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Database/Data Model Round-Trip Engineering with MySQL

by Djoni Darmawikarta | May 2009 | PHP

Round-trip engineering as applied to a database means reverse engineering (database to data model) and forward engineering (data model to database) back and forth.

In this article, Djoni Darmawikarta shows how to maintain an existing MySQL database using Power*Architect. Particularly, he shows by examples, how to reverse engineer an existing MySQL database, update the resulting data model, compare the updated model with the 'old' database, and implement the updates by forward-engineering them back to the database.

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Managing Content through Tagging in Grails: Part 1

by Jon Dickinson | May 2009 | Java Open Source Web Development

As with messages, files are displayed on the home page in the order they are added to the system. Currently all messages and files are displayed on the home page. Over time, our home page is going to become rather large and unwieldy. We need a user's home page to show only the files and messages that they are interested in. To do this, users need to be able to tag their content.

The new Grails concepts that will be introduced in this two-part article series by Jon Dickinson are:

  • Working with inheritance in the domain classes, and looking at which strategies GORM supports for persistence
  • Using polymorphic queries over a domain inheritance hierarchy
  • Encapsulating view-rendering logic in GSP templates
  • Manipulating collections with the Groovy collect and sort methods
Read Managing Content through Tagging in Grails: Part 1 in full

Short and Long-Running Processes in SOA-part1

by Michael Havey | May 2009 | Java Oracle

In this 2-part article series by Michael Havey, we have classified processes by duration, dividing them into three categories: short-running, mid-running, and long-running. Long-running processes need state, so we have examined three data models to keep process state: those used in BEA Weblogic Integration and Oracle's BPEL Process Manager, and our own custom model, which borrows ideas from these two. We then discuss how to build a long-running process out of several short-running processes (implemented in TIBCO's BusinessWorks) tied together with state in our custom data model. We then conclude by showing how short-running BPEL processes can be compiled for faster execution in the next part.

Read Short and Long-Running Processes in SOA-part1 in full

Preventing Remote File Includes Attack on your Joomla Websites

by Tom Canavan | May 2009 | Joomla! Open Source

There are many types of attacks that can happen to a website. In a previous article, Preventing SQL Injection Attacks on your Joomla Websites was discussed. In this article by Tom Canavan, we will take a look at how Remote File Include(RFI) attacks occur, and how it can be prevented.

Read Preventing Remote File Includes Attack on your Joomla Websites in full

Short and Long-Running Processes in SOA-part2

by Michael Havey | May 2009 | Java Oracle

In this 2-part article series by Michael Havey, we have already learned about classified processes by duration, dividing them into three categories: short-running, mid-running, and long-running. Long-running processes need state, so we have examined three data models to keep process state: those used in BEA Weblogic Integration and Oracle's BPEL Process Manager, and our own custom model, which borrows ideas from these two. We then discussed how to build a long-running process out of several short-running processes (implemented in TIBCO's BusinessWorks) tied together with state in our custom data model. In this article you will learn how short-running BPEL processes can be compiled for faster execution.

Read Short and Long-Running Processes in SOA-part2 in full
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