Free object oriented software for linux

Php Object Generator on short POG is an open source PHP code generator which automatically generates clean & tested Object Oriented code for your PHP4/PHP5 application.
Over the years, we realized that a large portion of a PHP programmers time is wasted on repetitive coding of the Database Access Layer of an application simply because different applications require different objects.
By generating PHP objects with integrated CRUD methods, POG gives you a head start in any project and saves you from writing and testing SQL queries. The time you save can be spent on more interesting areas of your project. But dont take our word for it, give it a try!
Main features:
- Generates clean & tested code
- Generates CRUD methods
- Compatible with PHP4 & PHP5
- Compatible with PDO
- Free for personal use
- Free for commercial use
- Open Source
Enhancements:
- POG now fetches result set arrays where possible (which provides a big performance boost).
- Data encoding is handled within the database.
- A new plugin interface is used.
- A data encoding sanity check was added to setup.
- Siblings can be deleted without deleting children.
- Getlist() accepts column names as filters.
- Getlist(), GetChild(), and GetSibling() return all results if no arguments are passed.
- A database wrapper class for PDO was added.
- The PDO performance was improved.
- The plugin API, POG base API, and database API were made uniform to prevent plugin versioning.

Undisposable Clients project provides easy-to-use API kits for using Undisposable.org in various programming languages.
Main features:
- Protects site owners biggest assets; userbase and emails
- Prevents userbase contamination by fake accounts
- As critical as email validity check
- Stops people registering your services with disposable email accounts like jetable.org, pookmail
- Detects public accounts (spread from sites like bugmenot.com) and bans them
- Working principle is similar to spam blacklists like spamhaus.org; power of masses
- Totally free, your donations are welcome
How to use it
Check if there is an API kit for your programming language, if there isnt, connect to our servers manually.
Add a few extra lines to your email validation function which is called from your member registration page. The following is an example in PHP language:
..
function checkEmail($email) {
include_once("undorg/php/rest/undisposable.inc.php"); // include the API kit
if(!undorg_isDisposableEmail($email)) { // check if disposable email
.. // old procedures remain here
} // add this line to close the conditional statement
}
..
?>
Thats all. Very simple...
API kits:
PHP
Supports XML-RPC, REST and PHP serialiation. Stable
@TODO: make it object oriented, test PHP5
Python
Supports XML-RPC. Stable
@TODO: make it object oriented, more protocols
Perl
Supports XML-RPC. Beta
@TODO: test it, make it object oriented, more protocols
Java
Supports XML-RPC. Alpha
@TODO: test it, make it object oriented, more protocols
We need your support for clients in other languages.
Enhancements:
- The isValidEmail function was added for PHP and Python.
- Valid RFC and TLD checks are made in real time, as well blacklist queries against disposable email addressing and public accounts from sites similar to bugmenot.com.

Porcupine is a web application server that provides an object oriented framework for developing web applications rapidly.

Many of the tasks required for building web applications as you know them, are either eliminated or simplified. For instance, when developing a Porcupine application you dont have to design a relational database. You only have to design and implement your business objects as classes, using the building blocks provided by the framework (datatypes). Porcupine integrates a native object database, no mapping required.

Another tedious task for web applications is the interface design, and the constraints imposed by HTML. QuiX, the servers integrated XUL motor, simplifies the interface design process. All you have to do is describe your applications interface in XML and write the appropriate event handlers. You dont have to waste time and money on widget implementations. QuiX comes with a variety of ready to use widgets, accelerating the development process.

Generally, every Porcupine application consists of three distinct layers. The first is the business layer consisting of the business objects which encapsulate the business logic.
The second layer binds the HTTP protocol with the first layers business objects. This layer is implemented using Python Server Pages or Servlets. If using XML-RPC, one common approach is to directly map an XML-RPC method to a business objects method.
The third layer, the presentation layer, usually consists of XML UI definitions and JavaScript event handlers.

The first two layers are executed server side and the third layer is executed on the client (browser).

JDOInstruments is an embedded object oriented database programmed in java, it is also an implementation of Suns Java Data Objects (JDO) specification for the transparent persistence of Java objects.
Because of this, it doesnt need a JDBC driver or a relational database. JDOInstruments uses its own object store thus it allows storage and retrieval of persistent data with little work from you.
It is integrated with Netbeans IDE (via Plugin module) allowing developers to build pure object-oriented systems.
It is free and Our license is GNU LGPL providing the code and executables (JARs) free of charge. You are free to use JDOInstruments in your projects.
Main features:
- Byte-Code Enhancement of classes
- Byte-Code Compatibility
- Datastore identity
- Optimistic Transaction
- Nontransactional Read
- Retain values
- Restore values
- Second Class PersistenceCapable objects
- J2EE Integration
- Query (JDOQL)
- Index
- Schema Evolution

HTML::Tree::AboutObjects is an article: "Users View of Object-Oriented Modules".

SYNOPSIS

# This an article, not a module.

The following article by Sean M. Burke first appeared in The Perl Journal #17 and is copyright 2000 The Perl Journal. It appears courtesy of Jon Orwant and The Perl Journal. This document may be distributed under the same terms as Perl itself.

FlexiRecord is a ruby library for object oriented access to databases. Each table is represented by a class, each row of that table is represented by an object of that class.
This library is especially aimed to properly support database transactions. By now only PostgreSQL (version 8.2 or higher) is supported as a backend.
Please note that this is an alpha release. This means the library is incomplete and mostly untested yet. Use it at your own risk.
FlexiRecord is free for private and commercial use, no warranty, subject to the license agreement in the software.
Enhancements:
- Database connections in the connection pool are now re-established if they are broken.

NetCalendar is a network capable and mostly UNIX /usr/bin/calendar database compatible Calendar application programmed in Java.

NetCalendars initial motivaion was a programming project at the Aachen University of Applied Sciences for the object oriented programming class. But it became much more than just that!