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Java annotations

This is a good article to read on annotations and configuration files. The author of this article (not a stupid noob jumping on everything that is new) has a very intelligent view on when configurations files are good and when annotations can really provide help. I fully agree that the example on web services and annotations is a nightmare to read. Let's hope that people won't over-engineer and put annotations on everything they make ... I mean annotations can be helpful sometimes but they tend to be difficult to read and over-using them adds so much clutter to Java files (if we can still call them Java files).

Dom4J rulez

In case you would still be having fun with the standard J2SE DOM/SAX APIs, I suggest that you take a look at the Dom4J API. Not only the API is a breeze to use, but it really enhances your XML productivity. It has an DOM-integrated XPath support (through Jaxen), making things really powerful. I have started playing with it this morning and got converted a SAX + hand-crafted XML generation to using Dom4J by the beginning of the afternoon.

Here are some code extracts:

Reading

// Parsing SAXReader saxReader = new SAXReader(); Document document = saxReader.read(reader); // Protocol BusinessProtocol protocol = factory.createBusinessProtocol(document     .valueOf("/business-protocol/name")); //$NON-NLS-1$ readExtraProperties(protocol, document.selectSingleNode("/business-protocol")); //$NON-NLS-1$

Writing

// States Iterator it = protocol.getStates().iterator(); while (it.hasNext()) {     State s = (State) it.next();     Element el = root.addElement("state"); //$NON-NLS-1$     el.addElement("name").setText(s.getName()); //$NON-NLS-1$     el.addElement("final").setText(s.isFinalState() ? "true" : "false"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$     if (s.isInitialState())     {         el.addElement("initial-state"); //$NON-NLS-1$     }     writeExtraProperties(el, s); } // States Map states = new HashMap(); it = document.selectNodes("/business-protocol/state").iterator(); //$NON-NLS-1$ while (it.hasNext()) {      node = (Node) it.next();       State s = factory.createState(node.valueOf("name"), "true" //$NON-NLS-1$ //$NON-NLS-2$           .equals(node.valueOf("final"))); //$NON-NLS-1$       readExtraProperties(s, node);       protocol.addState(s);       states.put(s.getName(), s);       if (node.selectSingleNode("initial-state") != null) //$NON-NLS-1$       {            protocol.setInitialState(s);       } }

NetBSD toaster

http://www.theinquirer.net/?article=25321

L’esprit Linux …

Vu sur LinuxFR.

Update : le post en question a ete supprime, mais Google est passe par la, admirez donc la moelle substantielle de ce chef d'oeuvre