Personalities   

    PJC

    Description

  Requirements

    Download

    Installation

    Compiling PJC

    Version History

    Enhancements/Bugs

    Examples
 

PJC
The Personalities/J Compiler

by

Diego Rodrigo (d.rodrigo@computer.org)
Daniel Gandara (danielgandara@mail.com)
Luis Blando (lblando@gte.com)

 

Description 


The Personalities/J compiler translates Personalities/J languaje into Java code. Afterwards, this generated code must be compiled into Java bytecode with any Java compiler. 

Personalities are new design entities that help object-oriented designers during all the phases of the software lifecycle, providing facilities for Role-Modeling. For further information on Personalities, follow the link to the Personalities page. 

The current version of the compiler supports only static Personalities. We are working on a next full featured release which will support dynamic Personalities and Personalities inheritance. It will also have a better semantic analyzer along with some other optimizations.
 

What you need to run it 

Note: You only need the complete set of tools if you want to modify or enhance PJC. If you only want to run it, demjava.jar (which can be found in the Demeter/Java distribution) is enough.


Getting PJC

PJC is distributed in the 'gzip' format. In order to uncompress the distribution you will need the gzip utility which is freely available for Unix systems or the WinZip utility, which is available for Windows systems. You can get the latter from http://www.winzip.com

The following versions are available online:

Installation of PJC

For installation information, please browse the INSTALL file of the latest distribution.

Compilation of PJC

For compilation information, please browse the COMPILE file of the latest distribution.

Version history of PJC

For the changes history, please browse the CHANGES file of the latest distribution.

To-Do List of PJC

For a list of the bugs and/or enhancements planned for PJC, please browse the TO-DO file of the latest distribution.

 

An example

This was the first example in Personalities' life : the animal hierarchy. It's very interesting for educational purposes, because of the relationships between the animals and their roles. 

(you need just one of the above files)
  • Unzip it in a directory and then do:
    • pjc *.pj
    • javac *.java
    • java Zoo

Take a look at the original P/J code , and then at the generated Java code. You should be able to identify how each personality was translated into two files : an interface : <personality.java, and a class <personality$Ego.java . You can also notice how personifying classes have changed (pj - java), with their personalities' upstream methods added.
 
 
[Diego Rodrigo - Daniel Gandara - Luis Blando]