topic How to replace the DefaultHistoryManager in Alfresco Archive

How to replace the DefaultHistoryManager

tlyle — Mon, 12 Dec 2016 10:25:55 GMT

Hello all,I'm looking for some information on how to replace the DefaultHistoryManager with my own implementation.I found this thread https://community.alfresco.com/message/797997-re-disable-history-for-specific-process?commentID=797997#comment-797997 so I know which interface I have to implement bu

Re: How to replace the DefaultHistoryManager

vasile_dirla — Mon, 12 Dec 2016 12:34:43 GMT

Hi Tom,

For registering a new HistoryManager then you have to create the HistoryManager,

class MyHistoryManager extends AbstractManager implements HistoryManager{
...
}

the SessionFactory ,

public class MyHistoryManagerSessionFactory implements SessionFactory {
   
   public java.lang.Class<?> getSessionType() {
      return HistoryManager.class; 
   }
   
   @Override
   public Session openSession() {
      return new MyHistoryManager();
   }

}

and then just inject the sessionFactory into the engine using configurations like that:

Re: How to replace the DefaultHistoryManager

gdharley — Mon, 12 Dec 2016 13:43:23 GMT

Hi Tom,

Vasili's answer is absolutely correct, but implementing a complete history manager may be overkill for what you need.

Somewhere around 5.16, the "event" subsystem was introduced (documented here: Activiti User Guide ).

This allows you to register for any event and act accordingly.

We use this mechanism to integrate into such things as NoSQL storage for reporting (e.g. Elasticsearch) as it acts in addition to the existing history tables and will not impact the operation of the history and management REST (and Java) API.

But, if you are looking for a full replacement, then Vasili's directions are correct.

Regards,

Greg

‌

Re: How to replace the DefaultHistoryManager

tlyle — Wed, 14 Dec 2016 14:13:46 GMT

Thanks for the replies. They've both been very useful