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Status Functionality already exists
Created by Guest
Created on Aug 3, 2018

Setting Unit of Order on Message producer

We had created a Case # TS001140603 and asked to create a REF for the below feature.

We are migrating j2ee weblogic application to websphere 8.5.5 ND and need to specify Unit of order. Consider below e-commerce scenario. A client makes an online purchase with Amazon and immediately cancels it. If amazon receives the Cancel message first before the Purchase message, cancel gets invalidated and proceeds with completing the purchase. We have similar business logic which is heavily dependent on jms messages we receive, the order in which they are processed is also very important.

In Weblogic, when message is submitted, we also pass to WebLogic specific text that contains our business specific details. Based on this text, WebLogic sends this message to specific/single instance of WL queue (which WL completely controls internally) so that all the messages for specific message are consumed by the same MDB instance (and therefore sequentially). We use this to avoid multiple concurrency related exceptions. The code snippet how we set it below:

((weblogic.jms.extensions.WLMessageProducer) producer).setUnitOfOrder(STRING);

Idea priority Urgent
RFE ID 123235
RFE Product WebSphere Application Server
  • Admin
    Alasdair Nottingham
    Oct 29, 2021

    WebSphere Application Server messaging supports this behaviour by configuring Strict Message Order on the SIBus Queue. Documentation is available in the docs for WebSphere.