What is Composite Application Services?

Dear Experts
What is Composite Application Services? What is it's use?
How can I create one?
Please give some sample scenarios so that I can try working it out.
Regards
Aparnna

Hi Aparnna,
You should use CAS or SAP Netweaver Composite Application Framework when you want to develop a composite application based on Netweaver platform. By composite application means an user-centric application based on a business process which is composed by services provided by backend legacy or enterprise systems. In CAF/CAS perspective in NWDS you can create a CAF core project and define your business entities with its corresponding access and lifecycle methods. These methods can be exposed as web services to be consumed by the CAF UI like Web Dynpro or Visual Composer.
For more information on CAF please refer the following links:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/d8dbd703-0801-0010-c9bf-c04bc52f562f [original link is broken] [original link is broken]
<a href="https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/58b0577a-0601-0010-52a3-bcf4b072a642">Introduction To CAF</a>
<a href="https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/6f4b527a-0601-0010-d5b6-969350fb66ae">Technical Aspects of CAF</a>
<a href="https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/df4428d1-0c01-0010-f199-f76424fccdf4">Composite Application Framework Overview</a>
Thanks,
Dipankar

Similar Messages

Exception in calling a web service from a composite application service

Hi,
I have created a composite application service with external service as a web service. My web service is deployed on localhost as well as I am running my composite application service in localhost. When i try to test the application service, I get the exception
com.sap.caf.mp.base.exception.InvocationException: Invalid parameters
The exception happens in MPConnector.java 'process' method where I am calling the execute operation on the service.
I have tried testing this through Service Browser as well as creating a callable object on the Application service and testing the callable object.
I am using the NWDS 7.0.06 version
and EP installed on my machine is the Sneak Preview 7.0 sp 7
Will appreciate all help in this regard.
Thanks,
Prachi

Hi Navneet,
I have verified the input/output parameters. They are simple types. All are Strings. Nothing really complex there.
I have the Service Exceptions added already.
And definitely the permissions are disabled but still this isn't working.
Any more clues might be helpful.
Thanks,
Prachi

Error when trying to create a Composite Application Services project

Hi Experts,
I am facing a problem while trying to create a project using NWDS 7.0 SP 13
New Development Component Project-> Composite Application Services
then pressing finish, it throws an error as follows
"Generation can not completed due to one or more error"
Reason :
Errors occurred during code generation
Warning :
EAR-META-INF generation failed : null
Plz help me to solve this
Thanks in advance,
John

Hi John,
It looks like there might be issue with CAF services related plugins. Check if there are any errors in log file under metadata folder of your workspace.Try deleting the metadata folder & restart the NWDS or start in a new workspace.
I feel if the issue persists, it is a bug & you can raise an OSS ticket.
Kind Regards,
Nitin

Problem when Creating Project (Composite Application Services) in NWDS

I've seen a few posts regarding this but I don't feel as if any real solution was given.
I just installed Netweaver Developer Studio (7.0.15) with the current JDK/JRE (1.6.0_07). When trying to create a new Composite Application Services project within the Studio, using the new project wizard, I get an error: Problem when Creating Project.
I get the EJB Module and Dictionary to create within my navigator with no problems, however, during the creation of the metadata, the error occurs. I do have the metadata folder appear within the navigator, but nothing in it. None of the other three items are created.
I have tried the attempt at deleting the metadata folder within my workspace directory and trying again but the same exact result occurs.
Is there any other solution out there for this problem besides attempting to find older versions of NWDS, etc. that are more "stable"?
Thank you!

Durga,
Very simple but effective solution.
I had tried uninstalling / re-installing NWDS with no effect but uninstalling / re-installing NWDS AND all java related products on my machine did work.
Note: For anyone else with this issue in the future. I installed the Java SDK / JRE 1.4.2_18 with NWDS 7.0.15 in case this is also a possible issue with versions.
Thanks, Durga!

Composite Application Services perspective not visible

Hi ,
i am working with Netweaver 7.1. I am not able to view Composite Application Services perspective in my NWDS. is there any licence issue or plug problem?
Kavita

Hi,
I think you have not installed required features from updite site(Local download directory) propperly after installation of your IDE.
In that case you have update your IDE through Software installation update option of Help menu.
The procedure will be mentioned in the start page of Software setup file(SAPNWCE71Trial_DevStudioSAPNWCE71Trial_DevStudio).
[This |perspectives not visible in NWDS 7.1 ehp1;thread is useful for you.
Thanks

Composite Application Services doesnot appear in the list

Composite Application Services doenot appear in the list .
Can somebdy help me..
Thanks

Hi Divya,
Here's the Link
<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/downloaditem?rid=/library/uuid/cfc19866-0401-0010-35b2-dc8158247fb6">sdn Downloads</a>
Here in SAP NetWeaver 2004s Java Trial Version, you can find the Developer Studio Download Link.
Also for Installation issues you can check the following thread <a href="CAF Error - Sneak Preview 2004s SPS9://CAF Error - Sneak Preview 2004s SPS9
Hope this helps.
Ashutosh
Message was edited by:
Ashutosh Rastogi

Parameter's name of Composite Application Service's operation

Hi All,
When we define a operation of Composite Application Service, we just simply add it from operation tag, and add the input & output parameters by choosing the attribute type and click the add-as-input button. The added parameter would be something like arg0, arg1, etc.
Is it possible possible to change these parameter's name into semantic word instead of these meaningless ones?
Thanks

Hi,
Select the operation parameters and open the properties view below. There you can change the name of the parameters.
Thanks,
Dipankar

What is the application "Services"?

Every time I turn on my computer it asks if I want to allow the application "Services" to accept incoming connections. I do not know what this application is, and I cannot find it anywhere on my computer. I click "deny" every time and it does not seem to affect the performance of my computer. I do not want to have to click this every time I turn it on, and I certainly do not want a harmful application bugging up my computer. Any help is appreciated.

>
I'm fairly new to Java and web services. From what I understand, JNLP and WebStart are methods to deploy Java clients to users and not for creating war files and the like. >Correct, while Java Web Start has 'web' in the name, it has little if anything to do with web applications - certainly not providing much toward their installation. It is for launching rich client GUI based (AWT, Swing, SWT..) applications onto the end-user's desktop.
There are some parts of JWS that might seem peripherally useful to the installation of a web-app., but it is really not a 'good fit'.
>
..Any suggestions would be so helpful and appreciated!>You might try the forums for the 'web tier' APIs.
<http://forum.java.sun.com/category.jspa?categoryID=20>
Or perhaps the forum 'Java Technologies for Web Services' (under 'enterprise technologies')
<http://forum.java.sun.com/forum.jspa?forumID=331>
This one in 'BigAdmin' seems particularly relevant, 'Set up and Deploy'
<http://forum.java.sun.com/forum.jspa?forumID=550>

Access key to use Composite Application Services

I am using Sap Net Weaver Developer Studio version 7.0.Its prompting me for an
access key to use composite application framework perspective.Its not downloaded from sdn.
regards,
ms.

Hi mythri,
Better to use Net Weaver Developer 7.0.6 and make sure that you have to use
Netweaver 2004s.
Regards
Srikanth

Error during creation Composite Application Service

Hello!!
In SAP NetWeather Developer Studio we create CAS(Composit Application Service), then we create ENTITY and make GENERATE ALL PROJECT CODE. If CAS is created locally, there are no errors during generation, but if it is created non-locally, an errors occurs with JDO.
1) The project was not built since its classpath is incomplete. Cannot find the class file for javax.jdo.PersistenceManager. Fix the classpath then try rebuilding this project.
2) This compilation unit indirectly references the missing type javax.jdo.PersistenceManager (typically some required class file is referencing a type outside the classpath)
Thank You!!

Hi Vadim,
Please uninstall your NWDS and java and reinstall them.
This may solve your problem.

Doubts composite application services

Hi,
plz give me steps or tutorials for developing a CAS DC.
my requirement is, i have few RFCs and i want to create one webservice which consumes these RFcs.
Is this possible through CAS ?
any tutorials for this ?
Thanks
Developer

Hi EpDeveloper
Here you have some interesting links:
[http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/94c377c2-0701-0010-4992-b27dab0aece2?overridelayout=true|http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/94c377c2-0701-0010-4992-b27dab0aece2?overridelayout=true]
[/people/dipankar.saha3/blog/2007/09/30/using-external-service-in-netweaver-ce-caf-core|/people/dipankar.saha3/blog/2007/09/30/using-external-service-in-netweaver-ce-caf-core]
[https://www.sdn.sap.com/irj/scn/elearn?rid=/library/uuid/c045bb2f-2b69-2a10-aeb3-b8cbcdce86d5&overridelayout=true|https://www.sdn.sap.com/irj/scn/elearn?rid=/library/uuid/c045bb2f-2b69-2a10-aeb3-b8cbcdce86d5&overridelayout=true]
[https://wiki.sdn.sap.com/wiki/display/HOME/CAF-Core(ServiceLayer)#CAF-Core(ServiceLayer)-HowcanIusetheservicesintheUI%3F|https://wiki.sdn.sap.com/wiki/display/HOME/CAF-Core(ServiceLayer)#CAF-Core(ServiceLayer)-HowcanIusetheservicesintheUI%3F]
Regards
Marcos

Cannot create CO of type Composite App Service in SP9

Hi All,
We have recently upgrade our system to SP9, from then I am not able to create CO of type Composite Application Service. Did anybody come acros this issue? It gives an error "an error "Invalid component: componentName=com.sap.caf.core.gp.ui.backgroundco.admin.COConfigAS dcName=sap.com/cafcoregpuibackgroundco~admin"."
Appreciate your time
Thanks
Som

Hi Som,
The sap.com/cafcoregpuibackgroundcoadmin.sda development component is located in the CAFKM09_0-10003478.SCA (Software component archive). You could try to unzip the SCA file and redeploy the sap.com/cafcoregpuibackgroundcoadmin.sda file.
If you don't see this sda file in your SDM client under SDM Repository->SapJ2EE Engine, then this probrably means that the CAFKM09_0-10003478.SCA component failed to deploy. You might want to check if other sda's in this sca have been deployed. You may have to redeploy the whole SCA.
Regards,
Austin.

Question about Composite Application Framework CE Expose Service as WS

hi
here is my question
i try NetWeaver CE with document "Service Composition with SAP Composite Application Framework Capabilities In SAP NetWeaver CE 7.1_0_.pdf"
but i cannot expose Application Service's query as Web Service like page 42.
the Library page said that because it's because the method ganna return muti-...
i wanna use caf of netweaver ce just like i used with caf of netweaver 7.0
What alternatives are there? if i have to get a list to display on VC.
thank you and good day.

it can use in EhP1

Errors in Importing Web Services to Composite Application

Hi Everyone,
I have created a CAF and exposed its operations as Web Services using CE 7.1 EhP1 SP2 platform.
Now I would like to import the web services into another CAF project as external service in the same CE AS.
The following are the error messages I have encountered during the importing of the service:
===========
Status ERROR
Plugin : com.sap.caf.designer.ui
code=-1
Web Service can not be imported due to some errors. See log for further details.
children=[
Status ERROR
Plugin : com.sap.caf.designer.ui
code=0
java.lang.reflect.InvocationTargetException
java.lang.reflect.InvocationTargetException
at com.sap.caf.designer.ui.actions.es.WSDownloadAction$1.run(WSDownloadAction.java:453)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)
Nested exceptions :com.sap.caf.foundation.caf_import.CAFDTImportException
atcom.sap.caf.foundation.caf_import.wsdl.CAFDTWSDLImporter.doImport(CAFDTWSDLImporter.java:208)
atcom.sap.caf.designer.ui.actions.es.WSDownloadAction$1.run(WSDownloadAction.java:441)
atorg.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)
Nested exceptions :java.lang.NullPointerException
atcom.sap.caf.foundation.mfw.util.WSDLUtils.gatherImportedSchemas(WSDLUtils.java:786)
atcom.sap.caf.foundation.mfw.util.WSDLUtils.gatherImportedSchemas(WSDLUtils.java:792)
atcom.sap.caf.foundation.caf_import.wsdl.CAFDTWSDLImporter.tranformImportedWSDLs(CAFDTWSDLImporter.java:402)
atcom.sap.caf.foundation.caf_import.wsdl.CAFDTWSDLImporter.doImport(CAFDTWSDLImporter.java:197)
atcom.sap.caf.designer.ui.actions.es.WSDownloadAction$1.run(WSDownloadAction.java:441)
atorg.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)
Status ERROR
Plugin : com.sap.caf.designer.ui
code=0
com.sap.caf.foundation.caf_import.CAFDTImportException
com.sap.caf.foundation.caf_import.CAFDTImportException
at com.sap.caf.foundation.caf_import.wsdl.CAFDTWSDLImporter.doImport(CAFDTWSDLImporter.java:208)
at com.sap.caf.designer.ui.actions.es.WSDownloadAction$1.run(WSDownloadAction.java:441)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)
Nested exceptions :java.lang.NullPointerException
atcom.sap.caf.foundation.mfw.util.WSDLUtils.gatherImportedSchemas(WSDLUtils.java:786)
atcom.sap.caf.foundation.mfw.util.WSDLUtils.gatherImportedSchemas(WSDLUtils.java:792)
atcom.sap.caf.foundation.caf_import.wsdl.CAFDTWSDLImporter.tranformImportedWSDLs(CAFDTWSDLImporter.java:402)
atcom.sap.caf.foundation.caf_import.wsdl.CAFDTWSDLImporter.doImport(CAFDTWSDLImporter.java:197)
atcom.sap.caf.designer.ui.actions.es.WSDownloadAction$1.run(WSDownloadAction.java:441)
atorg.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)
Status ERROR
Plugin : com.sap.caf.designer.ui
code=0
java.lang.NullPointerException
java.lang.NullPointerException
at com.sap.caf.foundation.mfw.util.WSDLUtils.gatherImportedSchemas(WSDLUtils.java:786)
at com.sap.caf.foundation.mfw.util.WSDLUtils.gatherImportedSchemas(WSDLUtils.java:792)
at com.sap.caf.foundation.caf_import.wsdl.CAFDTWSDLImporter.tranformImportedWSDLs(CAFDTWSDLImporter.java:402)
at com.sap.caf.foundation.caf_import.wsdl.CAFDTWSDLImporter.doImport(CAFDTWSDLImporter.java:197)
at com.sap.caf.designer.ui.actions.es.WSDownloadAction$1.run(WSDownloadAction.java:441)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)
==================
Can anyone give me some guides on how to solve this problem?
Thank you very much.
Regards,
Wan Loong

Hi Andre,
Thanks for the reply,
but the scenerio is like this,
I have some web services which are talking to MDM,
like create, update and delete master data in MDM,
Now I want to create a CAF application using Guided procedures and want to put it on Portal,
So that different actions can be done based on authorizations,
Now what I have done
I have created a CAF application in which for each webservice, I have created an entity service then an application service,
so that I can create Callable Objects for those app services and then create a GP,
Now where I am stucked?
After creating entity service, when I create a record in entity service, so that corressponding webservice mapped can be run, I get this error
Error: Invalid Address
Now please tell me where i am wrong?
Am I following the right approach?
Please advice..
waiting for the valuable opinion.
Thanks,
Deepak

What is HANA extended Application services and what is its use ?

Hi,
What is SAP HANA extended application services and what is the use of it under Development Perspective ?.
Regards
Pavneet Rana

Hi Pavneet,
Here are two more links which you can find some new features like HDBDD, Outbound Connectivity, Job Scheduling, etc..
SAP HANA SPS6 - Various New Developer Features
SAP HANA SPS07 - Various New Developer Features
Best regards,
Wenjun

What is Composite Application Services?

Similar Messages

Maybe you are looking for