Model and Event

[Kanat Mergenbayev]

Hi.

Can I combine Model and Event?

On change fire event and put custom business logic into model. 

I found that using model generator I can generate X_C_Bank with all new methods/fields I added in "Bank / Cash" window. 

Now on 
registerTableEvent(IEventTopics.PO_AFTER_NEW, MBank.Table_Name);

registerTableEvent(IEventTopics.PO_AFTER_CHANGE, MBank.Table_Name);
registerTableEvent(IEventTopics.PO_AFTER_DELETE, MBank.Table_Name);

I want to work with my custom "fields/methods" get/set them.

Is there an example how I can combine event and model?

[Heng Sin Low]

If you are using code from master branch, you can follow the example at https://wiki.idempiere.org/en/NF9.1_OSGi_New_Event_Handling_Annotation

 

On earlier version (8.2 and below), use the getPO(event) method and cast it to the model class that should be working with, for e.g MBank bank = (MBank)getPO(event);

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[Saulo Gil]

Hello Kanat,

When working with model classes that already exist in the core, it is best to leave the iDempiere core without modifications and handle everything from a plugin. If all you need is to add get/setters to core model classes, you could take only the generated interface files, then use them within your plugin via POWrapper.

Best regards,

Saulo Gil | Orbital Software  | +54 911 3049 4237

[Kanat Mergenbayev]

Can you please share an example of using Powrapper with me.

To view this discussion on the web visit https://groups.google.com/d/msgid/idempiere/0100017d9a0c653d-d4555d66-8f67-4ca4-8e2f-730d5c742de2-000000%40email.amazonses.com.

[Saulo Gil]

Sure, it'd go like this:

MBank bank = (MBank) getPO(event); // taking Heng Sin's example

your.package.I_C_Bank customBank = POWrapper.create(bank, your.package.I_C_Bank.class);

customBank.setFoo(bar); // invoke your own setter/getter

bank.save();

On 8/12/21 14:34, Kanat Mergenbayev wrote:

Can you please share an example of using Powrapper with me.

On Wed, 8 Dec 2021 at 18:37 Saulo Gil <saul...@orbital.com.ar> wrote:

Hello Kanat,

When working with model classes that already exist in the core, it is best to leave the iDempiere core without modifications and handle everything from a plugin. If all you need is to add get/setters to core model classes, you could take only the generated interface files, then use them within your plugin via POWrapper.

Best regards,

On 8/12/21 02:00, Kanat Mergenbayev wrote:

Hi.

Can I combine Model and Event?

On change fire event and put custom business logic into model. 

I found that using model generator I can generate X_C_Bank with all new methods/fields I added in "Bank / Cash" window. 

Now on 
registerTableEvent(IEventTopics.PO_AFTER_NEW, MBank.Table_Name);

registerTableEvent(IEventTopics.PO_AFTER_CHANGE, MBank.Table_Name);
registerTableEvent(IEventTopics.PO_AFTER_DELETE, MBank.Table_Name);

I want to work with my custom "fields/methods" get/set them.

Is there an example how I can combine event and model?

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[Kanat Mergenbayev]

Thank you. works, but with some exceptions...

public class BankEventHandler extends AbstractEventHandler {

        CLogger log = CLogger.getCLogger(BankEventHandler.class);
       
        @Override
        protected void doHandleEvent(Event event) {
                // TODO Auto-generated method stub
                PO po = getPO(event);

                if (po instanceof MBank) {
                       
                        Properties context = Env.getCtx();
                       
                        MBank bank = (MBank) po;
                       
                        Integer tableId = bank.get_Table_ID();
                       
                        Integer recordId = bank.get_ID();

                        kz.greenCrossEco.bank.events.I_C_Bank customBank = POWrapper.create(bank, kz.greenCrossEco.bank.events.I_C_Bank.class);

                        customBank.setC_Bank_P_Rem_Acc_System_Key("parent key");
                       
                        customBank.setC_Bank_B_Rem_Acc_System_key("branch key");

                        bank.save();
               
                }
        }

        @Override
        protected void initialize() {
                // TODO Auto-generated method stub

                registerTableEvent(IEventTopics.PO_AFTER_NEW, MBank.Table_Name);
                registerTableEvent(IEventTopics.PO_AFTER_CHANGE, MBank.Table_Name);
                registerTableEvent(IEventTopics.PO_AFTER_DELETE, MBank.Table_Name);
        }
}

 saves data in database, but getting error in concole

!ENTRY org.eclipse.equinox.event 4 0 2021-12-09 10:30:44.178
!MESSAGE Exception while dispatching event org.osgi.service.event.Event [topic=adempiere/po/afterChange] {event.data=MBank[1000013-My bank 3], event.errorMessages=[java.lang.StackOverflowError], tableName=C_Bank} to handler kz.greenCrossEco.bank.events.BankEventHandler@a58b7d7
!STACK 0
java.lang.StackOverflowError
        at java.base/java.lang.StackStreamFactory$AbstractStackWalker.callStackWalk(Native Method)
        at java.base/java.lang.StackStreamFactory$AbstractStackWalker.beginStackWalk(StackStreamFactory.java:370)
        at java.base/java.lang.StackStreamFactory$AbstractStackWalker.walk(StackStreamFactory.java:243)
        at java.base/java.lang.StackWalker.walk(StackWalker.java:498)
        at java.logging/java.util.logging.LogRecord$CallerFinder.get(LogRecord.java:709)
        at java.logging/java.util.logging.LogRecord.inferCaller(LogRecord.java:683)
        at java.logging/java.util.logging.LogRecord.getSourceMethodName(LogRecord.java:383)
        at org.compiere.util.CLogFormatter.getClassMethod(CLogFormatter.java:220)
        at org.compiere.util.CLogFormatter.format(CLogFormatter.java:125)
        at java.logging/java.util.logging.StreamHandler.publish(StreamHandler.java:199)
        at java.logging/java.util.logging.ConsoleHandler.publish(ConsoleHandler.java:95)
        at java.logging/java.util.logging.Logger.log(Logger.java:979)
        at java.logging/java.util.logging.Logger.doLog(Logger.java:1006)
        at java.logging/java.util.logging.Logger.log(Logger.java:1029)
        at java.logging/java.util.logging.Logger.severe(Logger.java:1776)
        at org.compiere.util.CLogger.saveError(CLogger.java:180)
        at org.compiere.util.CLogger.saveError(CLogger.java:139)
        at org.compiere.model.PO.saveFinish(PO.java:2410)
        at org.compiere.model.PO.saveUpdate(PO.java:2537)
        at org.compiere.model.PO.save(PO.java:2283)
        at kz.greenCrossEco.bank.events.BankEventHandler.doHandleEvent(BankEventHandler.java:46)

четверг, 9 декабря 2021 г. в 00:29:03 UTC+6, saul...@orbital.com.ar:

[Heng Sin Low]

you can not call bank.save in your event handler, that causes infinite loop.

To view this discussion on the web visit https://groups.google.com/d/msgid/idempiere/2cb6795a-5275-407c-b5c1-2f606a8d5536n%40googlegroups.com.

[Saulo Gil]

It looks like you could subscribe to events that ocurr before the record is saved, such as PO_BEFORE_NEW. If that is possible, you wouldn't need to invoke the save method as the record would be already in the process of being saved.

To view this discussion on the web visit https://groups.google.com/d/msgid/idempiere/2cb6795a-5275-407c-b5c1-2f606a8d5536n%40googlegroups.com.