Issues while iterating BDB XML

Question

Hello there,
to begin with the issue, I've got a BDB XML, with couple of inserted documents. Using Java API.
I'm creating an application which integrates the database within and displays the contents (that is, documents) of a container in a JTree.
Next, I've overridden toString() of XmlDocument:
class MyTreeModelChild extends XmlDocument{
    ContainerManager cmanager; //ContainerManager is the class, which deals with the environments settings, opening containers, putting documents etc.
    public MyTreeModelChild(XmlDocument v, ContainerManager cmanager) throws Exception{
        super(v);
        this.cmanager = cmanager;
    public String toString(){
        //executeQuery is the method, which executes XPath queries. It's located in ContainerManager class and takes a string argument
        try{
            XmlResults xResults = cmanager.executeQuery("collection('demo.dbxml')/info/title/string()");
            while(xResults.hasNext()){
                XmlValue value = xResults.next();
                return value.asString();
            return null;
        catch(Exception e){
            return e.toString();
}The content of XML documents (don't mind the validation, that's an example):
first.xml
<info>
   <title>One</title>
</info>
second.xml
<info>
   <title>Two</title>
</info>Finally, I run the compiled code and watch the documents appear in the tree. They both have same titles (the second document is overridden by the first):
-One
-OneIf I check the query using dbxml shell, everything's nice:
-One
-TwoAny ideas, suggestions?
Andy

Answer 1

John,
thank you for the reply.
Indeed. The query returns the title of every document.
        try{
            XmlResults xResults = cmanager.executeQuery("collection('demo.dbxml')/info/title/string()");
            while(xResults.hasNext()){
                XmlValue value = xResults.next();
                return value.asString();
            }I execute the query and while it has some results to return, do the loop. Take the first value as a XmlValue and return it as String. If I have more results (in this case -- yes, I do), the loop runs again.
Unfortunately, I cannot figure out what's from now on. The loop will return the same value.
I'm nor a geek in BDB XML neither in Java. Almost there, just a few obstacles in the way :)