org.norther.tammi.core.base
Class DefaultObjectFactory

java.lang.Object
  org.norther.tammi.core.base.Adaptee
      org.norther.tammi.core.base.DefaultObjectFactory

All Implemented Interfaces:

Serializable, NotificationBroadcaster, NotificationEmitter, Manageable, MBeanDelegate, ObjectFactory

Direct Known Subclasses:

AbstractCommonFactory, DefaultBaseQueryFactory, DefaultDOMBuilderFactory, DefaultJFCFactory, DefaultKeyStoreFactory, DefaultMessageDigestFactory, DefaultReportQueryFactory, DefaultSAXParserFactory, DefaultScripter, DefaultThreadFactory, DefaultVariableRegistry

public class DefaultObjectFactory
extends Adaptee
implements ObjectFactory

A default implementation of ObjectFactory acting also as an adapter to class specific implementations.

Author:

Ilkka Priha

See Also:

Serialized Form

Field Summary

Fields inherited from class org.norther.tammi.core.base.Adaptee

ADAPTEE_NOTIF_DESCRIPTION, ADAPTEE_NOTIFICATIONS

Fields inherited from interface org.norther.tammi.core.base.MBeanDelegate

ARRAY_TYPE, OBJECT_TYPE, PRIMITIVE_TYPE, STRING_TYPE

Constructor Summary

DefaultObjectFactory()
Constructs a new factory.

DefaultObjectFactory(ObjectFactory adaptee)
Constructs a new factory adapter.

Method Summary

Object	getInstance(String className) Gets an instance of a named class.
Object	getInstance(String className, Object[] params, String[] signature) Gets an instance of a named class.
Object	getInstance(String className, ObjectName loader) Gets an instance of a named class using a specified class loader.
Object	getInstance(String className, ObjectName loader, Object[] params, String[] signature) Gets an instance of a named class using a specified class loader.
boolean	isLoaderSupported(String className) Checks if specified class loaders are supported for a named class.

Methods inherited from class org.norther.tammi.core.base.Adaptee

addAdaptee, addNotificationListener, getAttributeSupport, getBroker, getCanonicalName, getDomain, getFactory, getLoader, getLog, getLog, getMBean, getMBeanServer, getNotificationInfo, getObjectName, getRegistrationTime, getSequenceNumber, hasListeners, isRegistered, postmanaged, premanaged, removeNotificationListener, removeNotificationListener, sendNotification, sendNotification, sendNotification, sendNotification, unmanaged, unregister

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultObjectFactory

public DefaultObjectFactory()

Constructs a new factory.

DefaultObjectFactory

public DefaultObjectFactory(ObjectFactory adaptee)

Constructs a new factory adapter.

Parameters:

adaptee - the adaptee MBean.

Method Detail

getInstance

public Object getInstance(String className)
                   throws ConstructionException

Description copied from interface: ObjectFactory

Gets an instance of a named class.

Specified by:

getInstance in interface ObjectFactory

Parameters:

className - the name of the class.

Returns:

the instance.

Throws:

ConstructionException - if construction fails.

getInstance

public Object getInstance(String className,
                          ObjectName loader)
                   throws ConstructionException

Description copied from interface: ObjectFactory

Gets an instance of a named class using a specified class loader.

Class loaders are supported only if the isLoaderSupported method returns true. Otherwise the loader parameter is ignored.

Specified by:

getInstance in interface ObjectFactory

Parameters:

className - the name of the class.

loader - the class loader.

Returns:

the instance.

Throws:

ConstructionException - if construction fails.

getInstance

public Object getInstance(String className,
                          Object[] params,
                          String[] signature)
                   throws ConstructionException

Description copied from interface: ObjectFactory

Gets an instance of a named class. Parameters for its constructor are given as an array of objects, primitive types must be wrapped with a corresponding class.

Specified by:

getInstance in interface ObjectFactory

Parameters:

className - the name of the class.

params - an array containing the parameters of the constructor.

signature - an array containing the signature of the constructor.

Returns:

the instance.

Throws:

ConstructionException - if construction fails.

getInstance

public Object getInstance(String className,
                          ObjectName loader,
                          Object[] params,
                          String[] signature)
                   throws ConstructionException

Description copied from interface: ObjectFactory

Gets an instance of a named class using a specified class loader. Parameters for its constructor are given as an array of objects, primitive types must be wrapped with a corresponding class.

Class loaders are supported only if the isLoaderSupported method returns true. Otherwise the loader parameter is ignored.

Specified by:

getInstance in interface ObjectFactory

Parameters:

className - the name of the class.

loader - the class loader.

params - an array containing the parameters of the constructor.

signature - an array containing the signature of the constructor.

Returns:

the instance.

Throws:

ConstructionException - if construction fails.

isLoaderSupported

public boolean isLoaderSupported(String className)

Description copied from interface: ObjectFactory

Checks if specified class loaders are supported for a named class.

Specified by:

isLoaderSupported in interface ObjectFactory

Parameters:

className - the name of the class.

Returns:

true if class loaders are supported, false otherwise.