About transaction handling

Hi,
How to handle transactios in JDBC.Is there any mechanism to lock a row which we are currently working in JDBC?Please help me.

select the row from table using for update
clause. update that row ... u've to set
atocommit to false, before selecting for update. call commit excplicitely after u've
updated the values.
Mohan E
null

Similar Messages

Is ths Transaction Handling Write or Wrong ?

I little bit hesitate about Transaction handling in my application. I want to add data to database, before do this following steps should happen
# add data to account table
# update account serial which locate another table
# add data to monthtrm table
# update monthtrm serial which locate another table
In order to success this step I used container manager transaction below show that code
@TransactionAttribute(TransactionAttributeType.REQUIRED)
    public void addNewFixDepositAccount(Account account, String cusId, String branchCode, int newSerial, String userCode) {
        try {
          //add data to account table
          this.create(account);
                //update the SystemParameter table with new saving serial
                systemParameterFacade.setFdSerial(newSerial);
          //add data to monthtrn tabel
          monthTrnFacade.create(monthTrn);
                //update the SystemParameter table with new monthtrn serial
                systemParameterFacade.setTrnSerial(nxtTranSerial);
     } catch (CopException e) {
     if (e.getStackTrace().length > 0) {
                System.out.println("Custom Massage :-" + e.getMessage());
                System.out.println("Called Class :-" + e.getCalledClass());
                System.out.println("Exception Handling Class :- " + getClass());
                System.out.println("Calling Method :-" + Thread.currentThread().getStackTrace()[1].getMethodName());
                System.out.println("Called Method :-" + e.getCalledMethod());
                System.out.println("Exception Line Number :-" + e.getStackTrace()[21].getLineNumber());
                System.out.println("Date and Time :- " + e.getDateTime());
                System.out.println("Exception Type :-" + e.getCause().toString());
            } else {
                System.out.println("Custom Massage :-" + e.getMessage());
                System.out.println("Called Class :-" + e.getCalledClass());
                System.out.println("Exception Handling Class :- " + getClass());
                System.out.println("Calling Method :-" + Thread.currentThread().getStackTrace()[1].getMethodName());
                System.out.println("Called Method :-" + e.getCalledMethod());
                System.out.println("Date and Time :- " + e.getDateTime());
                System.out.println("Exception Type :-" + e.getCause().toString());
}   Add data to account
    public void create(Account account) throws CopException {
        try {
            em.persist(account);
            em.flush();
            em.clear();
        } catch (Exception e) {
            context.setRollbackOnly();
            throw new CopException("Can't Add Account", e, getClass().toString(), Thread.currentThread().getStackTrace()[1].getMethodName());
Add data to monthtrn
    public void create(MonthTrn monthTrn) throws CopException {
        try {
            em.persist(monthTrn);
            em.flush();
            em.clear();
        } catch (Exception e) {
            context.setRollbackOnly();
            throw new CopException("Can't Add MonthTrm", e ,getClass().toString(),Thread.currentThread().getStackTrace()[1].getMethodName());
Update Account serial
    public void setFdSerial(int fdSerial) throws CopException {
        try {
            Query query = em.createQuery("UPDATE SystemParameter s SET s.fdSerial = :fdSerial");
            query.setParameter("fdSerial", fdSerial);
            query.executeUpdate();
            em.flush();
        } catch (Exception e) {
            context.setRollbackOnly();
            throw new CopException("Can't Update FD Serial", e, getClass().toString(), Thread.currentThread().getStackTrace()[1].getMethodName());
   Update Trnserial
    public void setTrnSerial(int trnSerial) throws CopException {
        try {
            System.out.println("Trn Serial : " + trnSerial);
            Query query = em.createQuery("UPDATE SystemParameter s SET s.trnSerial = :trnSerial");
            query.setParameter("trnSerial", trnSerial);
            int result = query.executeUpdate();
            System.out.println("Number of updated records in transaction Serial :- " + result);
        } catch (Exception e) {
            context.setRollbackOnly();
            throw new CopException("Can't Update Trn Serial", e, getClass().toString(), Thread.currentThread().getStackTrace()[1].getMethodName());
    }Exception Class
package bank.exception;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import javax.ejb.ApplicationException;
* @author dinesh
@ApplicationException(rollback = true)
public class CopException extends Exception {
    private String calledClass;
    private String calledMethod;
    public String getDateTime() {
        DateFormat dateFormat = new SimpleDateFormat(" yyyy-MM-dd HH:mm:ss");
        java.util.Date date = new java.util.Date();
        return dateFormat.format(date);
    public CopException(String string, Exception ae, String className, String methodName) {
        super(string, ae);
        this.getDateTime();
        this.setCalledClass(className);
        this.setCalledMethod(methodName);
    public String getCalledClass() {
        return calledClass;
    public void setCalledClass(String calledClass) {
        this.calledClass = calledClass;
    public String getCalledMethod() {
        return calledMethod;
    public void setCalledMethod(String calledMethod) {
        this.calledMethod = calledMethod;
Is this way correctly handle Transaction? If I wrong please give me you're precious advice to improve my program efficiency, please give some comments

Sounds fine to me. If you have duplicated yourself too much, you can refactor the model later to remove duplication. If there is no duplication, then separate models was the right choice.

Web Service transaction handling

Hello,
Is it possible in SAP NW to execute several calls to Web Services in one LUW (logical unit of work)? And be able to commit or rollback?
Where can i find information about Web Service transaction handling in SAP?
Best regards
Ute

I haven't found any official info on it, but my simple testing (mainly via ST05) indicates that you should be able to call multiple web services within a single LUW - there seems to be no implicit "commit work" issued by the framework (unlike remote RFC calls).
Jonathan

Transaction Handling - JDBC Receiver Adapter - Multiple SP Calls

Hello,
I have the following scenario:
I send an XML-SQL structure with multiple statment elements (each of them calling a different stored procedure). A stored procedure raises an error back to the JDBC Receiver Adapter in case of error.
Is it possible to have transaction handling in the JDBC Receiver to ensure:
- Commit only after ALL stored procedures where succesful (no error risen during calls)
- Rollback of ALL already called stored procedures in case an error has been risen
How can I implement these requirements in the JDBC Receiver Adapter?

One more comment, I have found the following info for JDBC Drivers:
<i> "JDBC driver's default is to autocommit, meaning that the result of every SQL statement is permanent as soon as it is executed. This is why the course hasn't had to be concerned with transactions so far, and is perfectly acceptable in many cases."</i>
So I think that each SP-Call is automatically commited in case autocommit on JDBC Driver Level is set to "true". Does anyone know where I can change these settings? Directly on JDBC Receiver Adapter or do I have to go to Visual Admin for those changes?

Transaction Handling in Forte

I have a serious problem with Forte Transaction handling.
If a transaction gets aborted through the statement Transaction.Abort
(not because of a database exception), looks like some resources/locks
are not released as a result of which if the current screen is closed,
Forte does not allow the screen to be re-opened. It gives some vague
error like 'Incorrect syntax near '.'
Following is the piece of code. I would appreciate it if someone could
give me a solution.
Thanks,
Begin Transaction
commitFlag = true;
Function1(commitFlag);
if commitflag
Function2(commitFlag);
end if;
if NOT commitflag
ex :UserDefinedException = new;
Transaction.Abort(ex,true);
end if;
Exception
When ex : UserDefinedException do
End Transaction;
Function1(commitFlag In/Out)
SQL Select some_flg from some_tab;
If some_flag = 'A'
ex : UserDefinedException = new;
commitFlag = false;
raise ex;
end if;
update some_tab with some_flg;
Exception
when ex:UserDefinedException do
Function2(commitFlag In/Out)
SQL Select some_flg from another_tab;
If some_flag = 'A'
ex : UserDefinedException = new;
commitFlag = false;
raise ex;
end if;
update another_tab with some_flg;
Exception
when ex : UserDefinedException do
}

Transaction processing in FORTE is not straight forward. The wrong order
of statements may break your code. In your example I can suggest to
remove exceptions processing blocks from methods Function1 and
Function2. If transaction aborts in Function1, Function2 won't be
executed, so you don't need to use your commitFlag. You should process
an exception what is generated by transaction.abort in the same method
where transaction started or higher, otherwise it does work properly.
Hope it helps.
Igor Teselko.
RAO Meena wrote:
>
I have a serious problem with Forte Transaction handling.
If a transaction gets aborted through the statement Transaction.Abort
(not because of a database exception), looks like some resources/locks
are not released as a result of which if the current screen is closed,
Forte does not allow the screen to be re-opened. It gives some vague
error like 'Incorrect syntax near '.'
Following is the piece of code. I would appreciate it if someone could
give me a solution.
Thanks,
Begin Transaction
commitFlag = true;
Function1(commitFlag);
if commitflag
Function2(commitFlag);
end if;
if NOT commitflag
ex :UserDefinedException = new;
Transaction.Abort(ex,true);
end if;
Exception
When ex : UserDefinedException do
End Transaction;
Function1(commitFlag In/Out)
SQL Select some_flg from some_tab;
If some_flag = 'A'
ex : UserDefinedException = new;
commitFlag = false;
raise ex;
end if;
update some_tab with some_flg;
Exception
when ex:UserDefinedException do
Function2(commitFlag In/Out)
SQL Select some_flg from another_tab;
If some_flag = 'A'
ex : UserDefinedException = new;
commitFlag = false;
raise ex;
end if;
update another_tab with some_flg;
Exception
when ex : UserDefinedException do

Removing the entity object commit from transaction handler

Hi,
The business reuirement of the OAFWK page developed by us is as explained below:
The basic functionality is of updating the attributes of items attached to the change order.
The UI components displayed in the page(Item attribute changes region) are built based on the properties of the item attributes as LOV,poplist,textbox etc..
The dynamic VO mapped to these UI components is based on a standard entity object.
User operation:Select any attribute group and click on Go button.The Item attributes of the attribute group are displayed.Enter values in the Item Attributes and click on Apply button of the region.(changes made in the attributes related to the attribute group are committed to the database using
<Root AM>.getTransaction.commit()).
Now we have two such regions in the same page.
On top of the page the item attributes of _{color:#800000}<Item Type X>{color}_ are displayed.
Down the page, the item attributes of {color:#0000ff}<_Item Type Y_>{color} are displayed.
In few special cases i.e for few item attributes, on click of Apply button for {color:#0000ff}_Item Y_{color} , the attributes of {color:#800000}I_tem X_{color} are to be updated by calling a PLSQL API.When Apply button in the Item attributes of _{color:#0000ff}Item Type Y{color}_ is clicked,the execution of controllers is :
1.Controllers of Item attribute changes region of {color:#800000}<Item Type X> {color}The dynamic VO is built for the item attributes of Item Type X
2.Controllers of the Item attribute changes region of {color:#0000ff}Item Type Y{color} The dynamic VO is built for the item attributes of Item Type Y.In the last controller of the hierarchy, the PLSQL API call is included(by invoking the method in AM) to update few attribute values of {color:#800000}Item Type X and finally <Root AM>.getTransaction().commit().
Problem : The updated values by PLSQL API for {color:#800000}_Item Type X_{color} are not reflected in the database but indeed the values entered by user for {color:#800000}_Item Type X_{color} in the top of the page are committed(The Apply button for {color:#800000}_Item Type X_{color} is not clicked).
_>>Please note that the dynamic VOs of both the Item Types are built on the same standard Entity Object_
I am struggling to know the reason why the values updated by PLSQL API are overwrittem by the values in the entity object even though the PLSQL API is called in the last controller of execution.Please let me know if there is any OAFWK constraint.
I tried the approach of removing the commit of the dynamic VO built in the region of {color:#800000}_Item Type X>_ {color}{color:#000000}I fetched the entity implementation of the dynamic VO row and used removeandRetain(),revert().But this approach failed.I am referring to the jdevdoc for the built-in methods.
{color}
Now the requirement is the latest values updated by API (for {color:#800000}_Item Type X_{color}) should be committed in the database but not the values updated by the entity object for {color:#800000}_Item Type X_ {color}{color:#000000}in the item attributes region{color}.
There should a single commit for the entire transaction of the page.
Is there any chance to remove the commit of item attributes of {color:#800000}_Item X_{color} alone from the transaction handler?There are few methods in oracle.jbo.server.EntityImpl class such as doRemoveFromTransactionManager().But these methods are either protected or private.So classes of other packages cannot access them.
So pelase suggest me if there is a workaround for this scenario.
Thanks and Regards,
Kiran
Edited by: Kiran.A on Sep 20, 2008 3:34 AM

Hi Sumit,
Yes I agree on that front that updating the same record through PLSQL and EO is not the right approach.
But the business requirement is as such and we do not have any workaround for this.
Please let me know if there is any way to avoid the EO commit by removing from transaction listener.
Regards,
Kiran

TS1702 Got problem about transaction Purchase Gold in games

I can't buys more gold from infinityblade2 it always said please contact iTunes about transaction but I always check my account no any problem I still have a lot money In my credit card

These are user-to-user forums, you can contact iTunes support here and ask them what the issue is : http://www.apple.com/support/itunes/contact/ - click on Contact iTunes Store Support on the right-hand side of the page

I want to know more about transaction(Container-managed).

i want to know more about transaction,how to use Container-managed
          transaction?
          can someone give me an example?
          fish


That is not part of Firefox. It is either an add-on for Firefox which you installed, or it is a separate program you have.
Also, is '''Sanapshot tool''' the correct name? Or did you mean '''''Snapshot'''''?

Transaction Handling in webservice based partnerlink

What is the transaction handling mechanism for parnerlink which calls webservice (not native BPEL/ESB)?
REgards
priyadarshi

It is SDO using I think
It should be not SOAP action, because it is not support transactions

Transaction handling in Siebel

Hi
Can I implement transaction handling in Siebel? If yes, how can I implement it?
Thanks
Gana

This pdf give some background on transactions and error handling within esb 10g.
http://www.oracle.com/technology/products/integration/esb/files/esb-transactions-errorhandling.pdf
not very detailed

Transaction Handling across Procedures

In the ODI Best Practice Guide for Data Warehouses I came across the following (page 100):
"ODI procedures include an advanced mechanism for transaction handling across multiple steps or even multiple procedures."
It states that transaction handling can occur across multiple procedures. I could not get this to work.
I created a procedure with just one step that inserts into a table. In the step I have set the Transaction dropdown to Transaction 0 and the Commit dropdown to No Commit. However, when I execute the procedure the insert is committed as we terminate the session.
Any ideas how this commit can be prevented?

ok, I figured out that parameters to the JDBC driver can be specified at the properties tab of the data server.
So I presume this will be autocommit = false or sth. similar
I still have to try this out.

Osb 11g transaction handling

Hi,
I have a problem with transaction handling in OSB 11g. When I add a report action, error messages disappear.
The process is the following:
jms-queue -> proxy-service ->business-service ->EBS webservice.
In the proxy-service I add an error-handler at node-level. In this error-handler I log the error-message in the server log. In the regular process there is a request and response-pipeline.
When I add a message on the queue and when the response from EBS is negative, the message is placed on a errorqueue. That's ok.
When I add a report-action to the error-handler and then I put another message on the queue, the message is disappeared. It is not on the error-queue and not on the normal queue. When I look in the database there is an extra row added.
I use the default datasource(wlsbjmsrpDataSource).
I found for example this blog: http://biemond.blogspot.nl/2010/11/global-transactions-and-quality-of.html ; but I can't find an example with writing to a database and a rollback to an errorqueue. The report-action needs it's own transaction.
In the weblogic console -> datasources -> transaction I unchecked "Keep Connection After Local Transaction" but that didn't work.
What kind of options is possible?
Herman

I cant believe i was answered by the famous Anuj!.
You were correct. The weird thing, is that in publish actions the QoS is not propagated onto the target of that Publish per se.
We say this, becouse the Local PS has the Transaction Required = True, ergo the QoS is Exactly Once all along its message flow. It also propagates in the service callout´s and Route Node´s. Thats why we, trying to avoid redundance, didnt specified it in the publish action.
Thank you very much.
Regards.
Mario.

Please brief Describes about error handling with example

dear
please describe about error handling and exception handling

Darryl Burke wrote:
This is the third thread you have started here, without bothering to reply to responses on the two earlier threads. Not the best way to continue to get help on a forum, that.Not to mention the fact that it's a horribly broad and vague question that is better answered by a combination of books, tutorials, and google searches.

Transaction handling in EJBs

i dont know ejb�s handle transaction.
any sugesstions??????
sorry my english, ciao

http://www.google.com/search?hl=en&q=EJB+transaction+handling
Especially look at this one:
http://www.kevinboone.com/ejb-transactions.html

About transaction logs

Can you tell me about transaction log space? how does it gets full? How is it related to performance?

Hi,
Monitoring the SAP Log Disk
Use
The size of the transaction log must be checked regularly to work out how much free space is available on the log disk. There should always be enough free space to allow the next file extension. When the SAP system has been installed the autogrow increment is set. At least the size of this increment should be available on the log disk to permit the next file extension. If less space is available and the transaction log file fills up, the SAP system will come to a standstill.
Ideally, the transaction log should never be filled to more than 60-70%. If the transaction log regularly exceeds this level between 2 transaction log backups, the transaction log must be saved at more frequent time intervals.
The size of the log can be assessed on the basis of information given for completed backups in the SAP transaction for Backup and Restore Information.
Procedure:
       1.      To access the transaction for Backup Restore Information choose CCMS ® DB Administration ® Backup logs.
Alternatively, enter the transaction code DB12.
The initial screen of the monitor CCMS Monitoring Tool u2013 DB12 (Backup Restore Information) appears.
       2.      Choose Backup history and then Logs Backup.
       3.      A result list appears. Find the largest transaction log backup of the past week. Select a row and then History info to find out the number of pages that were processed during the backup. To work out the amount of space used in the transaction log, multiply the number of dumped pages by 8 KB. You can then work out how much free space is left on the transaction log disk.
If you use a RAID1 disk system exclusively for the SAP transaction log and create hourly log backups, you will rarely encounter space problems. The SAP log file is initially created with a size of 1 GB. The smallest disk normally has 9 GB space and the log file can therefore grow to 9 GB.
Hope it Helps
Srini

About transaction handling

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