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Posted to users@cxf.apache.org by Arul Dhesiaseelan <ar...@fluxcorp.com> on 2008/05/02 00:52:10 UTC

overloaded operation names in JAX-WS

Hi,

I am getting an IllegalArgumentException (An operation with name 
[{http://example.com}getGroups] already exists in this service) when I 
have overloaded methods in my web service.

Is it not supported to have overloaded web service methods in JAX-WS?

I have the following methods:

public Groups getGroups();
public Groups getGroups(String pattern);

Please clarify.

Cheers,
Arul

Re: overloaded operation names in JAX-WS

Posted by Arul Dhesiaseelan <ar...@fluxcorp.com>.

Thanks Ian. I am using CXF on both ends. So, your solution works great 
for me.

Cheers,
Arul

Ian Roberts wrote:
> Arul Dhesiaseelan wrote:
>> Hi,
>>
>> I am getting an IllegalArgumentException (An operation with name 
>> [{http://example.com}getGroups] already exists in this service) when 
>> I have overloaded methods in my web service.
>>
>> Is it not supported to have overloaded web service methods in JAX-WS?
>>
>> I have the following methods:
>>
>> public Groups getGroups();
>> public Groups getGroups(String pattern);
>
> No, all the operations must have different names in the WSDL.  If you 
> are using CXF on both client and server side, you can do something like:
>
> @WebMethod
> public Groups getGroups();
>
> @WebMethod(operationName = "getGroupsByPattern")
> public Groups getGroups(String pattern);
>
> This would give the two operations different names in the WSDL, but 
> you can use the Java interface as the serviceClass of a 
> JaxWsProxyFactoryBean and call both methods via their overloaded name.
>
> Ian
>
> P.S. If you were to generate code from the WSDL you would get public 
> Groups getGroupsByPattern(String arg0), of course.
>

Re: overloaded operation names in JAX-WS

Posted by Ian Roberts <i....@dcs.shef.ac.uk>.

Arul Dhesiaseelan wrote:
> Hi,
> 
> I am getting an IllegalArgumentException (An operation with name 
> [{http://example.com}getGroups] already exists in this service) when I 
> have overloaded methods in my web service.
> 
> Is it not supported to have overloaded web service methods in JAX-WS?
> 
> I have the following methods:
> 
> public Groups getGroups();
> public Groups getGroups(String pattern);

No, all the operations must have different names in the WSDL.  If you 
are using CXF on both client and server side, you can do something like:

@WebMethod
public Groups getGroups();

@WebMethod(operationName = "getGroupsByPattern")
public Groups getGroups(String pattern);

This would give the two operations different names in the WSDL, but you 
can use the Java interface as the serviceClass of a 
JaxWsProxyFactoryBean and call both methods via their overloaded name.

Ian

P.S. If you were to generate code from the WSDL you would get public 
Groups getGroupsByPattern(String arg0), of course.

-- 
Ian Roberts               | Department of Computer Science
i.roberts@dcs.shef.ac.uk  | University of Sheffield, UK