Web Dynpro ABAP ==> Web Dynpro Java

[Former Member]

Hi Gurus,

I've written a Web Dynpro Abap Application to maintain CRM Opportunities, working with Transaction-ID and everything (read&write) works fine.

Now, I'd like to write the same Application in Web Dynpro Java.

I'm quite new in WDJ and thus would like to have some good Howtos & Guides (using the NWDI, CMS, CBS & DTR on a remote J2EE Engine) - e.g. how do I get information out of FMs I used in Abap, like CRM_ORDERADM_H_READ_OB when writing code in Java?

Thanks in Advice,

Farid

(help will always be rewarded)

[vivek_goenka · Accepted solution]

hi Farid

After making few hit and trials, I figured out that Web Dynpro is not supporting Table Types made from the Data Element in Abap.

So first create a Structure with the Data Element and then create Table Type from the structure.

In ur case, create a structure Z_CRMT_OBJECT_GUID_STRU with the Data Element CRMT_OBJECT_GUID, now create a Table Type Z_CRMT_OBJECT_GUID_TAB of structure Z_CRMT_OBJECT_GUID_STRU.

Now use this Table Type Z_CRMT_OBJECT_GUID_TAB for import parameter IT_OBJECTS_TO_SAVE and export parameter ET_OBJECTS_NOT_SAVED.

I hope this will solve your problem.

If the problem still exist we will talk in skype.

Thanks & Regards

Vivek

[Former Member]

someone an idea?

[raja_thangamani]

Dont look at the tree. When you write the code or even when you do the mapping, you can see them.

Raja T

[Former Member]

Hi Raja,

The problem is I can not see them. I've tried the following procedure:

1. create a myModel and import Z_R_CRM_ORDER_SAVE

2. in my layout create a new model node CRM_ORDER_SAVE

3. in the context menu of this new model node I've choosen edit model binding

4. selected model class Z_R_CRM_ORDER_SAVE_INPUT and klicked next

there are 3 IV from the FM but no IT_OBJECTS_TO_SAVE.

same procedure for Z_R_CRM_ORDER_SAVE_OUTPUT (there is ET_OBJECTS_NOT_SAVED missing).

the missing nodes of course are not created and so I cannot bind InputFields to these (tried to).

this only happens with Z FMs, not with standard RFC enabled FMs.

Thanks!

Cheers,

Farid

[raja_thangamani]

ok try to reimport the Model and rebuild & reload. Once its done restart the j2ee server. Let me know whether it solve the issue.

Raja T

[Former Member]

Hi,

I've deleted the model, restarted the j2ee engine, created a new model in a new package, importet Z_R_CRM_ORDER_SAVE an get the following message:

[code]

[Warning]: Creating a connection with Metamodel language <en> failed. Continuing with language <DE>

[Fatal]: com.sap.mw.jco.JCO$Exception: Missing R3NAME=... or ASHOST=... in connect_param in RfcOpenEx

[Info]: Creating Model: MyNewModel

[Info]: Creating Model Class: Z_R_Crm_Order_Save_Input

[Info]: Creating Model Class: Z_R_Crm_Order_Save_Output

[Info]: Creating Model Class Property: Cv_Log_Handle

[Info]: Creating Model Class Property: Cv_Log_Handle

[Info]: Creating Model Class: Crmt_Exception

[Info]: Creating Model Class: Balmsghndl

[Info]: Creating Model Relation: Crmt_Exception:Msg_Handle

[Info]: Creating Model Class Property: Log_Handle

[Info]: Creating Model Class Property: Msgnumber

[Info]: Creating Model Relation: Z_R_Crm_Order_Save_Output:Et_Exception

[Info]: Creating Model Class Property: Guid

[Info]: Creating Model Class Property: _Class

[Info]: Creating Model Class Property: Code

[Fatal]: java.lang.ClassCastException: com.sap.dictionary.types.mdi2metamodel.model.SimpleType

[Info]: Creating Model Class: Crmt_Return_Objects_Struc

[Info]: Creating Model Relation: Z_R_Crm_Order_Save_Output:Et_Saved_Objects

[Info]: Creating Model Class Property: Guid

[Info]: Creating Model Class Property: Object_Id

[Fatal]: java.lang.ClassCastException: com.sap.dictionary.types.mdi2metamodel.model.SimpleType

[Info]: Creating Model Class Property: Iv_No_Bdoc_Send

[Info]: Creating Model Class Property: Iv_Save_Frame_Log

[Info]: Creating Model Class Property: Iv_Update_Task_Local

[Info]: Creating Model Relation: Z_R_Crm_Order_Save_Input:Output:Z_R_Crm_Order_Save_Output

[/code]

and same problem as discribed above (no IT_OBJECTS_TO_SAVE etc.), even after restarting the j2ee engine a second time after importing.

[Former Member]

Hello again,

meanwhile I tried this solution:

I made a new copy of CRM_ORDER_API with FM CRM_ORDER_SAVE and made it remote enabled.

In Z_R2_CRM_ORDER_SAVE i throw out all variables except IT_OBJECTS_TO_SAVE, ET_SAVED_OBJECTS, ET_EXCEPTION and ET_OBJECTS_NOT_SAVED (and IT_OBJECTS_TO_SAVE ist NOT marked optional!!).

within the source code of Z_R2_CRM_ORDER_SAVE, I just made a functioncall to the original CRM_ORDER_SAVE passing the variables mentioned above.

then I choose a new Web Dynpro, added a new model an importet Z_R2_CRM_ORDER_SAVE. but still the desired (and obligatory) import variable IT_OBJECTS_TO_SAVE is missing.

desperation grows...

Farid

[Former Member]

no one got an idea???

[raja_thangamani]

close the thread, if your issue is resolved.

Raja T

Message was edited by:

Armin Reichert

[Former Member]

Thanks for the prompt reply!

I'm using the following functions in my WDA:

CRM_ORDERADM_H_GUID_GET_OB

CRM_ORDERADM_H_READ_OB and

CRM_CUSTOMER_H_READ_OB.

I can not find these FMs when I try to select RFC modules in a model (connecting to CRM server). There are functions like CRM_ORDER_GET_ITEM_BY_EXT_KEY I could select, but thats not what I'm looking for. How do I get access to all FM available in SE37?

Thanks,

Farid

[raja_thangamani]

Refer this link: THis will explain how to access FM.

<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webdynpro/wd%20java/wdjava%20tutorials%20and%20articles%20archive/creating%20a%20web%20dynpro%20application%20accessing%20abap%20functions.pdf">Accessing ABAP Functions in Web Dynpro</a>

Raja T

[Former Member]

Hi Raja,

I am using the same guide, and as shown on page 12 I try to get one of the FMs I listet above. CRM_CUSTOMER_H_READ_OB is absolutely not available and the ORDERADM_H FMs are also unavailable, but I can find e.g. CRM_ORDER_GET_ITEM_BY_EXT_KEY.

B.t.w. there are no green dots in front of the FMs like shown on page 12 but a yellow triangle.

What do you think is the problem?

greets

Farid

[raja_thangamani]

YOu can use ONLY<b> Remote enabled</b> function module in Webdynpro, not normal function module. Thats the reason you are not getting those FM in list.

If you get yellow triangle means, it may have performance issue, becos using Table parameter in WDJ is not encouraged.

Raja T

[Former Member]

Thanks Raja!

Is there a possibility to make FMs reamote enabled? e.g. by copying them?

If not, how can I access CUSTOMER_H for example?

Farid

[raja_thangamani]

Yes if its custom function module, goto your FM via SE37 and go to <b>Attribute</b> tab, check the "<b>Remote-Enabled module</b>" radio button.

If its SAP FM, please copy & make this change.

Raja T

[Former Member]

Sorry, there are still some questions using RFC enabled FMs.

I'm using CRM_ORDER_SAVE in my WDA:

CALL FUNCTION 'CRM_ORDER_SAVE'

EXPORTING

IT_OBJECTS_TO_SAVE = lt_objects_to_save

IMPORTING

ET_SAVED_OBJECTS = lt_saved_objects

ET_EXCEPTION = lt_exceptions

ET_OBJECTS_NOT_SAVED = lt_objects_not_saved

So I made a RFC enabled copy of this FM to Z_R_CRM_ORDER_SAVE.

Now, when I import the the FM to a model class in Dev. Studio I have only the following subtree:

Model Classes

- Balmsghndl

- Crmt_Exception

--- Msg_Handle

- Crmt_Return_Objects_Struc

- Z_R_Crm_Order_Save_Input

--- Output

- Z_R_Crm_Order_Save_Output

--- Et_Exceptions

--- Et_Saved_Objects

There is no IT_OBJECTS_TO_SAVE or ET_OBJECTS_NOT_SAVED I'm using in the ABAP WD.

Same Situation for CRM_ORDER_MAINTAIN and CRM_ORDER_READ: there are varables missing, especially tables.

Is there a way to get full functionality for WDJ?

And how is the situation, when a copied and RFC enabeld FM calls an other FM within his code (e.g. CRM_ORDER_READ calls CRM_ORDER_READ_OW). should one also copy the second (called) FM (here: CRM_ORDER_READ_OW) or os this done by the system?

Thanks in advice,

Farid

[raja_thangamani]

Look at below link:

<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/webdynpro?rid=/library/uuid/49f2ea90-0201-0010-ce8e-de18b94aee2d">web Dynpro Sample Applications and Tutorials</a>

Raja T

[Former Member]

Especially that link

<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/a-c/creating%20your%20first%20web%20dynpro%20application.pdf">http://https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/a-c/creating%20your%20first%20web%20dynpro%20application.pdf</a>

helped me lot starting in WDJ.

Greets,

Domingo