Java

SQuirreL is a 100% pure-Java implementation of a generic SQL client. You can browse and analyse any database which provides a JDBC driver. You can execute any kind of SQL statements. SQuirreL provides a plugin mechanism to hook in additional features. The default installation comes with a lot of plugins, for example MySQL-specific plugins, code completion, data import plugins and more.



In this article, I'd like to show you how to write your own plugin for SQuirreL and what you need to do to set up your development environment. I'll implement two features for indexing tables and their content into an Apache Lucene index and to make it searchable using full-text search.

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To validate an XML document against an XSD Schema, Java 5 offers standard functionality with the built-in JAXP API. To do that, first create the Schema object as follows:

URL resource = getClass().getResource( SCHEMA_FILE );
SchemaFactory factory = SchemaFactory.newInstance( XMLConstants.W3C_XML_SCHEMA_NS_URI );
Schema schema = factory.newSchema( resource );

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What are Dynamic Applications?

It's the software-way of putting the business people back in charge. Today, changes to enterprise business software takes ages to get into production. Endless analyze-redesign-implement-test-deploy cycles affecting multiple stakeholders: IT, QA, vendors and of course the sponsor.

How would it feel if the first three stakeholders could be removed from the process, once the application has been finalized in its initial state? How about giving the sponsor or business department the ability to adapt and change applications on their own? How about giving them the ability to change complex business logic, fine-tune parameters and model work flow to reflect the reality when and as soon as it changes?

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I just read the article about the new Java Servlet 3.0 Specification over at dZone when it once again struck me: Annotations!

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JBoss 5.0.0.GA startup message:

15:55:41,325 WARN [JBossASSecurityMetadataStore] WARNING! POTENTIAL SECURITY RISK. It has been detected that the MessageSucker component which sucks messages from one node to another has not had its password changed from the installation default. Please see the JBoss Messaging user guide for instructions on how to do this.

Obviously "Pulling Messages" or "Reading Messages" hadn't fit the meaning the programmer or whoever wrote this message wanted it to have.

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