so i am working on modeling a system using SYSML 1.6 standard and papyrus as a modeling tools
after listing all requirements (and all the nested requirements for complex ones) i discovered that Requirements tree table could not show more than 3 levels of nested requirements which keep a lot not shown on the table
further googling, i found that this table is based on nattable, a " high performance SWT data grid" that papyrus use with some specific configuration to generate the requirements tree view
so my question : is there any way to override the default configuration so the tree view table will show all nested requirements instead of the first 3 levels
Related
I see that Magic Draw supports both graphical and tabular notations. However, I would like to know if they can be synchronized to one another or they only function separately. So, if I create a class diagram with the graphical editor, can I generate a table from it in MagicDraw? And whenever I make the changes to one editor, the changes to be reflected in the other editor?
Thank you!
The answer is complex.
First, diagrams are views of the model. Tables, as just another kind of diagrams, are therefore views of the model. In other words, changing an element in a table will change the element in any diagram it is displayed.
Now it gets complex - but how you use the tool can simplify the. You seemed to ask, can a table be synchronized with a table and a table with a diagram? A table can be based on a scope, a query, or by composition (drag an element onto the table or create on the table). Scope or query is is a lot better because they can be used to match the diagram or package where the diagram puts its data (by default, the package where the diagram is stored).
However, diagrams are intended to be expressions of the human for us humans. Thus the diagram does not automatically add elements if they were added in a table.
How do we square the circle? How do we add (or even detect) an element created on a diagram? There is a way to get a list of diagrams (https://community.nomagic.com/usage-in-diagram-displayed-in-generic-table-t5789.html ). Using a similar technique a rule could be created to warn about elements that are not on any diagram. It is still up to you to add the element to the diagram with this information at hand (or write a fancy plugin).
I was able to define a custom programming language in Enterprise Architect with custom data types by navigating to Project > Settings > Code Engineering Datatypes.... When I create a MDG file, I have the option to include the programming language definition, and as far as I can tell, this is working - at least, in a new project that uses the MDG file, I can see the programming language.
Now I would like to have the same behavior for DBMS and database datatypes defined through Project > Settings > Database Datatypes.... From my tests, I get the impression that these types are not automatically included in the MDG file, and I haven't found a trivial way to include them. Is there a way to add the database datatypes to the MDG file as well? If not, is there a way to achieve the same result through the automation interface, e. g. by writing an add-in that creates the DBMS and the associated datatypes?
Going the MDG Technology way, the answer appears to be no. It's possible to trick EA (11) into exporting DB types in an MDG Technology, but even if they're in there, they will be ignored in projects that use the MDG Technology.
DB types and code engineering (or, sometimes, "programming language") datatypes are both stored in EA's t_datatypes table. The same product name can be used for both a programming language and a DB engine.
It looks like the MDG Technology Wizard scans this table looking for rows with "Code" in the Type column during the setup (Code Modules wizard page), but when the time comes to write the actual datatypes into the output file, it retrieves all rows with the specified ProductName.
This means that if you create a DB product and populate it with a set of datatypes, and then create a programming language product with the same name but just a single dummy datatype, your DB types will be included in the MDG Technology XML file along with the dummy type.
However, it appears that while the regular properties dialog (for classes etc) checks the loaded MDG Technologies in addition to the t_datatypes table in order to populate the Language drop-down list, the specialized properties dialog for database tables does not check the MDG Technologies when populating the corresponding Database drop-down. So even though the datatypes are in the file, you can't use them.
Going the Add-In route, the answer is yes.
Have your Add-In respond to the EA_FileOpen event and check the Repository.Datatypes collection to see if your DB types are installed and if not, add them.
You don't actually need to write an Add-In if you don't want, you can write an in-EA script. The only thing an Add-In can do that scripts can't is respond to events (which is why those are listed in the Add-In Model section of the help file). So with a script you would have to trigger the function manually.
There is also an API to manage project's reference data of which code / DB datatypes is one category, but it only gives you control of some of the categories (eg requirement types and constraint types), and the datatype category is not one of them.
i am building an editor for manipulating graphical elements, each element must represent a type of element in an API Specification.
The elements of the API are basicaly some classes ad interfaces, they have certain usage constraints, like the element A can't be a child of the element B, or can't be connected with the element C, etc...
The editor should allow you to generate code accordinatly to what you have drawn and the generated code must be an implementation of the API that correspond to what you have drawn.
i know nothing (in practice) about model driven architecture and how i can generate code from a graphical model to some implmentation.
i don't want to mix the graphical model(containing graphical informations like the size and the coordinates, etc...) with the business model implementing the API Specification.
I am using eclipse GEF for building the editor
here're the problems i am facing:
Since the graphical model and the business model are separated, i was thinking of defining an emf model, the the editor would be an editor for that emf model. Is it possible then to transform the model drawn in the editor, using the emf model as basic construct elements, to a corresponding implementation of the API specification ?
i know since the graphical model and the business model are separated i have to implement some sort of a grammer sepcifiyng the usage constraints is antlr well suited for what i want to do (speaking about code generation and the grammer) or should i go with xtext ?
what eclipse framework tool whould help me to do what i want to do ?
If you already have a graphical editor, then it seems mostly unnecessary to create a lower-level textual model format (e.g. using antlr/Xtext) to execute code generation. Especially, if your model is already in EMF.
There are various code generator technologies for EMF model (e.g. Acceleo or Xtend can also be used for that); these generator will use the EMF model as an input, and provide the output code specific to the API you seem to be using. In both tools you have to manually assemble your output files by defining templates, and then serialize the results of these templates. This serialization is automatic in Acceleo, or you can do it using a Java-like API in Xtend.
If your model is not in EMF now, you can still use Xtend directly - however, I believe, Acceleo will not useful in this case.
In a project I work on there is a C# library containing business objects which are related to the backing database tables/stored procedures.
We imported the code into EA model (where we already have database model) and now I'd like to show dependency between a class and a table (or stored procedure output).
Since these are loosely coupled (i.e. only a portion of properties are shared between them) I'd like to have a relation between a class A and table B and in the properties of this relation to have the mapping (A.a <-> B.a , ...).
Is this possible and how?
You can draw connectors between two elements and then link one or both ends to an element feature (an attribute or an operation). Draw the connector, then right-click near the end and select Link to Element Feature.
You can draw any number of connectors between two elements, and link any number of them to any features at either or both ends.
You should note that this is an EA feature which is not in the UML standard. As such, it is also a little trickier to automate (the feature link is not documented in the API), but I've done it before for a client so it can be done. However, from your question I assume it's the manual case you're interested in.
I am using EF 4.0, linq to entities, VS 2010 and SQL Server 2005 Stored Procedures to do a small search application. I have designed the EDM and the required layers. The presentation layer displays the search results properly.
The dilemma now is that the search should be flexible enough to read from different tables. For example, for the present search the application is reading from table A. Tomorrow the application may need to read from table B which may have totally different column names than table A.
Using EDM how can i map table A columns to Table B columns , without having any effect on the presentation layer.
Any suggestions/pointers/links would be greatly appreciated.
Thank you so much for your time and help.
I have used the Data Repository explained in the below link it shows the IDataRepositoryand the DataRepository class. also how you can fetch data dynamically using the fetch() and Find() functions
http://huyrua.wordpress.com/2010/07/13/entity-framework-4-poco-repository-and-specification-pattern/
and its working pretty fine
I would recommend decoupling your presentation layer from your data. Create a business layer with a generic class that can be populated from different tables (entities) depending on your needs.
So, depending on the day, the generic class (or classes) would be populated from Table A, or Table B, or table X. However your presentation layer would be oblivious to this and only aware the data from the generic class.
You could design this a number of ways. One way would be to design an interface that the entities must conform to in order to populate the generic class. So no matter what the table structure is, you would need to map the data in it to the interface in order to populate the generic class and hence display it as search results.