Yet Another "Passing Objects" Thread

Question

Hi All,
Quick question about passing objects:
I have three classes - ClassA, ClassB and ClassC. Lets say I create an object of ClassA in ClassB. Also, I would like to send the ClassA object from ClassB to ClassC to update its data. My question is, can I set the ClassA object in ClassC and modify it through ClassB? Confusing? I'll try to create an example below.
ClassA:
public class ClassA {
       // data
} ClassB: creates and calls update methods for ClassA object
public class ClassB {
       ClassA object = new ClassA();
       // print object
       ClassC ClassCFacade = new ClassC();
       ClassCFacade.setClassAObject(object);
       ClassCFacade.updateClassAObject(object);
       // print object
}ClassC: updates object
public class ClassC {
      // set object
      public void setClassAObject(ClassA object) {
               // sets object
      // get object
      public ClassA getClassAObject() {
              // returns object
      // modify object
      public updateClassAObject() {
            ClassA o = getClassAObject()
            // modify o
            setClassAObject(o)
}So if objects are passed by reference, handle, or whatever you call it, essentially the above code should modify ClassA object created in ClassB, meaning the ClassA object should display it was modified after second print in ClassB. Although I've tried this implementation and the ClassA object is not modified after updateClassAObject method call from ClassB.
Any input would be appreciated.
Thanks,
Bob

Answer 1

OK. Here's snippets of actual code:
public class ClassA implements SessionBean, ClassARemoteBusiness {
    // ClassA Attributes
    Integer ID;
    String name;
    // SET METHODS
    public void setClassAID(Integer ID) {
        this.ID = ID;
    public void setClassAName(String name) {
        this.name = name;
    // GET METHODS
    public Integer getClassAID() {
        return ID;
    public String getCLassAName() {
        return name;
import classa.ClassA;
import classc.ClassC;
import javax.servlet.*;
import javax.servlet.http.*;
public class ClassB extends HttpServlet {
    private ClassA object;   
    private ClassC ClassCFacade;
    private ClassCFacade = lookupClassCBean();
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
          HttpSession session = request.getSession();           
          // display object values - displays default values
          out.println("ID: " +object.getClassAID());
          out.println("Name: " +object.getClassAName());
         // update object
         ClassCFacade.setClassAObject(object);
         ClassCFacade.updateClassAObjectID(someInteger);
         ClassCFacade.updateClassAObjectName(someName);
          // display object values - displays updated values
          out.println("ID: " +object.getClassAID());
          out.println("Name: " +object.getClassAName());
    // LOOKUP METHODS
    private web.ServiceLocator serviceLocator;
    private web.ServiceLocator getServiceLocator() {
        // service locator code
    private classc.ClassCRemote lookupClassCBean() {
        // lookup code       
import classa.ClassA;
public class ClassC implements SessionBean, ClassCRemoteBusiness {
    private ClassA o;
    // SET METHODS
    public void setClassAObject(ClassA object) {
        o = object;
    // UPDATE
    public void updateClassAObjectID(Integer ID) {
        o.setClassAID(ID);
    public void updateClassAObjectName(String name) {
        o.setClassAName(name);
}