OMG DC Use Cases

Date: June 21,2004
Version: 0.1
Status: draft
Authors: Didier Donsez (UJF-IMAG-LSR-ADELE), ()
Contributors:

1 Introduction

This document intends to illustrate the D & C specification on three use cases of applications that are not component-based.
The application are:

Standalone Java applications
Linux applications (or platforms)
OSGi dynamic applications

Please send comments to the Deployment Mailing List: deployment@objectweb.org

Standalone Java applications

Standalone Java applications are usually provisionning as a set of Jar files. An application could be described according to two different ways : the manifest file and the JNLP descriptor

Manifest-based Applications

Application description

The manifest of the "main" jar file contains a Main-Class entry that identifies the main class and a ClassPath entry that lists the jar files required by the jar file. Similary, those jar files can required other jar files in turns.

Examples

Manifest file of jar file a.jar:

ClassPath: b.jar, c.jar
Main-Class: com.mysite.app.MyMin

Manifest file of jar file b.jar:

ClassPath: natlib-win.jar

Manifest file of jar file c.jar:

ClassPath: rsc.jar, rsc-fr.jar

OMG D & C description

TODO

JLNP Applications

Application description

On the other hand, the application can be described by a JNLP descriptor (JSR56). The JNLP deployer (otherwise named JNLP client) deploys the application according the descriptor and ignores all manifest entries in a JAR file specified with the jar element, except in some cases (cf JNLP spec 1.0.1 4.3.1).

Example


	
		Draw!
		My Web Company
		
		
	
	
		
		
		
		
		
			
		
		
		
	
	
		
	
	
		
	
	
		Arg1
		Arg2

OMG D & C description

TODO

Linux applications

Application description

TODO

Examples

TODO

OMG D & C description

TODO

OSGi dynamic applications

Application description

TODO

Examples

Manifest file of bundle main.jar:

Import-Package: a, b
Import-Service: a.A, b.B

Manifest file of bundle a-1.0.0.jar:

Import-Package: a; specification-version=1.0.0

Manifest file of bundle a-2.0.0.jar:

Import-Package: a; specification-version=2.0.0

Manifest file of bundle as.jar:

Import-Package: a ; specification-version=1.5.0, n
Export-Service: a.A

Manifest file of bundle as.jar:

Import-Package: a ; specification-version=1.5.0, n, inexisting
Export-Service: a.A

Manifest file of bundle bs.jar:

Import-Package: b, n
Export-Service: b.B

Manifest file of jar file nw.jar:

Export-Package: n
Bundle-NativeCode: natlib-win.jar

Manifest file of jar file nl.jar:

Export-Package: n
Bundle-NativeCode: natlib-linux.jar

OMG D & C description

TODO

References

JAVA NETWORK LAUNCHING PROTOCOL & API SPECIFICATION (JSR-56), VERSION 1.0.1