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| Re: How to define a Derived/Transient/Votaile Attribute in an EcoreModel (2.6M4) [message #509125 is a reply to message #509103] |
Thu, 21 January 2010 08:08   |
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Hi Ed,
thanks for your quick answer. :)
It's a pity, thats these simple thing its not possible to define in
Ecore and all things like notification will also be generated. :/
So I will write all the bodies.
Argh thats over 120 ^^
Greetings
Heiko
Am 21.01.2010 12:49, schrieb Ed Merks:
> Heiko,
>
> The bugzilla provides infrastructure for being able to contribute an
> interpret for annotations, but doesn't contribute any specific
> interpretters. For your simple case, it's probably just as well to
> specialize the method bodies to delegate to getPk/setPk. That also gives
> you an opportunity to produce notifications for these derived features,
> if they're to be viewed in the UI.
>
>
> Heiko wrote:
>> Hi,
>> I my model I have an abstract class with an attribute "pk",
>> and all subclasses have also an attribute like "personPk" or "carPk".
>> All these fields have everytime the same vale as "pk"
>> In my mind so it is usefull to define these as derived ...
>> I found the Bug entry
>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=216701 an I see that
>> possible to define something with annotations and the detailEntry
>> settingDelegate, but I cant find an simple example or build it at my
>> self for a simple delegated attribute.
>> It isn't possible with the options from this bug?
>>
>> Greetings
>> Heiko
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| Re: How to define a Derived/Transient/Votaile Attribute in an EcoreModel (2.6M4) [message #509141 is a reply to message #509125] |
Thu, 21 January 2010 13:51 |
 Ed Merks
Messages: 33141
Registered: July 2009 |
Senior Member |
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This is a multi-part message in MIME format.
--------------070709040104000704080201
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 7bit
Heiko,
With dynamic templates it would be possible to write just the template
for the snippet to insert for the accessors for volatile features...
<%@ include file="*Class/getGenFeature.TODO.override.javajetinc*"
fail="alternative" %>
<%@ start %>
// TODO: implement this method to return the
'<%=genFeature.getFormattedName()%>' <%=genFeature.getFeatureKind()%>
// Ensure that you remove @generated or mark it @generated NOT
<%if (genFeature.isListType()) {%>
// The list is expected to implement
org.eclipse.emf.ecore.util.InternalEList and
org.eclipse.emf.ecore.EStructuralFeature.Setting
// so it's likely that an appropriate subclass of
org.eclipse.emf.ecore.util.<%if (genFeature.isMapType())
{%>EcoreEMap<%} else if (genFeature.isFeatureMapType())
{%>BasicFeatureMap<%} else {%>EcoreEList<%}%> should be used.
<%}%>
throw new UnsupportedOperationException();
<%@ end %><%//Class/getGenFeature.todo.override.javajetinc%>
Heiko wrote:
> Hi Ed,
> thanks for your quick answer. :)
> It's a pity, thats these simple thing its not possible to define in
> Ecore and all things like notification will also be generated. :/
>
> So I will write all the bodies.
>
> Argh thats over 120 ^^
>
> Greetings
> Heiko
>
>
>
> Am 21.01.2010 12:49, schrieb Ed Merks:
>> Heiko,
>>
>> The bugzilla provides infrastructure for being able to contribute an
>> interpret for annotations, but doesn't contribute any specific
>> interpretters. For your simple case, it's probably just as well to
>> specialize the method bodies to delegate to getPk/setPk. That also gives
>> you an opportunity to produce notifications for these derived features,
>> if they're to be viewed in the UI.
>>
>>
>> Heiko wrote:
>>> Hi,
>>> I my model I have an abstract class with an attribute "pk",
>>> and all subclasses have also an attribute like "personPk" or "carPk".
>>> All these fields have everytime the same vale as "pk"
>>> In my mind so it is usefull to define these as derived ...
>>> I found the Bug entry
>>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=216701 an I see that
>>> possible to define something with annotations and the detailEntry
>>> settingDelegate, but I cant find an simple example or build it at my
>>> self for a simple delegated attribute.
>>> It isn't possible with the options from this bug?
>>>
>>> Greetings
>>> Heiko
>
--------------070709040104000704080201
Content-Type: text/html; charset=ISO-8859-15
Content-Transfer-Encoding: 8bit
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-15"
http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Heiko,<br>
<br>
With dynamic templates it would be possible to write just the template
for the snippet to insert for the accessors for volatile features...<br>
<blockquote><%@ include file="<b>Class/getGenFeature.TODO.override.javajetinc</b> "
fail="alternative" %><br>
<%@ start %><br>
Ed Merks
Professional Support: https://www.macromodeling.com/
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