Eclipse Community Forums: Graphiti » Deleting pictogram elements is slow

Help

Home

Home » Modeling » Graphiti » Deleting pictogram elements is slow

Show: Today's Messages :: Show Polls :: Message Navigator

Deleting pictogram elements is slow [message #1065640]

Wed, 26 June 2013 20:18

Dwight Naylor

Messages: 23
Registered: June 2012

Junior Member

Hi there,

I've noticed in my implementation of graphiti that deleting nodes from even smallish diagrams is always a very slow process (minimum of 200ms).

Is this standard behavior? Is it a bug that has a fix down the road?

Thanks in advance for the help.

Report message to a moderator

Re: Deleting pictogram elements is slow [message #1065925 is a reply to message #1065640]

Fri, 28 June 2013 10:44

Michael Wenz

Messages: 1931
Registered: July 2009
Location: Walldorf, Germany

Senior Member

Dwight,

hm, the reason for this is hard to tell without a deeper analysis. What I
assume at first glance is that you might have a deeply nested shape
hierarchy with a lot of links set up. In that case the default
implementation of the delete feature may profe inefficient, since it relies
on the EMF reverse reference cleanup to remove links to the deleted
element(s). See DefaultDeleteFeature.deleteBusinessObject; it uses the
recursive variant of EcoreUtil.delete which you might try to change.

Michael

Report message to a moderator

Re: Deleting pictogram elements is slow [message #1065986 is a reply to message #1065925]

Fri, 28 June 2013 16:36

Dwight Naylor

Messages: 23
Registered: June 2012

Junior Member

Hi Michael,

Thanks for the help.

I've looked at all the native methods and traced them as far as I can go (only using the raw ecore remove, things like that), and I've had no improvement.

If this isn't a known bug of some sort I doubt there's much I can do. Thanks for the help though.

Report message to a moderator

Previous Topic:	Send To Front/Back requires a write txn?
Next Topic:	synchronize between diagrams

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Sat Apr 20 02:36:24 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter