dk.rode.thesis.abstractfactory
Class PrototypicalAbstractionFactory<E>

java.lang.Object
  dk.rode.thesis.abstractfactory.PrototypicalAbstractionFactory<E>

Type Parameters:

E - The type of values delivered by the created abstractions.

All Implemented Interfaces:

AbstractionFactory<E>

@ParticipantUsage(value="ConcreteProduct",
                  type=SequenceAbstraction.class)
@Participant(value="ConcreteFactory")
public class PrototypicalAbstractionFactory<E>
extends Object
implements AbstractionFactory<E>

A prototypical abstraction factory creates sequence abstractions based on a prototype supplied at construction time.

Created abstractions will be initialised if the prototype supplied at construction time was initialised.

This factory is thread-safe.

Author:

Gunni Rode / rode.dk

See Also:

MemorizableAbstractionFactory, SynchronisedAbstractionFactory

Field Summary

private SequenceAbstraction<E>

prototype The prototypical sequence abstraction to use.

Constructor Summary

PrototypicalAbstractionFactory(SequenceAbstraction<E> prototype)
Constructor.

Method Summary

SequenceAbstraction<E>	createAbstraction() Creates a new sequence abstraction instance.
String	toString() Returns the string representation of this factory.

Methods inherited from class java.lang.Object

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

Field Detail

prototype

private final SequenceAbstraction<E> prototype

The prototypical sequence abstraction to use.

The abstraction may or may not have been initialised.

Never null.

Constructor Detail

PrototypicalAbstractionFactory

public PrototypicalAbstractionFactory(SequenceAbstraction<E> prototype)

Constructor.

The abstraction supplied as prototype is copied, so modifying it from an external context will not affect this factory (unless prototype is a singleton). This factory will not change prototype.

Parameters:

prototype - The prototypical abstraction to use; cannot be null.

Throws:

NullPointerException - If prototype is null.

Method Detail

createAbstraction

public SequenceAbstraction<E> createAbstraction()

Description copied from interface: AbstractionFactory

Creates a new sequence abstraction instance.

Depending on the actual factory implementation, the returned abstraction may be initialised. If so, no implementation need be set.

Specified by:

createAbstraction in interface AbstractionFactory<E>

Returns:

A new sequence abstraction instance; never null.

toString

public String toString()

Returns the string representation of this factory.

Overrides:

toString in class Object

Returns:

The string representation; never null.