Why do you need a single instance of RemoteService?
You should move your state machine away from RPCTest. You can register a
Spring bean (which will have only once isntance by default) and handover to
it by lloking up the Spring bean. Look at Spring framework.
Look at how I am doing?
<code>
public AbstractDomain[] getRowData(AbstractDomain instance) throws
RemoteServiceException {
checkSession();
WebApplicationContext context =
WebApplicationContextUtils.getWebApplicationContext(env.getRpcServlet().getServletContext());
IDao dao = (IDao)context.getBean("myDao"); //single instance of
DAO
AbstractDomain[] rows = dao.getRowData(instance);
return rows;
}
</code>
marino99 wrote:
>
>
> Hi again,
>
> doesn't anybody have a solution / clue for me? Or is it even impossible to
> have one instance of a Java class and use it the way instances are usually
> used? Maybe I didn't make my point clear enough, so here's the code I used
> for testing:
>
> var button1 = new qx.ui.form.Button("setTestString", "rpctest/test.png");
> var doc = this.getRoot();
> doc.add(button1, {left: 100, top: 50});
> var rpc = new qx.io.remote.Rpc("http://localhost:8080/rpctest/.qxrpc";,
> "rpc.RPCTest");
> rpc.setCrossDomain(true);
> var handler1 = function(result, exc) {
> if (exc == null) {
> alert("Result of handler1: " + result);
> } else {
> alert("Exception during handler1 async call: " + exc);
> }
> };
> button1.addListener("execute", function(e) {
> rpc.callAsync(handler1, "setTestString", "test it");
> });
>
> var button2 = new qx.ui.form.Button("getTestString", "rpctest/test.png");
> doc.add(button2, {left: 100, top: 150});
> var handler2 = function(result, exc) {
> if (exc == null) {
> alert("Result of handler2: " + result);
> } else {
> alert("Exception during handler2 async call: " + exc);
> }
> };
> button2.addListener("execute", function(e) {
> var str = rpc.callAsync(handler2, "getTestString");
> });
>
>
> And this is the Java class RPCTest:
>
> public class RPCTest implements RemoteService {
> int n;
> String testString = "default";
>
> public String getTestString() throws RemoteServiceException {
> return testString;
> }
>
> public void setTestString(String s) throws RemoteServiceException {
> testString = s;
> }
> }
>
> Both methods work for themselves, but when I call setTestString() by
> clicking button1 and then getTestString() by clicking button2 I get the
> String "default" instead of "test it" because a new instance is created
> each
> time. How can I manage to reuse the instance that has been created by
> clicking button1?
>
>
>
> marino99 wrote:
>>
>> Hello,
>>
>> I have a problem concerning RPC with Java. I use Apache Tomcat as a
>> server
>> on my local system. Async calls to Java classes work fine, but I would
>> like to use one instance of a Java class again. I don't know if that's at
>> all possible, but hope so.
>> In more detail: I would like to be able to call the method setSomething()
>> in the Java class and get the value I just set by calling getSomething().
>> At the moment, a new instance is generated everytime I call any method.
>> I think it's got something to do with Tomcat. Maybe I need to change any
>> settings, e.g. web.xml?
>>
>> Thanks for your help!
>>
>
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