org.apache.naming.factory

Class FactoryBase

java.lang.Object

org.apache.naming.factory.FactoryBase

All Implemented Interfaces:

ObjectFactory

Direct Known Subclasses:

EjbFactory, ResourceEnvFactory, ResourceFactory, TransactionFactory

public abstract class FactoryBase
extends Object
implements ObjectFactory

Abstract base class that provides common functionality required by sub-classes. This class exists primarily to reduce code duplication.

Constructor Summary

Constructors

Constructor and Description
FactoryBase()

Method Summary

Modifier and Type	Method and Description
protected abstract ObjectFactory	getDefaultFactory(Reference ref) If a default factory is available for the given reference type, create the default factory.
protected abstract Object	getLinked(Reference ref) If this reference is a link to another JNDI object, obtain that object.
Object	getObjectInstance(Object obj, Name name, Context nameCtx, Hashtable<?,?> environment) Creates a new object instance.
protected abstract boolean	isReferenceTypeSupported(Object obj) Determines if this factory supports processing the provided reference object.

Methods inherited from class java.lang.Object

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

Constructor Detail

FactoryBase

public FactoryBase()

Method Detail

getObjectInstance

public final Object getObjectInstance(Object obj,
                                      Name name,
                                      Context nameCtx,
                                      Hashtable<?,?> environment)
                               throws Exception

Creates a new object instance.

Specified by:

getObjectInstance in interface ObjectFactory

Parameters:

obj - The reference object describing the object to create

Throws:

Exception

isReferenceTypeSupported

protected abstract boolean isReferenceTypeSupported(Object obj)

Determines if this factory supports processing the provided reference object.

Parameters:

obj - The object to be processed

Returns:

true if this factory can process the object, otherwise false

getDefaultFactory

protected abstract ObjectFactory getDefaultFactory(Reference ref)
                                            throws NamingException

If a default factory is available for the given reference type, create the default factory.

Parameters:

ref - The reference object to be processed

Returns:

The default factory for the given reference object or null if no default factory exists.

Throws:

NamingException - If the default factory cannot be craeted

getLinked

protected abstract Object getLinked(Reference ref)
                             throws NamingException

If this reference is a link to another JNDI object, obtain that object.

Parameters:

ref - The reference object to be processed

Returns:

The linked object or null if linked objects are not supported by or not configured for this reference object

Throws:

NamingException - Error accessing linked object