[ARTEMIS-1611] Artemis transformer interface is not backwards compatible

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 2.5.0
• Component/s: Broker

Environment

 

 

• Assignee: Martyn Taylor
• Reporter: Jeff Mesnil
• Created: 16/Jan/18 16:07
• Updated: 07/Mar/18 13:17
• Resolved: 18/Feb/18 22:44

Description

We have users of Artemis 1.x that uses the transformer interface defined in org.apache.activemq.artemis.core.server.cluster.Transformer.

 

This class was moved in Artemis 2.x in an incompatible way: https://github.com/apache/activemq-artemis/blob/master/artemis-server/src/main/java/org/apache/activemq/artemis/core/server/cluster/Transformer.java that redirects to https://github.com/apache/activemq-artemis/blob/master/artemis-server/src/main/java/org/apache/activemq/artemis/core/server/transformer/Transformer.java

We are updating Artemis 2.x but it breaks the client configuration that was using the old interface.

We have strong requirement for backwards compatibility and we'd like to come up with a solution so that the new interface could be made backwards compatible with the existing one.

Would it be possible sense to reintroduce the old interface in the server.cluster package so that old code would still be able to run with Artemis 2.x?

 

Issue Links

• links to: GitHub Pull Request #1783