OCL constraints intended prevent node creation in an GMF generated editor only makes it invisible

Posted by TheMorph on Stack Overflow See other posts from Stack Overflow or by TheMorph
Published on 2010-05-23T15:26:57Z Indexed on 2010/05/23 15:41 UTC
Read the original article Hit count: 297

Filed under:

model

|

gmf

|

ocl

Hello,

I am working on editors created with GMF and struggling with OCL right now.

Is there a possibilty to prevent a node to be created if an OCL statement in the mapping evaluates to false? If tried adding an OCL statement to a node and all it does is making the node not visible in the editor, but it is created.

There is also an OCL statement in the ecore file, but this way it is only evaluated when there should be something done with the created model. I does not prevent a user to construct an invalid model but this is what I intend to prevent.

Thanks in advance,
Morph

© Stack Overflow or respective owner

Related posts about model

Why model => model.Reason_ID turns to model =>Convert(model.Reason_ID)

as seen on Stack Overflow - Search for 'Stack Overflow'
I have my own html helper extension, wich I use this way <%=Html.LocalizableLabelFor(model => model.Reason_ID, Register.PurchaseReason) %> which declared like this. public static MvcHtmlString LocalizableLabelFor<T>(this HtmlHelper<T> helper, Expression<Func<T, object>>… >>> More
Rails model belongs to model that belongs to model but i want to use another name

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello. This may be a stupid question but im just starting to learn Rail thats why i am asking thsi question. I have one model called "User" which handles all the users in my community. Now i want to add a guestbook to every user. So i created a model called "user_guestbook" and inserted this into… >>> More
AngularJS on top of ASP.NET: Moving the MVC framework out to the browser

as seen on Simple Talk - Search for 'Simple Talk'
Heavily drawing inspiration from Ruby on Rails, MVC4’s convention over configuration model of development soon became the Holy Grail of .NET web development. The MVC model brought with it the goodness of proper separation of concerns between business logic, data, and the presentation logic. However… >>> More
strange data annotations issue in MVC 2

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I came across something strange when creating an edit form with MVC 2. i realised that my error messages come up on form sumission even when i have filled ut valid data! i am using a buddy class which i have configured correctly ( i know that cos i can see my custom errors). Here is the code… >>> More
How to disabled the input,textarea,select using this code..

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello friends I am using this code in my view.. <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<NorthernTrust.ATP.iTool.Core.Business.Entities.Exceptions.PricingMassEditBE>" %> <script type="text/javascript"> $("#PricingEditExceptions").find("input, select… >>> More

Related posts about gmf

How to use OCL constraints to prevent node creation in an GMF generated editor

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I am working on editors created with GMF and struggling with OCL right now. Is there a possibilty to prevent a node to be created if an OCL statement in the mapping evaluates to false? If tried adding an OCL statement to a node and all it does is making the node not visible in the editor… >>> More
OCL constraints intended prevent node creation in an GMF generated editor only makes it invisible

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I am working on editors created with GMF and struggling with OCL right now. Is there a possibilty to prevent a node to be created if an OCL statement in the mapping evaluates to false? If tried adding an OCL statement to a node and all it does is making the node not visible in the editor… >>> More
Exception seem in an eclipse GMF application when file not present in workspace

as seen on Stack Overflow - Search for 'Stack Overflow'
I am developing a GMF application . In this situation , I start my workspace and load a file in the workspace . Then I close the workspace and then delete the file from the workspace . After that, I try to restart my application and restore the workspace . Of course , now since the file does not… >>> More
GMF - programmatically create connections without commands

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi I am developing an graphical editor with GMF and want to create a set of nodes (Resources in my project) and connections between them upon intialization of a new diagram. I do not want to use commands here because without the code is much slimmer, easier to read and also faster it seems to me. There… >>> More
Recursion in Ecore-File?!

as seen on Stack Overflow - Search for 'Stack Overflow'
Hey guys, just tried to convert towards a Ecore-Model from a given UML-Model. After this I am trying to create a Generator Model. Everytime I try to do this I get the Error Message, that there is a "Unhandled event loop exception" with this log: org.eclipse.swt.SWTException: Failed to execute… >>> More