Adding extra methods to a JAXB class generated from schema

Question

Here\'s a trivial excerpt from my XSD file

Answer 1

Following the link the Brian Henry gave, I found I could perform binding customization inline in my schema file to do what I wanted. The effect is exactly the same as Brian's solution, but it doesn't require a reference to a reference to com.sun.xml.internal.

First, the schema file gets modified somewhat:

When the schema gets compiled into Java code, the generated ObjectFactory will refer to DocumentEx instead of Document. DocumentEx is a class I create, which looks like this:

public class DocumentEx extends Document {
   public String getStrippedTitle() {
       return getTitle().replaceAll("\\s+", "");
   }
}

Document (the class I'm extending) is still generated by the schema-to-Java compiler. Now when I unmarshall a document I actually get a DocumentEx object:

    JAXBContext jaxbContext = JAXBContext.newInstance("com.example.xml");
    Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
    unmarshaller.setSchema(testSchema);
    DocumentEx doc = (DocumentEx)unmarshaller.unmarshal(xmlFile);

There is some (hard-to-parse) documentation for this at Oracle and some helpful examples at O'Reilly.