diva.pod

Class Protocol

java.lang.Object

diva.pod.Protocol

Direct Known Subclasses:

Protocol.Graph, Protocol.Layout

public abstract class Protocol
extends Object

A Protocol is a reification of the concept of protocol, which underlies the connection of Generators, Pods, and Views. Each supported protocol will have a corresponding class, and this class is expected to be implemented as a singleton (ie it must have a private constructor).

The protocols implemented by the diva.pod package are defined as inner classes here, so that nice names of the form Protocol.Graph result. However, additional protocols can be created simply by subclassing Protocol.

Version:

$Revision: 1.2 $

Author:

John Reekie

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	Protocol.Graph The Graph protocol.
class	Protocol.Layout The Layout protocol.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Protocol(String name) Subclasses must have a private constructor that calls this constructor with the protocol name.

Method Summary

Modifier and Type	Method and Description
abstract Protocol	getInstance() Get the single instance of this protocol class.
String	getName() Get the name of this protocol.

Methods inherited from class java.lang.Object

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

Constructor Detail

Protocol

protected Protocol(String name)

Subclasses must have a private constructor that calls this constructor with the protocol name.

Method Detail

getName

public String getName()

Get the name of this protocol.

getInstance

public abstract Protocol getInstance()

Get the single instance of this protocol class.