Wednesday, April 21, 2004

Learn Java: Running external commands in Java applications: "I've read a lot about Java, but one of the things I rarely see discussed is how you should go about running external system commands. Of course, you probably don't read much about this because it takes away from the portability of Java applications. For instance, if you write a Java application on a Unix system, you might be interested in running the 'ps -ef' command, and reading the output of the command. For Unix systems this is great, but unfortunately, this same program won't work on a Windows system because the ps command isn't available on Windows.

Well, we're going to forget about portability for this article, and demonstrate a method that can be used to run system commands. We've received a lot of requests about this topic, so here goes. "
posted by J Slave 4/21/2004

Monday, April 12, 2004

Ashpool XML Database - A lightweight XML Database with JDBC Drivers Built in: "Ashpool is a lightweight XML Database written in Java(tm). It's goal is to use standard SQL92 syntax to query, add, update, and delete XML documents via a JDBC driver. The XML documents must hold to a table like structure. The reason for the table structure restriction is that SQL was designed to query table data not hierarchical data.

The Ashpool engine via JDBC drivers can be used to query any XML document; however, it is best used with documents that have a table like structure for the first three levels. The 'column' section of the table structure can contain integer, float, string, dateTime or XML fragments. Ashpool can be used to search for XML documents inside of an XML document (for example, as a serialized bean store), or used as a lightweight relational database.

All the while Ashpool's 'tables' are XML, so transmitting them over HTTP, running them through FOP, or editing them with a text editor are all possible - it other words you do not loose the power of XML.

Along with SQL, Ashpool also can use the Bean Scripting Fra"
posted by J Slave 4/12/2004

axion.tigris.org: "Axion is a small, fast, open source relational database system (RDBMS) supporting SQL and JDBC written in and for the Java programming language"
posted by J Slave 4/12/2004

Saturday, April 03, 2004

Dia a drawing programDia is designed to be much like the commercial Windows program 'Visio'. It can be used to draw many different kinds of diagrams. It currently has special objects to help draw entity relationship diagrams, UML diagrams, flowcharts, network diagrams, and simple circuits. It is also possible to add support for new shapes by writing simple XML files, using a subset of SVG to draw the shape.
posted by J Slave 4/3/2004