Answer 1

Nothing comes by default in Java/J2EE. However, it does NOT take much to implement. Your order processor and other processors can have listeners /observers on the processORder method. These can process the email/other notifications.

You can even have a jms message coming out of the OrderProcessor with some info about the particular notification and you send an email/otherAlert to the user after consuming the JMS message.

Answered by: Audrey957 | Posted: 22-02-2022

Answer 2

We can use JMS for sending notifications to users. JMS producers puts the alerts in queue and producers will process the message and send to notifications to user via. email / sms and/or store in database to show the messages in user dashboards.

Answered by: Miller318 | Posted: 22-02-2022

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