perfsonar development work

[Roman Lapacz <>]

Loukik Kudarimoti wrote:
> Hi Roman,
>
> I was having a look into your class to understand how to communicate 
> with ExistDBStorageManager (my mp sources are broken). I noticed this 
> relationship
>
> public class SQLTypeMAServiceEngine extends RRDTypeMAServiceEngine
>
> I don't understand this inheritance (or the need for it). Can you 
> please explain it to me?
Hi Loukik,

Both classes are very similar and SQL service engine, which was created 
later, can use some stuff of RRD service engine (for example getKey 
method). Of course this could be done other way (creating an object of 
RRD service engine inside SQL service engine and using its method or 
repetition of the code or creating another abstract class; if you have 
similar situation in your services it's up to you what you will choose 
according to your experience) but I chose this solution because it's 
comfortable and don't break any logical/implementation rules.


Roman

> thanks,
> Loukik