global variables in message mappings - question:)

[MichalKrawczyk]

Hi,

I have a question about global variables in message mappings

can anyone confirm that they are global

for just <b>one</b> mapping instance? (I hope so)

or global for the whole one mapping?

I just need a confirmation as it's

not that easy to test the case

Regards,

michal

[bhavesh_kantilal · Accepted solution]

Michal,

They are for one mapping instance only.

We had a requirement once when we wanted them to be initialized only once( global for whole mapping ), but we realised that global variables could not be used in such cases.

Regards,

Bhavesh

[S0003485845]

Hi,

If you have any of the Seeburger-Adapters in place, they provide this functionality with some Java-Classes and a database table (since this is a wide requirement in EDI, where you need to store specific transmission-counters for your different partners).

So you could copy the Java-Functions to your mappings.

Without these Adapters, I don´t know what the best way would be.

Greetings

Stefan

[Former Member]

we keep an external db and update the table in a thread safe way !

[STALANKI]

Alternative way is to have a jar imported and have a java class final static variable:) and use it from UDF.:)

[stefan_grube]

Be careful. The mapping EJB is stateless. So you cannot be sure that two mappings are performed with the same bean. So you cannot tell, if a static variable is initial or has the value of any other mapping before.

It is better to avoid static variables in mapping.

Regards

Stefan

[MichalKrawczyk]

Hi Sravya,

but it's not the alternative:)

I need something which will be

instantiated just for one mapping

Regards,

michal