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DataML

DataML is a web server extension that could be integrated in any JAVA enanbled web server. It provides a simple API to rapidly generate dynamic data driven charts, graphs and custom content, which will run on any standard Internet browser.

DataML is a markup language designed to facilitate the creation of simple dynamic data driven reports with only few lines of XML code.

As a software programmer, Tanwani Anyangwe spent most of his professional career building database driven applications that run over some kind of network. Early in his career, he came to realize that although user requirements and business rules might always look different, the final products always had some similaries.

The application had to get data from a relational database
This data had to be intepreted, (formated in a certain way), so as to convey some kind of information to the reader (Person/object using the application).
The requesting user (person, application or service) had to have some kind of rights/previledges inorder to get this data/information.
This data had to be current
The information derived had to have a way to query for more information based on its identity

As Internet applications became more and more popular, he built his first DataML engine using CGI-PERL scripts. It wasn't at all object oriented (more than 80% - from about 8 weeks to less than weeks including system documentations), He later built a version to work for Microsoft Active Server Pages (ASP) this worked even better. But with the advent of Java Servlets and XML technologies, he decided to build (Application Programming Interface) that other programmers could understand.

DataML v1.0 Specification

An introduction to the Data Markup Language (DataML). Build dynamic, data driven, secure and scalable web reporting applications with only a few lines of XML code

Case Study

Setting Up you DataML Environment

The Java Environment: How to set up an environment that can run the Java Runtimes and interpreter the Java Servlet engine
The DataML Environment: How to set up up the DataML server extension (dataml.jar) in your Java runtime extensions folder, and installing your a servlet (such as DataMLServlet) in your web application's servlet folder.

Database Connection

Create an ODBC data source for the pubs database and name it "pubs" http://msdn.microsoft.com/library/en-us/vdbref/html/dvhowcreatingmachinedsn.asp and http://java.sun.com/products/jdbc/ for the Java Database Connections tutorials

The Source Files - Analysis

Create a simple Servlet

The source for a Servlet that processes DataML pages

Running your Examples

Applet Index
(sorted alphabetically)
A B C D E F G H I J K
L M N O P Q R S T U
V W X Y Z #s

The Java Source
(applets w/source code)
A B C D E F G H I J K
L M N O P Q R S T U
V W X Y Z

How to Add Java Applets to Your Site

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