Java DC calling Operation on Entity Service

I have three entities (Entity Services) and one Application Service.
Application Service needs a operation to pull data from each entity based on the input parameter (name, type String).
The operation, builds an object with attributes from all three entities, and returns that newly created object.
I have a Java DC, that's going call this operation on the Application Service.
Question: How Java DC would know the object type of the object returned by the operatio on the custom operation on the Application Service?
Is it possible to do something like this or is there a better way to do this?
BTW, This Java DC is being used as Callable Object in GP.
Can I create a Service Endpoint for the Application Service and build the Callable Object directly against the Application Service. Then how to invoke method on the Application Service? How to handle the Object returned by the Application Service method?

At first, I'd say you shouldn't be needed a java dc with gp interface if you have a CAF application service.
GP has a CO for CAF application service you can use out of the box to reference a method of an application service you've deployed on your server. Pretty straight forward. No need of endpoint if service is deployed locally.
That is assuming you don't have any particular requirements I'm not aware of here.

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Entity Services: readByCustomKeys operation mapped to External Service

Hello *,
in my CAF application I'd like to read a product from SAP PLM. Within my Entity Service materialNumber is my custom key and therefore a corresponding operation exists: readByCustomKeys.
I map this operation to my External Service (Web service provided by XI).
As I can't test this operation directly with the Service Browser (deosn't appear there), I wrap my Entity Service with an Application Service where I use the readByCustomKeys operation from Entity Service.
Now when I test the Application Service operation I get the following error message in Service Browser:
ERROR. Invalid type value :
In XI I can see that there was no error and I got well defined XML data as response. So the problem must occur anywhere in the mapping back from External Service data to Entity Service attributes.
Wrong data type mapping can be excluded as I already tested this possibility.
Does anyone know what could be the reason?
Thanks for your answers and best regards
Joschi

Hello Joachim,
I dont have a lot of experience with readByCustomKeys (one experience which failed) but uou can also use read itself. If you have defined materialNumber as a key in your entity service, then this field can be used in read operations as well (I have a lot of positve experiences with this approach). You will find materialNumber while mapping read with your external service and you need not map the key field generated by Entity Service.
For testing entity services, we have had several positive experiences with the config browser, specially for a findBy, read and even update operation. It was very easy to have a prototype UI to check the entity services.
I know this isnt the answer to your question, but just sharing my experiences.
All the best!!!
Regards,
Parag.

Find operation with range of dates in entity services

Hello,
I created an entity service called A with 3 attributes: description (string), startDate (date) and endDate (date). I need to have a find operation that retrieves all A instances where startDate and endDate are in specific ranges of date.
For example, operation needs to return all instances where startDate is between 01/03/2007 and 05/03/2007 and/or my endDate is between 10/03/2007 and 15/03/2007.
Is it possible to do using entity services operations ? If yes, how can I do that ?
Thanks in advance,

Hi Helder,
Create a findBy method (findbyDateRange) for the entity service with the fromDate and toDate as input parameters. In the app service create a method with four input parameters of type caf.core.timestamp/date (fromdateStart, fromdateEnd and todateStart and todateEnd). In the method implementation write :
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Hola mi nombre es Luis,
Creyendo que eres español te escribo en tal idioma.
He visto que a ti también te devolvía un error de autentificación 401, y que lo subsanaste, pero a mi con la solución que te dieron no me vale, ya que implemento el código que te ofrecieron para arreglarlo y ahora me da un fallo de "Server Error" poniendo en usuario y password, los correspondientes a XI.
+Request_MI_outTurnoverDetailsDisplay_MI_outTurnoverDetailsDisplay req=new Request_MI_outTurnoverDetailsDisplay_MI_outTurnoverDetailsDisplay();
wdContext.nodeRequest_MI_outTurnoverDetailsDisplay_MI_outTurnoverDetailsDisplay().bind(req);
req._setUser("username");
req._setPassword("password");+
No sé si es que ese usuario y contraseña son otros distintos.
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Java calling secured IIS web service

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Calling the WS returns the 401 error which is fine, but how do I authenticate the http connection?
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Hi Rika,
have a look to the blog: https://weblogs.sdn.sap.com/pub/wlg/1645. [original link is broken] [original link is broken] [original link is broken] [original link is broken]
Screen shots are "old" but the concepts are already there. Serach the chapter "SAP Side - Setup".
Basically: define your RFC destination via SM59 of type G. There you'll define the target host and the user/password.
Then in LPCONFIG you can specify the defined RFC destination.
Have a look also to http://help.sap.com/saphelp_nw2004s/helpdata/en/16/285d32996b25428dc2eedf2b0eadd8/content.htm
and to
http://help.sap.com/saphelp_nw04s/helpdata/en/da/11df3a9b10355ae10000000a11405a/content.htm
Sergio
PS
Kindly close the thread and award appropriate a points to the answer given.
Message was edited by:
Sergio Ferrari

Calling a soap web service from a java desktop application

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http://java.sun.com/webservices/technologies/index.jsp
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Anybody has experience calling ID API web service in Java

Hello,
as you know we can programmatically update ID objects by call ID APIs (web service). To do that you need to import the wsdl into a java project, generate web service client and call the client to update ID objects.
I've tried this in NWDS CE version. However I got error when generating web service client from the wsdl of the ID web service. Only the BusinessComponentService passed the ws client genertion, the rest web services do not work.
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HI Jayson,
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Dear Support,
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Regards
Ashif

Hi,
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Calling Operating System Commands from PL/SQL using java

Calling Operating System Commands from PL/SQL - The Java Way
wlth help of given thread link,
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null

We do not use JDeveloper but use external procedures/routines called from the database. Then you can call a database procedure to an operating system task.
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Deleting Entity Services

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I deleted an entity service call Status_Obj, but after Generate all Project Code, appears the following error:
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Realationship enterprise service - application/entity service

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Using different RFC's in one Application / Entity Service?

Hello *,
I just want to create my first Composite Application Service but before I begin I have some questions.
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Joschi

Ok, thanks a lot. So nearly everything's clear now. Only one question remains:
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Regards
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Hi Raju,
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Java DC calling Operation on Entity Service

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