ABAP thread programming simulation

Hello
I'll try to explain me well
Iu2019m creating an interface between SAP and 3 different robots
The design roughly is as follows
Thereu2019s one interface with the definition of the common methods (Abstract)
Each robot is a class that implements this interface
Iu2019d like to execute the methods of this classes using something similar at the concept of threads in JAVA (create, pause, resume, finish, abort, etc )
I think about simulating threads using jobs but i can't stop, resume a job, somebody can give me another idea¿?
Thanks and regards

I'm not familiar with threads, but I think I can understand what it is (tell me if I'm wrong).
In SAP, threads are at a higher level : jobs as you say, but more generally SAP uses the term "[workprocesses|http://help.sap.com/saphelp_nw2004s/helpdata/en/69/c24e104ba111d189750000e8322d00/frameset.htm]".
I think that threads are used to achieve better performance, but we usually don't need this level of performance in SAP as its architecture is scalable (buy more memory, more processors, etc.)
For information, In SAP, we achieve parallel execution by using [parallel RFC|http://help.sap.com/saphelp_nw04s/helpdata/en/22/0425c6488911d189490000e829fbbd/frameset.htm], via [lock concept|http://help.sap.com/saphelp_nw2004s/helpdata/en/c2/2d7037ecc92a7ee10000009b38f8cf/frameset.htm] which is based on [lock objects|http://help.sap.com/saphelp_nw2004s/helpdata/en/cf/21eea5446011d189700000e8322d00/frameset.htm].
And when we need to "serialize" execution, we use simple home-made "wait for" algorithms.
What do you mean by "robot" (machine or scan program?) Why do you exactly need threads for ? (maybe this question makes no sense but I'm not familiar as I said)
Can you create a master program which controls the executions? When everything is finished, it stops.

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Attachment 1 Desired fields
Header: Address
~ Customer number                          KNA1-KUNNR
~ Title                                               KAN1-ANRED
~ Name1                                           ADRC-NAME1
~ Name2                        ADRC-NAME2
~ Name3                                           ADRC-NAME3
~ Name4                                           ADRC-NAME4
~ PO Box                                         ADRC-PO_BOX
~ PO Box POSTAL CODE             ADRC-POST_CODE2
~ PO Box city                                  ADRC-PO_BOX_LOC
~ Telephone no1                              ADR2-TEL_NUMBER   1ST RECORD
~ Telephone no2                              ADR2-TEL_NUMBER   2ND RECORD
~ Fax number1                                 ADR3-FAX_NUMBER 1ST RECORD
~ Fax number2                                ADR3-FAX_NUMBER 2ND RECORD
~ E-mail                                            ADR6-SMTP_ADDR
~ Search item                                   ADRC-SORT1
~ Notes                                            ADRT-REMARK
Header: control data
~ VAT registration number              KAN1-STCEG
Header: Payment transactions
~Bank country key                         KNBK-BANKS
~Bank key                                      KNBK-BANKL
~Bank Account number                 KNBK-BANKN
Header: Marketing
~ Industry key                                   KNA1-BRSCH
~ Industry code 1                              KNA1-BRAN1
~ Industry code 2                              KNA1-BRAN2
~ Industry code 3                                KNA1-BRAN3
~ Industry code 4                                KNA1-BRAN4
~ Industry code 5                               KNA1-BRAN5
~Annual sales, currency, year           KNA1-UMSA1, KNA1-UWAER, KNA1-UMAH
~ Yearly no of employees, year      KAN1-JMZAH, KNA1-JMJAH
~ Fiscal year variant                          KNA1-PERIV
~Legal status                                      KNA1-GFORM
Header: Correspondence
~ Our account number at customer            KNB1-EIKTO
Header: sales
~ Sales office                                              KNVV-VKBUR
~ Customer group                                       KNVV-KDGRP
~ ABC-classification                                  KNVV-KLABC
Header: Invoice
~Tax classification                          KNVI-TAXKD
~Terms of payment key                    KNVV-ZTERM
~
Header: Contact Persons
~Title                                   KNVK-ANRED
~Name                                   KNVK-NAME1
~Advertising material                         KNVK-NMAIL
~Martial Status                         KNVK-FAMST
~Notes                                   KNVK-PARAU
~Function                              KNVK-PAFKT
~Department                              KNVK-ABTNR
Header: Partnerroles
~Personnel Number                         KNVP-PERNR
~Name of employee                         PA0001-ENAME
Header: Additional Data
~Attribute 1                              KNA1-KATR1
~Creation date                              KNA1-ERDAT
~Attribute 2                              KNA1-KATR2
~Change date of field KNA1-KATR2          CDHDR-UDATE
~Attribute 3                              KNA1-KATR3
~Attribute 4                              KNA1-KATR4
~Attribute 5                              KNA1-KATR5
~Attribute 6                              KNA1-KATR6
Attachment 2 Selection fields
~Customer number
~Sales office
~Personnel Number
~Sales Organization (default NL01)
~Industry key
~Industry codes (1 till 5)
~ABC- classification
~Creation date
~Attribute 1
~Attribute 2
~Attribute 3
~Attribute 4
~Attribute 5
Attachment 3 Customer overview + SAP Script
Customer master data sheet: 11490                 Page1
Requested by karen Dunnewold                Date: 25.08.2004
Address
(Default SAP script ADDRESS statement)
Title
Name1
Street + number
PO Box city
Country
Search term: ADRC-SORT1
Telephone 1:      ADR2-TEL_NUMBER     2: ADR2-TEL_NUMBER
Fax 1:          ADR3-FAX_NUMBER     2: ADR3-FAX_NUMBER
E-mail:          ADR6-SMTP_ADDR
Notes:           ADRT-REMARK
PO BOX
ADRC-PO_BOX
ADRC-POST_CODE2 ADRC-PO_BOX_LOC
T005T-LANDX (T005T-LAND1 = ADRC-COUNTRY)
Control data
VAT registration number:     KNA1-STCEG
Payment transactions
Country: KNBK-BANKS Bank-key: KNBK u2013 BANKL Bank account: KNBK-BANKN
Marketing
Industry           KNA1-BRSCH     Industry Description
Industry code1          KNA1-BRAN1     Industry Description
Industry code2          KNA1-BRAN2     Industry Description
Industry code3          KNA1-BRAN3     Industry Description
Industry code4          KNA1-BRAN4     Industry Description
Industry code5          KNA1-BRAN5     Industry Description
Figures
Annual Sales          KNA1-UMSA1, KNA1-UWAER in KNA1-UMAH
Employees          KNA1-JMZAH                         in KNA1-JMJAH
Legal status           KNA1-GFORM description
Customer master data sheet 11490                         Page 2
Requested by karen Dunnewold                         Date: 25.08.2004
Contact Persons
KNVK-ANRED
Mailings: KNVK-NMAIL           Notes: KNVK-PARAU
KNVK-ANRED
Mailings: KNVK-NMAIL           Notes: KNVK-PARAU
Correspondence
Our account number at customer      KNB1-EIKTO
Sales
Sales office          KNVV-VKBUR     Description
Customer group     KNVV-KDGRP     Description
ABC-classify          KNVV-KLABC
Currency          KNVV-WAERS
Invoice
Terms of payment key KNVV-ZTERM      Tax classification KNV1-TAXKD
                              Description
Partner (Leave SAP default)
Partnerrole               Number          Name
KNVP-PARVW          KNVP-KUNNR     NAME1
KNVP-PARVW          KNVP-KUNNR     NAME1
Additional data
Attribute1          kna1-katr1     Description
Attribute2          kna1-katr2     Description
Attribute3          kna1-katr3     Description
Attribute4          kna1-katr4     Description
Attribute5          kna1-katr5     Description
Attribute6          kna1-katr6     Description

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Sorry about that, didnt realise.
Hi there,
Probably a fairly simple one here (quite new to java), i'm trying to do some thread programming but I get this error.
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The bit I dont understand is that I run
this line here
this line here
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}but when I do
dataGeneratorThread.activeCount() is balks.
I check that the thread is alive first but dont no how to tell the compiler this - obviously NO_OF_DATA_GENERATORS could be 0 in which case the compiler would have issues - I just wish it was more trusting ;)
Here is some of the code
runable class{
new Thread( new ThreadController(inputBuffer,displayBuffer,juliaCalc) ).start();
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DataBuffer inputBuffer;
DataBuffer displayBuffer;
JuliaCalc juliaCalc;
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