Java Objects

Object names - like function arguments, object names are converted to camel case, starting with upper-case, e.g., crawl-url becomes CrawlUrl.
Enumerations - are currently handled like strings though we plan to add constants in the near future to avoid the need to type strings.
Properties - are objects that can be undefined (e.g., java.lang.Integer instead of int) when they are not required or have a default.
warning: Always check that a property is specified before accessing it to avoid null pointer errors.
Name collisions - when importing all the Watson Explorer Engine object types, you will need to use the full namespace for Java lists (i.e., java.util.List), because it conflicts with the schema's list element.

Multi-typed lists: an xs:choice is translated into multi-typed lists whose name concatenates all of the available types separated by Or

To read such a list, check the type of each element and cast accordingly:

QuerySearchResponse qsr = port.querySearch(qs);

Query q = qsr.getQueryResults().getQuery().get(0);
if (q != null && q.getParamOrParseParamOrOperator() != null) {
    for (Object paramOrParseParamOrOp: q.getParamOrParseParamOrOperator()) {
        if (paramOrParseParamOrOp.getClass() == Operator.class) {
            for (Object opOrTerm: q.getOperator().getOperatorOrTermOrLabel()) {
                if (opOrTerm.getClass() == Term.class) {
                    Term t = (Term)opOrTerm;
                    System.out.println(t.getStr());
                } else if (opOrTerm.getClass() == Operator.class) {
                    Operator o = (Operator)opOrTerm;
                    System.out.println(o.getLogic());
                }
            }
        }
    }
}

To create such a list, pass the necessary objects as elements.

QuerySearch qs = new QuerySearch();
qs.setQueryObject(new QuerySearch.QueryObject());
Operator op = new Operator();
op.setLogic("or");
qs.getQueryObject().setOperator(op);
java.util.List<Object> opl = op.getOperatorOrTermOrLabel();
Term te1 = new Term();
te1.setField("title");
te1.setStr("test");
opl.add(te1);