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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);       } }

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