topic Re: Duplication in Alfresco Archive

Duplication

c_arunrathnakum — Wed, 03 Apr 2013 06:48:49 GMT

Hi,I m currently facing this problem. Please let me know whether the approach is correct or not.I have 2 lists of tasks:list1 has tasks : {Task[1001],Task[1002],Task[1003],Task[1004]}list2 has tasks : {Task[1005],Task[1006],Task[1001],Task[1002]}I m adding list1 to list2 : list2.addAll(list1)Now lis

Re: Duplication

gokceng1 — Wed, 03 Apr 2013 07:07:53 GMT

I suggest you to test with == whatever you think duplicate. I think both Task[1001] tasks are not same.

Re: Duplication

c_arunrathnakum — Wed, 03 Apr 2013 07:37:39 GMT

Hi,
How come it wont be same? I m picking them from the same table.. When i try to print the hashcode, they are different.. Is this an issue?

Re: Duplication

frederikherema1 — Wed, 03 Apr 2013 08:59:48 GMT

You're picking them from the same table BUT they are fetched from a different activiti-context (each API-call builds up context with internal cache of entities). So the second entity returned is a different object. The equals and hash code aren't overridden, so it makes sense they are not equal.

As an alternative, use a hash map with key=id, value=task and make the put(..) conditional, based on whether or not the map already contains the task-id.

Re: Duplication

c_arunrathnakum — Wed, 03 Apr 2013 10:52:47 GMT

Thank u fred..
Will this be resolved/hash is the only way?

Re: Duplication

frederikherema1 — Wed, 03 Apr 2013 11:45:29 GMT

We're not planning on implementing the equals/hashcode on the entities for now, so this is the only way around this problem…