Code Structure Problem

My description really isn't that great, i found it quite difficult to explain so please ask if you have any more questions.
I have an Abstract class Called Animal, and two subclasses of this (which obviously extend Animal). The animal class implements an actor interface class called Actor in which there are 2 methods defined, one called act and the other called isAlive() .
My programme does a simulation of wild life, one of the animals kills the other (only 2 at the moment) and this was already implemented by the teacher, our job now is to do a few tasks which i have previously done and now the second to last task is to create a hunter.
The principle is that this new Hunter must define a new actor, ie an implementation of Actor(which means my new class Hunter has to implement the Actor class?)and must be a non animal, i chose a human, though it could have been the weather or some other scenario.
I based the new class on that of the hunter of the two animals.This is fine and it works, however i have some serious code duplication between the Hunter class and one of the animal classes of which i can see no solution too, this worries me as code duplication isn't good and i was hoping maybe someone could help me out with some tips for potential changes to the structure.
Regards

and must be a non animal, i chose a human, So are you claiming to be a mineral, or a maybe vegetable? Of course humans are Animals! This simple fact of reality invalidates your current model, leading to code duplication.
I suggest that you chose another scenario... Fire is-a Killer... I suppose one could define Fire in terms of an Actor having methods: act and isAlive ... fires burn and kill, and then they go out.
Edit:
Poignant at [the moment|http://images.google.com/images?q=victorian+bushfires].
could anyone point me to the java tutorials on delegation please?Ummm... I'm unaware of any... but the general idea is certainly explained by many online resources... google for "delegate pattern"... and yes (IMHO) that's a preferable solution your code duplication woes than defining some dodgy abstract super class... because type inheritance (interfaces) is more flexible than implementation inheritance (classes).
Cheers. Keith.
Edited by: corlettk on 1/03/2009 22:33 ~~ Typos, and stuff.

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hi all,
I am extracting data using FM
from PAYR and REGUH.
I need:
Payr
doc1 ven01.........filds.a b c.
doc2 ven02.........filds..
doc3 ven02.........filds..
doc4 ven03.........filds..
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doc2 ven02.........filds..
doc3 ven02.........filds..
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I wrote code:
========
error : It returns dump..
saying : INDEX problem..?
Modify e_t_data index sy-tabix.
FUNCTION z_biw_payr_get_data .
""Local interface:
*" IMPORTING
*"     VALUE(I_REQUNR) TYPE SRSC_S_IF_SIMPLE-REQUNR
*"     VALUE(I_DSOURCE) TYPE SRSC_S_IF_SIMPLE-DSOURCE OPTIONAL
*"     VALUE(I_MAXSIZE) TYPE SRSC_S_IF_SIMPLE-MAXSIZE OPTIONAL
*"     VALUE(I_INITFLAG) TYPE SRSC_S_IF_SIMPLE-INITFLAG OPTIONAL
*"     VALUE(I_READ_ONLY) TYPE SRSC_S_IF_SIMPLE-READONLY OPTIONAL
*"     REFERENCE(I_REMOTE_CALL) TYPE SBIWA_FLAG DEFAULT
*"       SBIWA_C_FLAG_OFF
*" TABLES
*"      I_T_SELECT TYPE SRSC_S_IF_SIMPLE-T_SELECT OPTIONAL
*"      I_T_FIELDS TYPE SRSC_S_IF_SIMPLE-T_FIELDS OPTIONAL
*"      E_T_DATA STRUCTURE ZBIW_AP_PAYR OPTIONAL
*" EXCEPTIONS
*"      NO_MORE_DATA
*"      ERROR_PASSED_TO_MESS_HANDLER
Example: DataSource for table SFLIGHT
TABLES: payr.
Auxiliary Selection criteria structure
DATA: l_s_select TYPE srsc_s_select.
Maximum number of lines for DB table
STATICS: s_s_if TYPE srsc_s_if_simple,
counter
          s_counter_datapakid LIKE sy-tabix,
cursor
          s_cursor TYPE cursor.
*internal tables:
I_payr like payr occurs 0 with header line.
I_reguh like reguh occurs 0 with header line.
Select ranges
RANGES: l_r_gjahr   FOR zap_payr-gjahr,
          l_r_vblnr   FOR zap_payr-vblnr,
          l_r_zbukr   FOR zap_payr-zbukr.
Initialization mode (first call by SAPI) or data transfer mode
(following calls) ?
IF i_initflag = sbiwa_c_flag_on.
Initialization: check input parameters
                buffer input parameters
                prepare data selection
please Check DataSource validity
    CASE i_dsource.
      WHEN 'ZAP_PAYR'.
      WHEN OTHERS.
        IF 1 = 2. MESSAGE e009(r3). ENDIF.
this is a typical log call. Please write every error message like this
        log_write 'E'                  "message type
                  'R3'                 "message class
                  '009'                "message number
                  i_dsource   "message variable 1
                  ' '.                 "message variable 2
        RAISE error_passed_to_mess_handler.
    ENDCASE.
    APPEND LINES OF i_t_select TO s_s_if-t_select.
Fill parameter buffer for data extraction calls
    s_s_if-requnr    = i_requnr.
    s_s_if-dsource = i_dsource.
    s_s_if-maxsize   = i_maxsize.
Fill field list table for an optimized select statement
(in case that there is no 1:1 relation between InfoSource fields
and database table fields this may be far from beeing trivial)
    APPEND LINES OF i_t_fields TO s_s_if-t_fields.
ELSE.                 "Initialization mode or data extraction ?
Data transfer: First Call      OPEN CURSOR + FETCH
               Following Calls FETCH only
First data package -> OPEN CURSOR
    IF s_counter_datapakid = 0.
Fill range tables BW will only pass down simple selection criteria
of the type SIGN = 'I' and OPTION = 'EQ' or OPTION = 'BT'.
      LOOP AT s_s_if-t_select INTO l_s_select WHERE fieldnm = 'GJAHR'.
        MOVE-CORRESPONDING l_s_select TO l_r_gjahr.
        APPEND l_r_gjahr.
      ENDLOOP.
      LOOP AT s_s_if-t_select INTO l_s_select WHERE fieldnm = 'VBLNR'.
              MOVE-CORRESPONDING l_s_select TO l_r_vblnr.
        APPEND l_r_vblnr.
      ENDLOOP.
      LOOP AT s_s_if-t_select INTO l_s_select WHERE fieldnm = 'ZBUKR'.
        MOVE-CORRESPONDING l_s_select TO l_r_zbukr.
        APPEND l_r_zbukr.
      ENDLOOP.
Determine number of database records to be read per FETCH statement
from input parameter I_MAXSIZE. If there is a one to one relation
between DataSource table lines and database entries, this is trivial.
In other cases, it may be impossible and some estimated value has to
be determined.
Extracts from Tableu2026..1
      OPEN CURSOR WITH HOLD s_cursor FOR
      SELECT mandt zbukr hbkid hktid rzawe chect checf laufd laufi lifnr
        kunnr empfg ubhkt vblnr gjahr zaldt waers rwbtr strgb pridt
        priti prius xmanu xbanc bancd extrd extrt xbukr zanre znme1
        znme2 znme3 znme4 zpstl zort1 zstra zpfac zland zregi zbnks
        zbnkn zbnkl zbkon voidr voidd voidu checv hbkiv hktiv zpst2
        xragl pernr seqnr btznr rec_belnr rec_gjahr zpfor uzawe ichec
        irefe rwskt
      FROM payr
      WHERE zbukr IN l_r_zbukr
            AND   vblnr IN l_r_vblnr
      AND   gjahr IN l_r_gjahr.
    AND   rzawe EQ 'C'.
    ENDIF.                             "First data package ?
Fetch records into interface table.
named E_T_'Name of extract structure'.
    FETCH NEXT CURSOR s_cursor
               APPENDING CORRESPONDING FIELDS
               OF TABLE e_t_data
               PACKAGE SIZE s_s_if-maxsize.
    IF sy-subrc <> 0.
      CLOSE CURSOR s_cursor.
      RAISE no_more_data.
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**get all u2018Du2019 and 2 series VBLNR records from REGUH
_** --- CHECK the codes for WITH CASE 1 OR CASE 2._
Case 1 :
*Select * from reguh*
     Into corresponding fields of table i_reguh
     For all entries in e_t_data
     Where lifnr = e_t_data-lifnr
      And rzawe = u2018Du2019
      and Vblnr like u20182%u2019.
Or u2026u2026 Or u2026u2026 Or u2026u2026
Case2 :
*Select * from reguh*
     Into corresponding fields of table i_reguh
     Where rzawe = u2018Du2019
      and Vblnr like u20182%u2019.
Loop at e_t_data.
Read table i_reguh with key lifnr = e_t_data-lifnr
    If sy-subrc = 0.
      E_t_data-laufi like reguh- laufi.
      E_t_data-Zbukr like reguh-zbukr.
      E_t_data-lifnr like reguh- lifnr .
      E_t_data-empfg like reguh- empfg.
      E_t_data-vblnr like reguh-vblnr
      E_t_data-waers like reguh-waers
      E_t_data-srtgb like reguh-srtgb.
      E_t_data-znme1 like reguh- znme1.
      E_t_data-znme2 like reguh- znme2.
      E_t_data-znme3 like reguh- znme3.
      E_t_data-znme4 like reguh- znme4.
      E_t_data-zpstl like reguh-zpstl.
      E_t_data-zort1   like reguh-zortl.
      E_t_data-zstra like reguh-zstra.
      E_t_data-zpfac like reguh-zpfac.
      E_t_data-zland like reguh-zland.
      E_t_data-zregi like reguh-zregi.
      E_t_data-zbnkl like reguh-zbnkl.
      E_t_data-rzawe like reguh-rzawe.
      E_t_data-hktid like reguh-hktid.
      E_t_data-hbkid like reguh-hbkid.
      E_t_data-zpst2 like reguh-zpst2.
      E_t_data-uzawe like reguh-uzawe.
            E_t_data-pernr like reguh-pernr.
     E_t_data-btznr like reguh-btanr.
     E_t_data-laufd like reguh-laufd.
     E_t_data-zaldt like reguh-zaldt.
     E_t_data-rwbtr like reguh-rwbtr.
     E_t_data-rwskt like reguh-rwskt.
     Modify e_t_data index sy-tabix.
Else.
     E_t_data-laufi like reguh- laufi.
            E_t_data-Zbukr like reguh-zbukr.
     E_t_data-lifnr like reguh- lifnr .
     E_t_data-empfg like reguh- empfg.
     E_t_data-vblnr like reguh-vblnr
     E_t_data-waers like reguh-waers
     E_t_data-srtgb like reguh-srtgb.
     E_t_data-znme1 like reguh- znme1.
     E_t_data-znme2 like reguh- znme2.
     E_t_data-znme3 like reguh- znme3.
     E_t_data-znme4 like reguh- znme4.
     E_t_data-zpstl like reguh-zpstl.
     E_t_data-zort1   like reguh-zortl.
     E_t_data-zstra like reguh-zstra.
     E_t_data-zpfac like reguh-zpfac.
     E_t_data-zland like reguh-zland.
     E_t_data-zregi like reguh-zregi.
     E_t_data-zbnkl like reguh-zbnkl.
     E_t_data-rzawe like reguh-rzawe.
     E_t_data-hktid like reguh-hktid.
     E_t_data-hbkid like reguh-hbkid.
     E_t_data-zpst2 like reguh-zpst2.
     E_t_data-uzawe like reguh-uzawe.
     E_t_data-pernr like reguh-pernr.
     E_t_data-btznr like reguh-btanr.
     E_t_data-laufd like reguh-laufd.
     E_t_data-zaldt like reguh-zaldt.
     E_t_data-rwbtr like reguh-rwbtr.
     E_t_data-rwskt like reguh-rwskt.
Modify e_t_data index sy-tabix.
Endif.
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    SORT itab BY chect.
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      wa_hbkid = itab-hbkid.
      wa_hktid = itab-hktid.
      wa_rzawe = itab-rzawe.
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        SELECT SINGLE * FROM payr WHERE
        zbukr = wa_zbukr AND
        hbkid = wa_hbkid AND
        hktid = wa_hktid AND
        rzawe = wa_rzawe AND
        chect = wa_chect.
        IF sy-subrc NE 0.
Not transferring this record to BW
      message 'Invalid Check No.' type 'I'.
          DELETE itab.
          wa_found = 'Y'. EXIT.
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        IF ( payr-voidu NE space ) AND ( payr-voidd NE space ).
          wa_chect = payr-checv.
          wa_zbukr = payr-zbukr.
          wa_hbkid = payr-hbkid.
                    wa_hktid = payr-hktid.
          wa_rzawe = payr-rzawe.
If the Replacement Check # points to Original Check No., this record
will be skipped.
          IF itab-chect = payr-checv.
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            EXIT.
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          MOVE-CORRESPONDING payr TO itab.
          APPEND itab. wa_found = 'Y'.
          MOVE-CORRESPONDING itab TO itab1.
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          EXIT.
        ENDIF.
        IF wa_found = 'Y'.
          EXIT.
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    rzawe chect.
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      hbkid = itab1-hbkid
      hktid = itab1-hktid
      rzawe = itab1-rzawe
      chect = itab1-chect BINARY SEARCH.
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04/13/08 commented to satisfy 4th condition
Do not extract the Original record of the replaced Check
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        ( itab-voidd IS NOT INITIAL ).
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04/13/08 commented to satisfy 4th condition
Logic for eliminating voided Checks End
***The below process can be used for Delta Extraction using Time Stamp
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    e_t_data[] =    itab[].
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ENDIF.              "Initialization mode or data extraction ?
ENDFUNCTION.
=========
Please advise me and where will i correct the code.
Thanks in advance,
Siri.
Edited by: SIRI SIRI on Jun 3, 2008 3:26 PM

Hi,
use the following:
define a index variable.
data: l_index type sy-tabix.
in your loop at e_t_data.
loop at e_t_data.
new statement
l_index = sy-tabix.
changed statement
modify e_t_data index l_index.
endloop.
The other read operations on internal tables will reset sy-tabix so that it will point to a invalid record.
regards
Siggi

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          sapDoc.setDocDate(new Date());
          sapDoc.setDocDueDate(new Date());
          sapDoc.setSalesPersonCode(srcDoc.getSalesPersonCode());
          sapDoc.setDocCurrency(srcDoc.getDocCurrency());
          sapDoc.setPaymentGroupCode(srcDoc.getPaymentGroupCode());
          sapDoc.setTransportationCode(srcDoc.getTransportationCode());
          sapDoc.setContactPersonCode(srcDoc.getContactPersonCode());
          // sapDoc.setDiscountPercent(0.0);
          sapDoc.setComments("zwrot towaru");
          // sapDoc.setDocTotal(0.0);
          sapDoc.setVatDate(srcDoc.getVatDate());
          // items
          IDocument_Lines lines = sapDoc.getLines();
          int lineno = 0;
          IDocument_Lines srcLines = srcDoc.getLines();
          for (int i = 0; i < srcLines.getCount(); i++) {
               srcLines.setCurrentLine(i);
               logger.debug("line " + i + ", item: " + srcLines.getItemCode());
               if (lineno > 0)
                    lines.add();
               lines.setCurrentLine(lineno++);
               lines.setItemCode(srcLines.getItemCode());
               lines.setItemDescription(srcLines.getItemDescription());
               lines.setWarehouseCode(srcLines.getWarehouseCode());
               lines.setPrice(srcLines.getPrice());
               lines.setDiscountPercent(srcLines.getDiscountPercent());
               lines.setTaxCode(srcLines.getTaxCode());
               lines.setBaseEntry(srcDocEntry);
               lines.setBaseType(srcDoc.getDocObjectCode());
               lines.setBaseLine(i);
               lines.setVatGroup(srcLines.getVatGroup());
               lines
                         .setCorrectionInvoiceItem(SBOCOMConstants.BoCorInvItemStatus_ciis_Was);
               double quantity_was = srcLines.getQuantity();
               lines.setQuantity(quantity_was);
          for (int i = 0; i < srcLines.getCount(); i++) {
               srcLines.setCurrentLine(i);
               logger.debug("line " + i + ", item: " + srcLines.getItemCode());
               if (lineno > 0)
                    lines.add();
               lines.setCurrentLine(lineno++);
               double quantity_diff = 0;
               lines.setItemCode(srcLines.getItemCode());
               lines.setWarehouseCode(srcLines.getWarehouseCode());
               lines.setPrice(srcLines.getPrice());
               lines.setDiscountPercent(srcLines.getDiscountPercent());
               lines.setTaxCode(srcLines.getTaxCode());
               lines.setBaseEntry(srcDocEntry);
               lines.setBaseType(srcDoc.getDocObjectCode());
               lines.setBaseLine(i);
               lines.setVatGroup(srcLines.getVatGroup());
               lines
                         .setCorrectionInvoiceItem(SBOCOMConstants.BoCorInvItemStatus_ciis_ShouldBe);
               double quantity_was = srcLines.getQuantity();
               double quantity_is = 0; //quantity_was - quantity_diff;
               lines.setQuantity(quantity_is);
          int result = sapDoc.add();
          String info = company.getLastErrorDescription();
          logger.debug("res = " + result + ", info: " + info);
          if (result != 0)
               throw new EBladKorektyNrPartii(
                         "Cannot create document: " + info);
Edited by: WodzGalopujacySkleroz on Jul 4, 2011 5:03 PM

Hello,
Maybe it's an old thread, and you might have the solution or workaround for this. Nonetheless i try to answer, it might be useful for those trying to find a solution for the same problem.
The two loops are necessary indeed. DI API expects only this structure: Start with all the "ShouldBe" lines, and follow them with all the "Was" lines. So your code is almost good, but you should have swap the two loops with each other.

Event structure problem

HI!
I am a Labview Newbie and i have some problems with my event structure in the program "Biegelinie"! I get always failure from the event-structure in the failure-list!
Could somebody help me???
best regards,
Peter
Labview 7.1 on Windows 2000
Attachments:
program.zip ‏134 KB

For a less complicated system, you can achieve nearly the same
functionality without using an event structure. Simply poll the
state of the booleans you require and feed them into case
structures. By placing these case structures and the polling into
a loop with a "wait until ms multiple" set to around 50 or 100ms, the
responsiveness of the code should be high enough without bogging the
processor down with the polling.
If you want have a look at the example VI I've attached.
Hope this helps
Shane.
PS Are you sure the document linked below is relevant for you? It
states that the event handler isn't in the base 6.1 version of LabVIEW,
but your sig says you're using 7.1........
Message Edited by shoneill on 07-25-2005 11:30 AM
Using LV 6.1 and 8.2.1 on W2k (SP4) and WXP (SP2)
Attachments:
Polling boolean.vi ‏23 KB

Cause Code - Structure for Plant Maintenance Notification

Dear firends,
I am trying to create cause code group structure for a notification as follows,
--> Superior Level Cause Code Group ( XXXX)
                    - -> Cause Code Group (XXXX-SUB)
                                   - -> Cause Code ... (1010)
In standard SAP we can create a Cause code group for a catalog then assign the Cause codes to the Cause code groups then assign to the Catalog profile ...and the structure looks like as follows (AS IS)
        - -> Cause Code Group(XXXX-SUB)
                                   - -> Cause Code ...(1010)
But in my case i need to add one more level above the "Cause Code Group" as shown below ( TO BE)
--> Superior Level Cause Code Group ( XXXX)
                    - -> Cause Code Group (XXXX-SUB)
                                   - -> Cause Code ... (1010)
Please assist me is there any way to accomplish this requirement through user exit or something else.Thanks.
Regards,
MJ.
Edited by: MJ Masi on Sep 23, 2009 10:43 PM

Babu,
Do the Divisions have its own Equipment base?          - Ans : NO
Do they create Notification for the same Equipment?   - ANS : YES
So, lets take the case 2 you mentioned ...
Case2:
If they are creating notification for a same equipment (EQ01 is common for all Divisions), you can create Defect code group with Division Name CHEMDEF1, CHEMDEF2,... BIODEF1, BIODEF2... etc ...
User has to select appropriate Defect code group and defect code.... If he enters Def code as Cause code group system will populate caused relevant for particular Def Code ...
Problem here is lets say the Defect Code Group CHEMDEF1 has two defect code A010 & A020 ,
                                                                              CHEMDEF2 has three defect code B010, B020 & B030.
I would like to bring this Defect Code Group CHEMDEF1 & CHEMDEF2 under DIV1 and Defect Code Group BIODEF1 & BIODEF2 under DIV2.
Example : The structure should look like this ..
                - DIV1 ( Superior level needs to be added on the Structure) - Will it be possible ?
                        - CHEMDEF1 ( Defect Code Group)
                                       - A010 ( Defect Code)
                                       - A020( Defect Code)
                        - CHEMDEF2( Defect Code Group)
                                       - B010( Defect Code)
                                       - B020( Defect Code)
                                       - B030( Defect Code)
                - DIV2 ( Superior level needs to be added on the Structure) - Will it be possible ?
                        - BIODEF1
                                       - C010
                                       - C020
                        - BIODEF2
                                       - D010
                                       - D020
                                       - D030
Please let me know.Thanks.
Regards,
MJ Masi

Code Structure / Component Question

I'm new to Flex and trying to learn as much as I can on my own without help, but I've run into a question that I'm not finding an answer for.
I've read about creating MXML components and understand that, as well as creating AS classes, that that makes sense too.
I have code in the default package which displays the Datagrid component (MXML) but also has ActionScript code in the same source file to load the datagrid via PHP (HTTPService) as well as define what happens when cells are updated (sending data back to update the DB via PHP).
This is all pretty much a self-contained "component" for manipulating data from a particular MySLQ table from this single datagrid. I have the grid displayed on one tab of the tab navigator.
My problem is that I'd like to create a similar datagrid on a separate tab which does the same thing for a different table.   I know this code needs to be separated and not in one MXML file, but I'm not finding how to either structure my project to do this, or else make each datagrid (along with the associated AS code) into a separate component.
Would appreciate any help or examples you may have.
Thanks,
Gary

Thanks for pointing me in this direction -- I had started that way, but got confused. Here are the first few lines of my current code:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
                                        width="998" height="656" creationComplete="init()" layout="absolute">
          <mx:Script>
                    <![CDATA[
                              import mx.controls.Alert;
                              import mx.events.PropertyChangeEvent;
                              import mx.events.CollectionEventKind;
                              import mx.events.CollectionEvent;
                              import mx.events.DataGridEvent;
                              import mx.controls.TextInput;
                              import mx.rpc.events.ResultEvent;
                              import mx.collections.ArrayCollection;
                              import com.adobe.serialization.json.JSON;
                              import com.adobe.viewsource.ViewSource;
                              [Bindable]
                              private var callbackUrl:String;
Naturally, my datagrid tag is dozens of lines below this:
<mx:TabNavigator x="23" y="10" width="831" height="506">
<mx:Canvas width="100%" height="100%" label="Learners">
<mx:DataGrid id="dgData"
x="27"
y="19"
width="778"
Can you show me a quick example of how I'd put this together with the top tag as you described?
Thanks again,
Gary

Source code managements problems

Hi all.
I work for a coperation that mandates the use of a particular source code management software, MKS. They are moving to another solution soon, so it doesn't make sense to write an extension for it.
My objective is to use MKS to manage source changes as a standalone tool, while using JDeveloper to modify and debug application code.
I also have a requirement to put all runtime code into MKS as well, so that a complete runtime build can be performed from within any project sandbox and deployed (No 3rd party installations required). This would include jdeveloper jar files and compiled objects from other MKS / Jdeveloper projects.
So far, I've discovered that the JDeveloper project libraries are referenced by full pathname, including drive letter. This means that each develeper sandbox directory must have the same root path and drive letter or each projects libraries must be maintained seperately. Neither I think is very pretty. Is there a way to use relative pathnames?
I'm also wondering how many other problems I may encounter as I proceed. What is the intended model for supporting concurrent development using standalone source code management?
Any ideas or suggestions would be greatly appreciated.
Thanks in advance
Keith.

Yes.
The issue comes into play when developer A may be developing on c:\jdev and developer B may be developing on d:\dev\3m\jdev. I would rather not have to mandate directory structure standards for the parent directories.

Code Structure Problem

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