com.anji.persistence
Class FilePersistence

java.lang.Object
  com.anji.persistence.FilePersistence

All Implemented Interfaces:

Persistence, Configurable

public class FilePersistence
extends java.lang.Object
implements Persistence

Simple file-based implementation of persistence layer. All files are stored in a file named baseDir/type/type+key. All objects stores must implement XmlPersistable.type is derived from XmlPersistable.getXmlRootTag(), and key is derived from XmlPersistable.getId().

Author:

Philip Tucker

Field Summary

static java.lang.String

BASE_DIR_KEY properties key, base directory for persistence storage

Fields inherited from interface com.anji.persistence.Persistence

PERSISTENCE_CLASS_KEY

Constructor Summary

FilePersistence()

Method Summary

static Chromosome	chromosomeFromXml(Configuration config, org.w3c.dom.Node chromNode)
static Chromosome	chromosomeFromXml(Configuration config, java.lang.String xml)
void	deleteChromosome(java.lang.String id) delete chromosome identified by by id
protected java.lang.String	fullPath(java.lang.String type, java.lang.String key) Construct full path of file based on type and key.
void	init(Properties props) See Parameter Details for specific property settings.
Chromosome	loadChromosome(java.lang.String id, Configuration config)
Genotype	loadGenotype(Configuration config) loads genotype as of latest generation in run
void	reset() remove all data from storage
void	startRun(java.lang.String aRunId) Begin run.
void	store(Activator a)
void	store(Chromosome c)
void	store(Run r)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BASE_DIR_KEY

public static final java.lang.String BASE_DIR_KEY

properties key, base directory for persistence storage

See Also:

Constant Field Values

Constructor Detail

FilePersistence

public FilePersistence()

Method Detail

init

public void init(Properties props)

See Parameter Details for specific property settings.

Specified by:

init in interface Persistence

Specified by:

init in interface Configurable

Parameters:

props - configuration parameters

fullPath

protected java.lang.String fullPath(java.lang.String type,
                                    java.lang.String key)

Construct full path of file based on type and key.

Parameters:

type -

key -

Returns:

String resulting path

reset

public void reset()

Description copied from interface: Persistence

remove all data from storage

Specified by:

reset in interface Persistence

See Also:

Persistence.reset()

store

public void store(Chromosome c)
           throws java.lang.Exception

Specified by:

store in interface Persistence

Parameters:

c - chromosome to store

Throws:

java.lang.Exception

See Also:

Persistence.store(org.jgap.Chromosome)

store

public void store(Activator a)
           throws java.lang.Exception

Specified by:

store in interface Persistence

Parameters:

a - activator to store

Throws:

java.lang.Exception

See Also:

Persistence.store(com.anji.integration.Activator)

store

public void store(Run r)
           throws java.lang.Exception

Specified by:

store in interface Persistence

Parameters:

r - run to store

Throws:

java.lang.Exception

See Also:

Persistence.store(com.anji.run.Run)

chromosomeFromXml

public static Chromosome chromosomeFromXml(Configuration config,
                                           java.lang.String xml)
                                    throws java.lang.Exception

Parameters:

config -

xml -

Returns:

chromosome constructed from xml

Throws:

java.lang.Exception

chromosomeFromXml

public static Chromosome chromosomeFromXml(Configuration config,
                                           org.w3c.dom.Node chromNode)

Parameters:

config -

chromNode -

Returns:

chromosome constructed from xml

loadChromosome

public Chromosome loadChromosome(java.lang.String id,
                                 Configuration config)

Specified by:

loadChromosome in interface Persistence

Returns:

chromosome from persistence

See Also:

Persistence.loadChromosome(java.lang.String, org.jgap.Configuration)

deleteChromosome

public void deleteChromosome(java.lang.String id)
                      throws java.lang.Exception

Description copied from interface: Persistence

delete chromosome identified by by id

Specified by:

deleteChromosome in interface Persistence

Parameters:

id - id of chromosome to delete

Throws:

java.lang.Exception

See Also:

Persistence.deleteChromosome(java.lang.String)

loadGenotype

public Genotype loadGenotype(Configuration config)

Description copied from interface: Persistence

loads genotype as of latest generation in run

Specified by:

loadGenotype in interface Persistence

Returns:

genotype; null if there is no previous run

See Also:

Persistence.loadGenotype(org.jgap.Configuration)

startRun

public void startRun(java.lang.String aRunId)

Description copied from interface: Persistence

Begin run. All successive calls to this persistance object will be in the context of this run.

Specified by:

startRun in interface Persistence

See Also:

Persistence.startRun(java.lang.String)