Re: Default value for @RemoteServiceRelativePath ?

[David Balažic]

What is RpcRefinable ?
Google finds only this thread when searching for it.

On Nov 23, 5:35 am, Didier Durand durand.did...@gmail.com wrote:
 Hi David,

 You can achieve what you want by using ServiceDefTarget of GWT.

 Here below some code snippet of mine dynamically creating a detailed
 url (instead of the basic one done by the annotation) to allow better
 monitoring: I put some info (object id, etc.) in the url to monitor
 more efficiently

 So, check the ServiceDefTarget object in GWT dev kit: it will provide
 you what you need.

 ServiceDefTarget def =
 (ServiceDefTarget)GWT.create(ServerObjectGetService.class);;
 String url = RELATIVE_URL + / +
 Util.getSimpleName(object.getClass());
 if (object instanceof RpcRefinable) {
         url += / + ((RpcRefinable)object).getSubUrl();}

 def.setServiceEntryPoint(url);

 didier

 On Nov 22, 9:02 pm, David Balažic xerc...@gmail.com wrote:

  Hi!

  would it be possible to have a default value for the
  RemoteServiceRelativePath annotation?
  Like the interface name?

  For example:

  @RemoteServiceRelativePath(StockPriceService)
  public interface StockPriceService extends RemoteService { ... }

  could be written just as

  public interface StockPriceService extends RemoteService { ... }

  And StockPriceService would be the default name is there is no
  annotation?

  Would save some typing for the developer.

  Regards,
  David

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Re: Default value for @RemoteServiceRelativePath ?

[Didier Durand]

Hi David,

This is just an interface of mine indicating that the URL can refined:
if the object is an instance, it supplies the sub-url to provide a
more detailled url for the server log.

regards
didier

On Nov 23, 4:34 pm, David Balažic xerc...@gmail.com wrote:
 What is RpcRefinable ?
 Google finds only this thread when searching for it.

 On Nov 23, 5:35 am, Didier Durand durand.did...@gmail.com wrote:

  Hi David,

  You can achieve what you want by using ServiceDefTarget of GWT.

  Here below some code snippet of mine dynamically creating a detailed
  url (instead of the basic one done by the annotation) to allow better
  monitoring: I put some info (object id, etc.) in the url to monitor
  more efficiently

  So, check the ServiceDefTarget object in GWT dev kit: it will provide
  you what you need.

  ServiceDefTarget def =
  (ServiceDefTarget)GWT.create(ServerObjectGetService.class);;
  String url = RELATIVE_URL + / +
  Util.getSimpleName(object.getClass());
  if (object instanceof RpcRefinable) {
          url += / + ((RpcRefinable)object).getSubUrl();}

  def.setServiceEntryPoint(url);

  didier

  On Nov 22, 9:02 pm, David Balažic xerc...@gmail.com wrote:

   Hi!

   would it be possible to have a default value for the
   RemoteServiceRelativePath annotation?
   Like the interface name?

   For example:

   @RemoteServiceRelativePath(StockPriceService)
   public interface StockPriceService extends RemoteService { ... }

   could be written just as

   public interface StockPriceService extends RemoteService { ... }

   And StockPriceService would be the default name is there is no
   annotation?

   Would save some typing for the developer.

   Regards,
   David



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Default value for @RemoteServiceRelativePath ?

[David Balažic]

Hi!

would it be possible to have a default value for the
RemoteServiceRelativePath annotation?
Like the interface name?

For example:

@RemoteServiceRelativePath(StockPriceService)
public interface StockPriceService extends RemoteService { ... }

could be written just as

public interface StockPriceService extends RemoteService { ... }

And StockPriceService would be the default name is there is no
annotation?

Would save some typing for the developer.

Regards,
David

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Re: Default value for @RemoteServiceRelativePath ?

[Didier Durand]

Hi David,

You can achieve what you want by using ServiceDefTarget of GWT.

Here below some code snippet of mine dynamically creating a detailed
url (instead of the basic one done by the annotation) to allow better
monitoring: I put some info (object id, etc.) in the url to monitor
more efficiently

So, check the ServiceDefTarget object in GWT dev kit: it will provide
you what you need.

ServiceDefTarget def =
(ServiceDefTarget)GWT.create(ServerObjectGetService.class);;
String url = RELATIVE_URL + / +
Util.getSimpleName(object.getClass());
if (object instanceof RpcRefinable) {
url += / + ((RpcRefinable)object).getSubUrl();
}
def.setServiceEntryPoint(url);

didier

On Nov 22, 9:02 pm, David Balažic xerc...@gmail.com wrote:
 Hi!

 would it be possible to have a default value for the
 RemoteServiceRelativePath annotation?
 Like the interface name?

 For example:

 @RemoteServiceRelativePath(StockPriceService)
 public interface StockPriceService extends RemoteService { ... }

 could be written just as

 public interface StockPriceService extends RemoteService { ... }

 And StockPriceService would be the default name is there is no
 annotation?

 Would save some typing for the developer.

 Regards,
 David

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GWT RPC , IncompatibleRemoteServiceException, Possible @RemoteServiceRelativePath. problem

[Dr. Leff]

I am having trouble getting a simple GWT RPC to work.   I got the
default
created by the Application Builder, webAppCreator to work fine in
both development mode and on my server.  I then tried to create my own
that passes back an object.

When I run it in hosted mode, the Jetty tab says greetServlet:
An IncompatibleRemoteServiceException: This application is out of
date, please click the refresh button.  I tried not only doing that,
in both Internet
Explorer and Mozilla, but also changing to another computer and
resetting up all
the files.  I always get this error.  (I also got the same error
message
when I ran it in build mode on my Servlet Container.  This was the
first
time I ran the application in the browser.)

Here is the code where I set up my call to the service in
MyWebApp.java,


  private final ThreeAsync greetingService = GWT.create(Three.class);

greetingService.GE(LastName,FirstName, new
AsyncCallbackEmployee() {
  public void onFailure(Throwable caught) {
// Show the RPC error message to the user
dialogBox.setText(Remote Procedure Call - Failure);
serverResponseLabel.setHTML(server Error);
dialogBox.center();
closeButton.setFocus(true);
  }

  public void onSuccess(Employee result) {
dialogBox.setText(Remote Procedure Call);
 
serverResponseLabel.removeStyleName(serverResponseLabelError);
serverResponseLabel.setHTML(result.toString());
dialogBox.center();
closeButton.setFocus(true);
  }
});
  }

And here is the Three.java and ThreeAsync.java files I use in my
client
directory (C:\g3\src\com\mycompany\mywebapp)


package com.mycompany.mywebapp.client;

import com.google.gwt.user.client.rpc.AsyncCallback;
import com.mycompany.mywebapp.shared.Employee;
/**
 * The async counterpart of codeThree/code.
 */
public interface ThreeAsync {
  void GE(String LN, String FN, AsyncCallbackEmployee callback)
  throws IllegalArgumentException;
}



package com.mycompany.mywebapp.client;
import com.mycompany.mywebapp.shared.Employee;

import com.google.gwt.user.client.rpc.RemoteService;
import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;

/**
 * The client side stub for the RPC service.
 */
@RemoteServiceRelativePath(greet)
public interface Three extends RemoteService {
  public Employee GE(String LN, String FN) throws
IllegalArgumentException;
}





One of the Google Web Posts mentioned that this can be caused by a
problem
with the @RemoteServiceRelativePath.  I do not understand what is
supposed
to be in the parentheses for this argument.

Here is the definition of the Employee class

package com.mycompany.mywebapp.shared;
import java.util.Date;
import java.io.*;
public class Employee implements Serializable{
public String LastName;
public String FirstName;
public float Salary;
public Date BirthDate;
public String toString () {
return LastName+, +FirstName;
}}


And here is my test of the server code in the server directory:


package com.mycompany.mywebapp.server;

import com.mycompany.mywebapp.client.Three;
import com.mycompany.mywebapp.shared.FieldVerifier;
import com.mycompany.mywebapp.shared.Employee;
import com.google.gwt.user.server.rpc.RemoteServiceServlet;
import java.util.Date;

/**
 * The server side implementation of the RPC service.
 */
@SuppressWarnings(serial)
public class ThreeImpl extends RemoteServiceServlet implements Three {

Employee [] EmployeeList;
int EmployeeCount;
  public Employee GE(String LastName, String FirstName) throws
IllegalArgumentException {
// Verify that the input is valid.
if (!FieldVerifier.isValidName(LastName) || !
FieldVerifier.isValidName(FirstName)) {
  // If the input is not valid, throw an IllegalArgumentException
back to
  // the client.
  throw new IllegalArgumentException(
  Both Name must be at least 4 characters long);
}
Employee ReturnThis;
ReturnThis = new Employee();
ReturnThis.LastName=LastName;
ReturnThis.FirstName=FirstName;
ReturnThis.Salary = 2;
ReturnThis.BirthDate = new Date(1990,10,12);
return
ReturnThis;
  }
}

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Add RetentionPolicy.RUNTIME to @RemoteServiceRelativePath

[Ulon]

The annotation @RemoteServiceRelativePath is used in the client side
by GWT to find out the URL path of the RPC service.

Server side code could make use of this annotation too. After all, our
server-side code is going to implement the client side remote
interface, so we should be able to get access to that annotation and
extract the path in order to map the controller. Right now this
annotation is lost in run time, so it's impossible to get this piece
of data and we have to explicitly duplicate information in the server
side in order to map the controller.

Regards,

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Re: Add RetentionPolicy.RUNTIME to @RemoteServiceRelativePath

[Martin D'Aloia]

There is an accepted issue for this... see:
http://code.google.com/p/google-web-toolkit/issues/detail?id=3803

And add a star

On Mon, Mar 22, 2010 at 7:44 AM, Ulon monz...@gmail.com wrote:

 The annotation @RemoteServiceRelativePath is used in the client side
 by GWT to find out the URL path of the RPC service.

 Server side code could make use of this annotation too. After all, our
 server-side code is going to implement the client side remote
 interface, so we should be able to get access to that annotation and
 extract the path in order to map the controller. Right now this
 annotation is lost in run time, so it's impossible to get this piece
 of data and we have to explicitly duplicate information in the server
 side in order to map the controller.

 Regards,

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Re: How to consume a service from another module (RemoteServiceRelativePath and ServiceDefTarget question)

[Ashar Lohmar]

the problem appears because of the RemoteServiceRelativePath as you
noticed it says relativepath,
one way to fix that is to use your code ((ServiceDefTarget)
gwtService).setServiceEntryPoint(/some/absolute/path);
or use the power of the relative path (that's how i do it, because I'm
lazy)
@RemoteServiceRelativePath(../servX)
which instead of /modB/servX or /modA/servX will become /servX no
matter what module calls it
also you'll need to make the proper changes in web.xml so that the
servlet class will be mapped to the /servX path



On Feb 21, 5:44 pm, Fabio fabio.it...@gmail.com wrote:
 Hi,

 First, the scenario: I designed two GWT modules (modA.gwt.xml and
 modB.gwt.xml), each with its own services:

 // Module A services
 @RemoteServiceRelativePath(serv1)
 public interface Service1OnModuleA extends RemoteService { ... }

 @RemoteServiceRelativePath(serv2)
 public interface Service2OnModuleA extends RemoteService { ... }

 // Module B services
 @RemoteServiceRelativePath(servX)
 public interface ServiceXOnModuleB extends RemoteService { ... }

 @RemoteServiceRelativePath(servY)
 public interface ServiceYOnModuleB extends RemoteService { ... }

 At the server side, service implementations were configured to serve /
 modA/serv1, /modA/serv2, etc..., /modB/servX, /modB/servY.

 But when trying to consume Service1OnModuleA  from module B code, the
 call is directed to /modB/serv1, instead of /modA/serv1. Obviously, /
 modB/serv1 produces a HTTP 404 error.

 By the web, I found ServiceDefTarget can be used to configure absolute
 instead of relative paths:
  * ((ServiceDefTarget) gwtService).setServiceEntryPoint(/some/
 absolute/path);

 What would be the best practices in these scenarios? The topics bellow
 can help to summarize the question.
  * How to design and consume inter-module services?
  * What's the best way to design service URLs?
  * When to use and not to use RemoteServiceRelativePath annotation?
  * Is there some way to define absolute paths without having to hard-
 code it everywhere via ServiceDefTaget casts?

 Thanks,
 Fábio.

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How to consume a service from another module (RemoteServiceRelativePath and ServiceDefTarget question)

[Fabio]

Hi,

First, the scenario: I designed two GWT modules (modA.gwt.xml and
modB.gwt.xml), each with its own services:

// Module A services
@RemoteServiceRelativePath(serv1)
public interface Service1OnModuleA extends RemoteService { ... }

@RemoteServiceRelativePath(serv2)
public interface Service2OnModuleA extends RemoteService { ... }


// Module B services
@RemoteServiceRelativePath(servX)
public interface ServiceXOnModuleB extends RemoteService { ... }

@RemoteServiceRelativePath(servY)
public interface ServiceYOnModuleB extends RemoteService { ... }


At the server side, service implementations were configured to serve /
modA/serv1, /modA/serv2, etc..., /modB/servX, /modB/servY.

But when trying to consume Service1OnModuleA  from module B code, the
call is directed to /modB/serv1, instead of /modA/serv1. Obviously, /
modB/serv1 produces a HTTP 404 error.

By the web, I found ServiceDefTarget can be used to configure absolute
instead of relative paths:
 * ((ServiceDefTarget) gwtService).setServiceEntryPoint(/some/
absolute/path);

What would be the best practices in these scenarios? The topics bellow
can help to summarize the question.
 * How to design and consume inter-module services?
 * What's the best way to design service URLs?
 * When to use and not to use RemoteServiceRelativePath annotation?
 * Is there some way to define absolute paths without having to hard-
code it everywhere via ServiceDefTaget casts?

Thanks,
Fábio.

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Re: @RemoteServiceRelativePath

[Aximilli302]

I have the following tag:

servlet path=/MyService
class=com.google.tabs.server.MyServiceImpl /

On Sep 1, 1:43 pm, Thad thad.humphr...@gmail.com wrote:
 Do you have the proper servlet and servlet-mapping tags in your
 web.xml?

 On Sep 1, 10:31 am, Aximilli302 aximilli...@gmail.com wrote:



  Me again, I have another quick question for the general comunity.

  What goes into the @RemoteServiceRelativePath tag? Is it the name of
  the class it is in? for example,

  package com.google.tabs.client;

  import com.google.gwt.user.client.rpc.RemoteService;
  import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
  @RemoteServiceRelativePath(MyService)

  public interface MyService extends RemoteService{

          public String myMethod(String s, String username);

  }

  I put that in, and the server call fails. I get a warning:

  Sep 1, 2009 9:24:28 AM
  com.google.appengine.tools.development.LocalResourceFileServlet doGet
  WARNING: No file found for: /tabs/MyService

  Does anyone know how to make this work?- Hide quoted text -

 - Show quoted text -
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Re: @RemoteServiceRelativePath

[Aximilli302]

I have this tag:

servlet path=/serve class=com.google.tabs.server.MyServiceImpl /

On Sep 1, 1:43 pm, Thad thad.humphr...@gmail.com wrote:
 Do you have the proper servlet and servlet-mapping tags in your
 web.xml?

 On Sep 1, 10:31 am, Aximilli302 aximilli...@gmail.com wrote:



  Me again, I have another quick question for the general comunity.

  What goes into the @RemoteServiceRelativePath tag? Is it the name of
  the class it is in? for example,

  package com.google.tabs.client;

  import com.google.gwt.user.client.rpc.RemoteService;
  import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
  @RemoteServiceRelativePath(MyService)

  public interface MyService extends RemoteService{

          public String myMethod(String s, String username);

  }

  I put that in, and the server call fails. I get a warning:

  Sep 1, 2009 9:24:28 AM
  com.google.appengine.tools.development.LocalResourceFileServlet doGet
  WARNING: No file found for: /tabs/MyService

  Does anyone know how to make this work?- Hide quoted text -

 - Show quoted text -
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Re: @RemoteServiceRelativePath

[Thomas Broyer]

On 2 sep, 15:02, Aximilli302 aximilli...@gmail.com wrote:
 I have the following tag:

 servlet path=/MyService
 class=com.google.tabs.server.MyServiceImpl /

This is no longer used in HostedMode (vs. GWTShell; i.e. since GWT
1.6), and it should have warned you about it.
You have to configure your war/WEB-INF/web.xml just like with any Java
webapp.

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@RemoteServiceRelativePath

[Aximilli302]

Me again, I have another quick question for the general comunity.

What goes into the @RemoteServiceRelativePath tag? Is it the name of
the class it is in? for example,

package com.google.tabs.client;

import com.google.gwt.user.client.rpc.RemoteService;
import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
@RemoteServiceRelativePath(MyService)

public interface MyService extends RemoteService{

public String myMethod(String s, String username);
}



I put that in, and the server call fails. I get a warning:

Sep 1, 2009 9:24:28 AM
com.google.appengine.tools.development.LocalResourceFileServlet doGet
WARNING: No file found for: /tabs/MyService



Does anyone know how to make this work?
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Re: @RemoteServiceRelativePath

[Thad]

Do you have the proper servlet and servlet-mapping tags in your
web.xml?

On Sep 1, 10:31 am, Aximilli302 aximilli...@gmail.com wrote:
 Me again, I have another quick question for the general comunity.

 What goes into the @RemoteServiceRelativePath tag? Is it the name of
 the class it is in? for example,

 package com.google.tabs.client;

 import com.google.gwt.user.client.rpc.RemoteService;
 import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
 @RemoteServiceRelativePath(MyService)

 public interface MyService extends RemoteService{

         public String myMethod(String s, String username);

 }

 I put that in, and the server call fails. I get a warning:

 Sep 1, 2009 9:24:28 AM
 com.google.appengine.tools.development.LocalResourceFileServlet doGet
 WARNING: No file found for: /tabs/MyService

 Does anyone know how to make this work?
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@RemoteServiceRelativePath glassfish problem

[SimonC]

Hi,
@RemoteServiceRelativePath does not work correctly when war is
deployed on glassfish server 2.1

I've noticed that GWT.getModuleBaseURL() returned value had doubled
application name suffix at the URL end:

http://localhost:8080/ejbAccess/ejbAccess/

instead of value returned in hosted mode:

http://localhost:8080/ejbAccess/


Does anyone have any idea why this behavior is wrong/different on
glassfish2.1 ?

Regards,
sc

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@RemoteServiceRelativePath retention policy

[Dan Ox]

This is not really a cry for help, more just a grumble. I had this
great idea to include in my unit tests a check to see if my server-
side RPC implementation class was being registered properly by
grabbing the URL out of the ? extends RemoteService interfaces using
reflection to get the @RemoteServiceRelativePath annotation and then
using the URL inside of it to test if the server was correctly set up.

After going mental for a few hours I stumbled across the @Retention
annotation that is used (or in this case, not used) to tell Java where
to store the annotation. In the case of @RemoteServiceRelativePath
there is no @Retention in the annotation's definition which means it
falls back to the default of storing the URL in the code, the bytecode
but not in memory once the class is loaded at runtime.

I get that the annotation is really mainly used for compiling into
JavaScript, but would it be hard to define it's retention as RUNTIME?
I'm in the habit of doing most of my unit testing with actual java
objects and only using GWTTestCase when I really need it (results in
much faster tests). Specifying the annotation as CLASS retention
policy means I have no way of accessing the information inside of it
during my unit tests.

I'm just wondering, is this by design or is it just how it is for no
real reason? Does anyone know?


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