Optimizing Spring ROO

[jjcremades]

Hi,

I'm just begun with this IDE and the problem is my memori space. I'm using the 2.7.2 release and I have 2GB memory.

Can you give me some suggestions for to get that Spring ROO do not use extra memory space? I'm my last execution, it arrived more than 1 GB!!

Thank you so much

[greg.soulsby]

I am no expert, but since no one else has answered, it might be helpful to know that I had memory trouble with a 4 gig machine. As far as I can tell this not Roo specifically but Eclipse. I went to 8 gig and then still had to search forums for memory settings that worked. I also broke my one large project into smaller ones, just to keep the build times reasonable.

[MiB]

Have you verified that your JPA settings don't load ALL fetchable objects that your query can bring back via its relationships? If this is a complex model, then you don't want to keep everything in memory bur rather lookup objects when you need them. There's a good primer in the "Spring Roo in Action" book by Ken Rimple & Srini Penchikala about this.

IMHO, one cannot develop bigger real world Roobuilt Spring applications without understanding JPA.

[KingAndrew]

IMHO, one cannot develop bigger real world Roobuilt Spring applications without understanding JPA.

I agree very much with this statement. I did some JPA reading in "Spring Roo in Action" and I understand much more that I did when I had looked at roo years ago and passed.