Dereferencing in ABAP?

Hi Friends,
I was going through a Standard Program when i came across an ASSIGN statement that goes something like this...
ASSIGN i_rsthie_rep-ptr->* TO <FS>
What does this mean?. Are they trying to assign the value of the structure directly to a field symbol?. Is 'ptr' a keyword?.

ptr is not a keyword.
it is assigning structure i_rsthie_rep-ptr->* to field symbol <FS>
check the abap key word documentation for ASSIGN - mem_area - dref->*
Regards
Raja

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IDOC-XI-FILE Scenario: Error in ABAP Mapping

Dear All,
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structure to a flat file and vice versa in XI 3.0".
I created one customized Idoc for this. The Idoc is reacing XI but its flat file is not getting created. Its giving me following error:
<SAP:Stack>Error in mapping program Z_ABAP_MAPPING_PACKING_LIST (type SAP-ABAP, kernel error ID UNCAUGHT_EXCEPTION) An exception with the type CX_SY_REF_IS_INITIAL occurred, but was neither handled locally, nor declared in a RAISING clause Dereferencing of the NULL reference.</SAP:Stack>
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I have also gone thru threads posted for the same topic earlier but still I am not been to resolve this error.
Please help me out in resolving this error.
Regards,
N.Jain

HI,
   Log saying that, u have problem in the mapping program.
i.e Z_ABAP_MAPPING_PACKING_LIST
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warm regards
mahesh.

Dereferencing the NULL reference while saving a Survey

While saving a survey first time, I am getting an error message "Dereferencing the NULL reference".
More details as follows:
Exception: Class CX_SY_REF_IS_INITIAL
Program: CL_SVY_H_SVYDETAIL_IMPL=======CP
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ABAP Class: CL_SVY_H_SVYDETAIL_IMPL
Method: DO_PREPARE_OUTPUT
Line: 26
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I opened the Survey creation page in crm ui, and filled in the ID, Application as Marketing and selected CSS Style Sheet as CRM_SVY_OPP_WINLOSS.CSS
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Regards,
Harsh

Are you using internal CATT Server? If yes then you might need to turn on the CATT server again, see below:
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Hi ,
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Best Regards
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Have u seen the ABAP mapping guide?
Refer this series to the ABAP mapping section.https:///people/sravya.talanki2/blog/2006/12/26/aspirant-to-learn-sap-xiyou-won-the-jackpot-if-you-read-this-part-ii
It will be very handy and useful.

ABAP Mapping Programm error Urgent

I am getting mapping error in ABAP Mapping programm. plz help me how to solve
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
- 
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<SAP:Category>Application</SAP:Category>
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<SAP:P3>UNCAUGHT_EXCEPTION</SAP:P3>
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<SAP:AdditionalText />
<SAP:ApplicationFaultMessage namespace="" />
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Hi,
I think this exception you need to catch it in the ABAP..
This may help u- http://help.sap.com/saphelp_47x200/helpdata/en/55/bff20efe8c11d4b54a006094b9456f/content.htm
just cross verify with this guide-
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e3ead790-0201-0010-64bb-9e4d67a466b4
Regards,
moorthy

What is field symbols in abap

hi
what is field symbols in abap in which scenario we can use filed symbols?
Moderator message : Search for available information, thread locked.
Edited by: Vinod Kumar on Dec 16, 2011 5:11 PM

Hai,
Generally, we use the explicit work area to process the internal table like appending & modifying records. We can reduce the time and improve the performance of the program by using the field-symbols. When we use the LOOP construct with the explicit work area, system need to engage the resources to put the required record in the work area, process it and move it back to the table if the needed. This additional processing time could be saved by using the field-symbol. By using the field-symbols we can save this additional time and improve the performance. Field-symbols are similar to dereferenced pointers in C. While using the field-symbol, system uses the same memory allocated to that particular field in the record instead of moving it to work area and processing
field symbols
Edited by: Ravi.Seela on Dec 16, 2011 7:53 AM

Exception when calling ABAP Proxy modelled in SAP PI: CL_SOAP_RUNTIME_ROOT

Hi,
We have a scenario where we:
1. Modell an interface in SAP PI
This interface contains a complex type from a different namespace
2. Use it to create an ABAP proxy in backend system
3. Configure it with SOAManager
4. Call the ABAP proxy ws directly from a third-party system (biztalk)
We're currently testing calling the ABAP proxy from soapUI, but get a strange exception thrown by the SOAP framework in ABAP backend.
The test in soapUI is setup by importing the WSDL acquired from SOAMANAGER.
The error message we in the SOAP response is:
CX_SY_REF_IS_INITIAL:Exception CX_SOAP_ROOT occurred
(program: CL_SOAP_RUNTIME_ROOT==========CP, include: CL_SOAP_RUNTIME_ROOT==========CM004, line: 130)..
An exception with the type CX_SY_REF_IS_INITIAL occurred, but was neither handled locally,
nor declared in a RAISING clause.Dereferencing of the NULL reference
It is a very low level error from the CL_SOAP_RUNTIME_ROOT program and not a descriptive error message at all.
We've checked the user and the authorizations it has, we've redone the SOAManager config but the problem persists.
We find no dumps in the ABAP proxy since the request never reaches it.
For a limited time I'll make WSDL and SOAP response available
WSDL (some values anonymized) available at http://dl.dropbox.com/u/4379928/SOAP/project.wsdl
Complete SOAP response is available at http://dl.dropbox.com/u/4379928/SOAP/soap_data.xml
Any ideas on where to look?

Hi,
We've now managed to implement a workaround.
The workaround was to create the endpoint in PI as well.
So that the traffic goes from third-party solution->PI-> WS-enabled ABAP Proxy
When we did this initially, we got some errors related to the asynch method of this call, but this was resolved by changing the channel from "best effort" to "Guaranteed delivery".
Still we don't know what the root cause of the initial problem was, but we assume it is related to the asynch nature of the service (though we have other asynch proxies that work without problems).
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Dagfinn

Do we have pointers in abap?

Hi experts,
do we have pointers in abap as in C or C++.
my requirements is something like..
i have dynamic data i have to store that in an internal table's field , which is also decided at runtime.
all the suggestions are welcome.
Thanks,
Ashish

Hi Ashish,
Field symbols are similar to dereferenced pointers in C (that is, pointers to which the content operator * is applied). However, the only real equivalent of pointers in ABAP, that is, variables that contain a memory address (reference) and that can be used without the contents operator, are reference variables in ABAP Objects. (For more information, see Data References).
All operations programmed with field symbols are applied to the field assigned to it. For example, a MOVE statement between two field symbols moves the contents of the field assigned to the first field symbol to the field assigned to the second field symbol. The field symbols themselves point to the same fields after the MOVE statement as they did before.
You can create field symbols either without or with type specifications. If you do not specify a type, the field symbol inherits all of the technical attributes of the field assigned to it. If you do specify a type, the system checks the compatibility of the field symbol and the field you are assigning to it during the ASSIGN statement.
Field symbols provide greater flexibility when you address data objects:
If you want to process sections of fields, you can specify the offset and length of the field dynamically.
You can assign one field symbol to another, which allows you to address parts of fields.
Assignments to field symbols may extend beyond field boundaries. This allows you to address regular sequences of fields in memory efficiently.
You can also force a field symbol to take different technical attributes from those of the field assigned to it.
The flexibility of field symbols provides elegant solutions to certain problems. On the other hand, it does mean that errors can easily occur. Since fields are not assigned to field symbols until runtime, the effectiveness of syntax and security checks is very limited for operations involving field symbols. This can lead to runtime errors or incorrect data assignments.
While runtime errors indicate an obvious problem, incorrect data assignments are dangerous because they can be very difficult to detect. For this reason, you should only use field symbols if you cannot achieve the same result using other ABAP statements.
Before you can work with a field symbol, you must assign a data object to it. If you attach a structure to a field symbol, you assign a data object to it in the declaration. Untyped field symbols point to the predefined data object SPACE once the program starts. SPACE has type C and length 1. Typed field symbols do not point to any field before a data object is assigned to them.
During a program, you can assign data objects to field symbols at any time. You can also assign a series of different data objects to the same field symbol during a program.
To assign a data object to a field symbol, use the ASSIGN statement. The ASSIGN statement has several variants and parameters.
check this link for detailed description..
http://help.sap.com/saphelp_bw31/helpdata/en/fc/eb38c8358411d1829f0000e829fbfe/frameset.htm
regards,
Manikandan R

Issue in Creation of XML file from ABAP data

Hi,
I need to create a XML file, but am not facing some issues in creation of XML file, the in the required format.
The required format is
-<Header1 1st field= u201CValueu201D 2nd field= u201CValueu201D>
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          <Header4 1st field= u201CValueu201D 2nd field= u201CValueu201Du2026u2026. Upto 4 fields/.>
           <Header5 1st field= u201CValueu201D 2nd field= u201CValueu201Du2026u2026. Upto 6 fields/>
      </Header2>
   </Header1>
Iu2019m using the call transformation to convert ABAP data to XML file.
So please anybody can help how to define XML structure in transaction XSLT_TOOL.
And one more thing, here I need to put the condition to display the Header 3, Header 4, Header 5 values. If there is no record for a particular line item in header 3, 4 & 5, I donu2019t want to display full line items; this is only for Header 3, 4 & 5.
Please help me in this to get it resolved.

Hello,
you can use CALL TRANSFORMATION id, which will create a exact "print" of the ABAP data into the XML.
If you need to change the structure of XML, you can alter your ABAP structure to match the requirements.
Of course you can create your own XSLT but that is not that easy to describe and nobody will do that for you around here. If you would like to start with XSLT, you´d better start the search.
Regards Otto

Logical command in ABAP.....Urgent

Hi,
i am pretty new using ABAP program so i neeed help urgently. i am trying to move a file on the application server from one directory to the other and i was using the open dataset function to do that. but the file i am trying to move is pretty big and because i am using internal table to store, it is causing problems with the space.
i have consulted the basis guys and they have managed to create a logical file for copying from one directory to the other on the application server. to help you furthter. i am enclosing the mail sent to me.
I have created a logical command which should copy the file from one location to the other but you need to pass it the source dir and file name and the destination dir and file name.
The logical command is ZCOPY and uses cmd /c copy
Copies one or more files to another location.
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source       Specifies the file or files to be copied.
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/B           Indicates a binary file.
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/V           Verifies that new files are written correctly.
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Ravi.

If memory is not an issue, then there should be no reason why this should not work.
report zrich_0001.
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start-of-selection.
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open dataset d1 for input in text mode.
if sy-subrc = 0.
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endif.
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open dataset d2 for output in text mode.
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endloop.
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delete dataset d1.
Regards,
Rich Heilman

Logical Database in Abap Objects

Hi to All
I want do it a program report using a Logical Database.
Is this possible ??? But when I make a GET <node>, occurs the following error:
         "" Statement "ENDMETHOD" missing. ""
I'm doing the following:
CLASS MONFIN IMPLEMENTATION.
       METHOD TRAER_DATOS.
               GET VBRK.
       ENDMETHOD.
ENDCLASS.
Please, somebody tell me how I use the logical database in Abap Objects.
Thank you very much
Regards
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Hi there
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Hi Friends,
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regards,
vijay.

hi
HR Logical Databases
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PAP
PCH
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Logical Database PCH
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Logical Database PAP
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regards
navjot
reward if helpfull

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GP

Thank you for your help,
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Hi All,
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obj_footer->create_text(
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Dereferencing in ABAP?

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