Synchronous BPM start

[Former Member]

Hello,

I would like to create a BPM, started by a synchronous

Web service call. The BPM should call a JDBC Adapter

(also synchronous) and return the information to the

web service.

Everything is synchronous in this example, but I could

only create container which point to a asynchronous

interface. Why? How can I do this process?

In https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403"; [original link is broken] [original link is broken] [original link is broken]>this [original link is broken] [original link is broken] webblog he also starts with a synchronous, but set it to s/a-bridge. Why??!

thx

chris

[Former Member · Accepted solution]

Hi Christian,

As Michal Suggested you dont need a BPM, for what you are actually trying. Just incase you wanna go ahead with BPM, you need to use a Sync - Async Bridge.

If you wanna know more about Sync - Async Bridge, go through my reply in the below forum thread.

Regards,

Abhy

[Former Member]

Hi,

A container can basically contain only one type of message.

A message that a container can store, is represented by a interface. And since it can hold only one kind of message, the interface has to be asynchronous.

However, we would have to specify abstract sync interfaces, when we are carrying out a sync send i the bpm.

Regards,

Smitha.

[Former Member]

A BPM is necessary, because we have to create

an error handling. so I need to create a BPM

and test if a connection could be establish

or if a message is filled. Or is there another

kind to handle errors than with a BPM?

@Smitha Rao

That is an interessting fact. A sync Interface has

a request an a response message, and so the container

had to handle two types of messages. And that he couldn't

do, right?

thanks

chris

[bhavesh_kantilal]

Chris,

If you are conviced that you need a Webservice -- JDBC with a BPM, then you will need a Synch- Asynch Bridge.

Reason :

BPM receives a Synch Request Message from webservice. Then, using a Send Synchronous Step, you are making a Synchronous Call to the JDBC. The response you will need to send back to the Webservice and to do this, you will again have another Send Step .

Now, how will you ensure that the Response is sent back to the same synchronous call? Using a Synch - Asynch Bridge, you will link the Receive Step of the BPM and the final Send Step of the BPM.

Regards,

Bhavesh

[Former Member]

Yes.you got it right.

Regards,

Smitha.

[moorthy]

Hi,

What type of error handling you are going to do ? Is it just kind of alerts , then you can think of without BPM. Else, you can use BPM.

Now, if you are using BPM for 2 Synch communication, then you need to open Sync/Async Bridge.

So you will recieve Sync message in BPM and then you cen send Sync Req to Reciever. So this reciever give the response back to BPM , this Response is mapped directly to Response of the Sender and then it has been sent to sender by closing Sync/Async Bridge.

to know more on this-Sync-Async-

http://help.sap.com/saphelp_nw2004s/helpdata/en/83/d2a84028c9e469e10000000a1550b0/content.htm

Regards,

Moorthy

[Former Member]

Thanks all for help.

Is a JDBC call synchronous or asynchronous? Means,

which step do I have to use in BPM for this?

@Moorthy

The link you send me uses a synchronous sending step

at the end of the BPM. Why do I have to use a

synchronous step here? I don't want to receive

a response in the BPM. Other examples (like the blog

I linked above) uses a asynchronous sending step

at the end.

@all

Is is only possible to select interfaces within a BPM

from the same namespace? I couldn't select interfaces

from outher namespace.

regards

chris

Message was edited by: Christian Riekenberg

[bhavesh_kantilal]

Hi,

A JDBC call using Receiver JDBC adapter can be synch or Asynch.

If you need to select data from a DB, then the call is a Synch call. Take a look at my blog for this,

/people/bhavesh.kantilal/blog/2006/07/03/jdbc-receiver-adapter--synchronous-select-150-step-by-step

Regards,

bhavesh

[Former Member]

Hi ,

<i>Is a JDBC call synchronous or asynchronous</i>

It can be synch or asynch depends on the requirement.

If you want to select the data from the Data base then you have to make a synchronous call..

<i>I couldn't select interfaces

from outher namespace.</i>

Yes...you can select only interfaces which belongs to the same namespace of BPM. You can select the interface which is having message type of different namespace also.

sekhar

[MichalKrawczyk]

hi,

why do you need a BPM in this case?

it's a standard sync - sync communication

where not BPM is necessary

Regards,

michal