JPublish is a powerful web publishing system designed to ensure a clean separation of developer roles. JPublish includes support for multiple templating engines, including Jakarta Apache's Velocity, FreeMarker and WebMacro. JPublish supports numerous scripting languages including Python, BeanShell, and JavaScript. JPublish is modular and provides for easy extensibility.
FreeMarker is a "template engine"; a generic tool to generate text output (anything from HTML or RTF to autogenerated source code) based on templates. It is 100% written in Java.
FreeMarker is designed to be practical for the generation of HTML Web pages, particularly by servlet-based applications following the MVC (Model View Controller) pattern. The idea behind using the MVC pattern for dynamic Web pages is that you separate the designers (HTML authors) from the programmers. Everybody works on what they are good at. Designers can change the appearance of a page without programmers having to change or recompile code, because the application logic (Java programs) and page design (FreeMarker templates) are separated. Templates do not become polluted with complex program fragments.
BeanShell is a small, free, embeddable, Java source interpreter with object scripting language features, written in Java. BeanShell executes standard Java statements and expressions, in addition to obvious scripting commands and syntax. BeanShell supports scripted objects as simple method closures like those in Perl and JavaScript(tm).
You can use BeanShell interactively for Java experimentation and debugging or as a simple scripting engine for your applications. In short: BeanShell is a dynamically interpreted Java, plus some useful stuff. Another way to describe it is to say that in many ways BeanShell is to Java as Tcl/Tk is to C: BeanShell is embeddable - You can call BeanShell from your Java applications to execute Java code dynamically at run-time or to provide scripting extensibility for your applications.
Jetty is a 100% Java HTTP Server and Servlet Container. This means that you do not need to configure and run a separate web server (like Apache) in order to use java, servlets and JSPs to generate dynamic content. Jetty is a fully featured web server for static and dynamic content. Unlike separate server/container solutions, this means that your web server and web application run in the same process, without interconnection overheads and complications. Furthermore, as a pure java component, Jetty can be simply included in your application for demonstration, distribution or deployment. Jetty is available on all Java supported platforms.
JOTM is an open source transaction manager implemented in Java.
It supports several transaction models and specifications providing transaction support
for clients using a wide range of middleware platforms (J2EETM, CORBA, Web Services).
JOTM is an ObjectWeb project licensed under the BSD-style license.
For more than four years, JOTM has been the transaction manager of JOnAS, a J2EE server.
In April 2002, the ObjectWeb Consortium decided to extract the transaction manager
from JOnAS and make it one of its “key projects” promoting interoperability and
collaboration between ObjectWeb projects and other open source initiatives that require
transactions.
XAPool is an open source XA Pool! It allows to pool objects, JDBC connections and XA connections. It comes from Enhydra application server from Lutris. Now the project is hosted by the ObjectWeb consortium and managed by Experlog. It exports a DataSource (with a pool) which is a factory of PooledConnection, a XADataSource (with a pool) which is a factory of XAConnection (connections that can be used in distributed transactions). XAPool has been successfully tested with MySQL, PostgreSQL, Oracle, SAPdb, MS SQL and InstantDB databases.
DataVision is an Open Source reporting tool similar to Crystal Reports. Reports can be designed using a drag-and-drop GUI. They may be run, viewed, and printed from the application or exported as HTML, XML, PDF, LaTeX2e, DocBook, or tab- or comma-delimited text files. The output files produced by LaTeX2e and DocBook can in turn be used to produce PDF, text, HTML, PostScript, and more.
DataVision is written in Java and runs almost anywhere. It can generate reports from databases or text data files. Any database with an available JDBC driver should work: Oracle, PostgreSQL, MySQL, Informix, hsqldb, Microsoft Access, Progress, and more. Columns read from text files can be separated by any character.
Report descriptions are stored as XML files. This means you can not only use the DataVision GUI but you may also edit reports using your favorite text editor.
JasperReports is a powerful open source Java reporting tool that has the ability to deliver rich content onto the screen, to the printer or into PDF, HTML, XLS, CSV and XML files. It is entirely written in Java and can be used in a variety of Java enabled applications, including J2EE or Web applications, to generate dynamic content.
Its main purpose is to help creating page oriented, ready to print documents in a simple and flexible manner.
Weka is a collection of machine learning algorithms for data mining tasks. The algorithms can either be applied directly to a dataset or called from your own Java code. Weka contains tools for data pre-processing, classification, regression, clustering, association rules, and visualization. It is also well-suited for developing new machine learning schemes. Weka is open source software issued under the GNU General Public License.
The Apache Software Foundation provides support for the Apache community of open-source software projects. The Apache projects are characterized by a collaborative, consensus based development process, an open and pragmatic software license, and a desire to create high quality software that leads the way in its field.
The goals of the Apache XML Project (part of The Apache Software Foundation) are to provide commercial-quality standards-based XML solutions that are developed in an open and cooperative fashion, to provide feedback to standards bodies (such as IETF and W3C) from an implementation perspective, and to be a focus for XML-related activities within Apache projects. The Apache XML Project currently consists of Xerces ,
Xalan ,
Axis ,
FOP ,
Batik
and each focused on a different aspect of XML.
The Jakarta Project creates and maintains open source solutions on the Java platform for distribution to the public at no charge. Jakarta products are developed by and distributed through various subprojects, which consist of Ant,
BSF,
Commons,
Log4J,
Lucene,
ORO,
POI.
OpenJMS is an open source implementation of Sun Microsystems's Java Message Service API 1.0.2 Specification, which features
Point-to-Point and publish-subscribe messaging models,
guaranteed delivery of messages,
synchronous and asynchronous message delivery,
persistence using JDBC,
local transactions,
message filtering using SQL92-like selectors,
authentication,
administration GUI,
XML-based configuration files,
in-memory and database garbage collection,
automatic client disconnection detection,
Applet support,
integrates with Servlet containers such as Jakarta Tomcat,
support for RMI, TCP, HTTP and SSL protocol stacks and
support for large numbers of destinations and subscribers.
MaxDB by MySQL is a re-branded and enhanced version of SAP DB, SAP AG's open source database. MaxDB is a heavy-duty, SAP-certified open source database that offers high availability, scalability and a comprehensive feature set. MaxDB complements the MySQL database server, targetted for large mySAP ERP environments and other applications that require maximum enterprise-level database functionality.
The PostgreSQL Global Development Group is a community of companies and people co-operating to drive the development of PostgreSQL, the worlds most advanced Open Source database software.
The PostgreSQL software itself had its beginnings in 1986 inside the University of California at Berkeley as a research prototype, and in the 16 years since has moved to its now globally distributed development model, with central servers based in Canada.
Hypersonic SQL is a relational database engine written in Java, with a JDBC driver, supporting a rich subset of ANSI-92 SQL (BNF tree format). It offers a small (less than 160k), fast database engine which offers both in memory and disk based tables. Embedded and server modes are available. Additionally, it includes tools such as a minimal web server, in-memory query and management tools (can be run as applets) and a number of demonstration examples.
