Eclipse Community Forums: Graphiti » Difference between Diagram Type and Diagram Type Provider

Help

Home

Home » Modeling » Graphiti » Difference between Diagram Type and Diagram Type Provider

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

Difference between Diagram Type and Diagram Type Provider [message #731542]

Sat, 01 October 2011 16:30

vinaybedre

Messages: 8
Registered: September 2011

Junior Member

Hi,

Can anyone tell me the difference between Diagram Type and Diagram Type Provider in Graphiti.

--
Regards,
Vinay Bedre

Report message to a moderator

Re: Difference between Diagram Type and Diagram Type Provider [message #731561 is a reply to message #731542]

Sat, 01 October 2011 18:22

Hernan Gonzalez

Messages: 188
Registered: October 2010
Location: Buenos Aires, Argentina

Senior Member

When you code a Graphiti application, you tipically define your own DiagramType (basically, a string identifier) and its DiagramTypeProvider (basically a Java class. that is associated to a DiagramType; the declaration is done in your plugin.xml. This is explained in the first pages of the tutorial ("Features" and "Diagram").

In the typical workflow, When a diagram is saved, its DiagramType is saved inside it. And when the Graphiti editor loads it (assuming we are using the default DiagramEditor), it discovers the type, and find a declared DiagramTypeProvider that understand that type, and instantiates its Java class. This object will provide the editor with all the behaviour and features to show/manipulate the diagram.

[Updated on: Sat, 01 October 2011 18:23]

Report message to a moderator

Previous Topic:	Grahical editor refresh on underlying resource changed
Next Topic:	Connection without semantic object

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Wed Jul 15 06:22:20 GMT 2020

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter