Package org.gcube.informationsystem.types.knowledge

Class TypesKnowledge

java.lang.Object

org.gcube.informationsystem.types.knowledge.TypesKnowledge

public class TypesKnowledge
extends Object

Manages the knowledge about types.

Author:

Luca Frosini (ISTI - CNR)

Field Summary

Fields

Modifier and Type	Field	Description
protected Calendar	creationTime	The creation time.
static long	DEFAULT_EXPIRING_TIMEOUT	The default expiring timeout.
protected Calendar	expiringTime	The expiring time.
int	expiringTimeout	The expiring timeout.
protected boolean	initialized	A flag indicating whether the knowledge has been initialized.
protected ModelKnowledge<Type,TypeInformation>	modelKnowledge	The model knowledge.
protected TypesDiscoverer<Type>	typesDiscoverer	The types discoverer.

Constructor Summary

Constructors

Constructor	Description
TypesKnowledge()	Constructs a new TypesKnowledge.

Method Summary

Modifier and Type	Method	Description
void	discover()	This method do nothing if TypesDiscoverer was not set.
static TypesKnowledge	getInstance()	Returns the singleton instance of this class.
ModelKnowledge<Type,TypeInformation>	getModelKnowledge()	Returns the model knowledge.
TypesDiscoverer<Type>	getTypesDiscoverer()	Returns the types discoverer.
protected void	init(boolean forceReinitialization)	Initializes the knowledge.
void	renew()	Force reinitialization of
void	setExpiringTimeout(int expiringTimeout)	Sets the expiring timeout.
void	setTypesDiscoverer(TypesDiscoverer<Type> typesDiscoverer)	Sets the types discoverer.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_EXPIRING_TIMEOUT

public static final long DEFAULT_EXPIRING_TIMEOUT

The default expiring timeout.

initialized

protected boolean initialized

A flag indicating whether the knowledge has been initialized.

expiringTimeout

public int expiringTimeout

The expiring timeout.

creationTime

protected Calendar creationTime

The creation time.

expiringTime

protected Calendar expiringTime

The expiring time.

modelKnowledge

protected ModelKnowledge<Type,TypeInformation> modelKnowledge

The model knowledge.

typesDiscoverer

protected TypesDiscoverer<Type> typesDiscoverer

The types discoverer.

Constructor Detail

TypesKnowledge

public TypesKnowledge()

Constructs a new TypesKnowledge.

Method Detail

getInstance

public static TypesKnowledge getInstance()

Returns the singleton instance of this class.

Returns:

The singleton instance.

setExpiringTimeout

public void setExpiringTimeout(int expiringTimeout)

Sets the expiring timeout.

Parameters:

expiringTimeout - The expiring timeout in milliseconds.

getTypesDiscoverer

public TypesDiscoverer<Type> getTypesDiscoverer()

Returns the types discoverer.

Returns:

The types discoverer.

setTypesDiscoverer

public void setTypesDiscoverer(TypesDiscoverer<Type> typesDiscoverer)

Sets the types discoverer.

Parameters:

typesDiscoverer - The types discoverer.

getModelKnowledge

public ModelKnowledge<Type,TypeInformation> getModelKnowledge()

Returns the model knowledge.

Returns:

The model knowledge.

init

protected void init(boolean forceReinitialization)

Initializes the knowledge.

Parameters:

forceReinitialization - A flag indicating whether to force reinitialization.

discover

public void discover()

This method do nothing if TypesDiscoverer was not set. Otherwise initialized the ModelKnowledge if it was not already initialized. To enforce rediscovery use renew method.

renew

public void renew()

Force reinitialization of