InteraceNotSupportedException when getting the native object in portal

Question

Hi,
When i am trying to get the native object i get the following error
com.sapportals.connector.connection.InterfaceNotSupportedException: Interface com.sap.mdm.net.ConnectionAccessor is not supported
Please help me.
Thanks,
Padmaja

Answer 1

Hi Sree,
Ruben has told you an option using a Notification Wait with interruption, but.... that option has some drawbacks.
1- Interrupting a previously interrupted instance may not achieve the desire effect.
2- The engine does not guarantee that the notifications are received in the same order than they were sent. (it usually does, but...)
3- A notification will not be successful if the instance is locked (by an user running a screenflow). The notification will be retried, etc... (this will degrade your engine performance)
There are more.
Let me tell you a completely different approach.
Why don't you store your object in a separate storage (like a database). You can store it (in xml) and read it. (BPM provides the ability to serialize and deserialize an business object to/from an xml).
So, you will need an identifier that will be stored in an instance variable. (and the subprocess should have the same id)
So, when you need the information, you search it in the database (by using the ID)
Advantages:
1- The information is shared between the main process and the subprocess
2- The instance Blob size will be reduced
3- You only read the object when it is necessary
Disadvantages:
1- you have to code a bit more
2- If you need the object in almost all the activities, an extra select+update will be required.
(if you use the PK, those queries should run very fast)
As I told you before, this is a completely different approach.
Hope this helps,
Ariel