Algorithm, EpsilonBoxEvolutionaryAlgorithm, EvolutionaryAlgorithm

All Known Implementing Classes:

AbstractAlgorithm, AbstractEvolutionaryAlgorithm, AbstractPSOAlgorithm, AbstractSimulatedAnnealingAlgorithm, AdaptiveGridArchive, AdaptiveTimeContinuation, AdaptiveTimeContinuationExtension, AGEMOEAII, AlgorithmWrapper, AMOSA, CheckpointExtension, Checkpoints, CMAES, DBEA, DifferentialEvolution, EpsilonBoxDominanceArchive, EpsilonMOEA, EpsilonNSGAII, EpsilonProgressContinuation, EpsilonProgressContinuationExtension, EvolutionStrategy, Extensions, FitnessBasedArchive, GDE3, GeneticAlgorithm, IBEA, InstrumentedAlgorithm, InstrumentedExtension, MOEAD, MSOPS, MSOPSRankedPopulation, NondominatedPopulation, NondominatedSortingPopulation, NSGAII, NSGAIII, OMOPSO, PAES, PeriodicAction, PeriodicExtension, PESA2, Population, RandomSearch, ReferencePointNondominatedSortingPopulation, ReferenceVectorGuidedPopulation, RepeatedSingleObjective, RuntimeCollectorExtension, RVEA, SimulatedAnnealing, SingleObjectiveEvolutionaryAlgorithm, SMPSO, SMSEMOA, SPEA2, UNSGAIII, VEGA

public interface Stateful

Interface for objects that can save and load their state.

Method Summary

Modifier and Type	Method	Description
static void	checkTypeSafety(ObjectInputStream stream, Object object)	Validates the type safety information embedded in the object stream.
default void	loadState(ObjectInputStream stream)	Loads the state of this object from the stream.
default void	saveState(ObjectOutputStream stream)	Writes the state of this object to the stream.
static void	writeTypeSafety(ObjectOutputStream stream, Object object)	Writes a field into the object stream that can be validated using checkTypeSafety(ObjectInputStream, Object).

Method Details

saveState

default void saveState(ObjectOutputStream stream)
                throws IOException

Writes the state of this object to the stream. The order that objects are written to the stream is important. We recommend first calling super.saveState(stream) followed by writing each field.

Parameters:

stream - the stream

Throws:

IOException - if an I/O error occurred

loadState

default void loadState(ObjectInputStream stream)
                throws IOException,
ClassNotFoundException

Loads the state of this object from the stream. The order for reading objects from the stream must match the order they are written to the stream in saveState(ObjectOutputStream).

Parameters:

stream - the stream

Throws:

IOException - if an I/O error occurred

ClassNotFoundException - if the stream referenced a class that is not defined

writeTypeSafety

static void writeTypeSafety(ObjectOutputStream stream,
 Object object)
                     throws IOException

Writes a field into the object stream that can be validated using checkTypeSafety(ObjectInputStream, Object).

Parameters:

stream - the stream

object - the stateful object

Throws:

IOException - if an I/O error occurred

checkTypeSafety

static void checkTypeSafety(ObjectInputStream stream,
 Object object)
                     throws IOException,
ClassNotFoundException

Validates the type safety information embedded in the object stream.

Parameters:

stream - the stream

object - the stateful object

Throws:

IOException - if an I/O error occurred or the type safety check failed

ClassNotFoundException - if the stream referenced a class that is not defined