| EDataType inheritance [message #21056] |
Mon, 28 August 2006 19:14  |
Eclipse User |
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Hi
Is it possible to have a DataType inherit from another (E)DataType or
EClass ?
I am looking to model
CHAR -> CharacterStringDataType (DTP)
NCHAR -> CHAR
and so on.
Regards
Anthos
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| Re: EDataType inheritance [message #21106 is a reply to message #21056] |
Tue, 29 August 2006 06:40  |
| Eclipse User |
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Originally posted by: merks.ca.ibm.com
This is a multi-part message in MIME format.
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Anil,
With extended meta data you can do
ExtendedMetaData.INSTANCE.setBaseType(eDataTypeDerived, eDataTypeBase)
which produces an EAnnotation as described in XML Schema to Ecore
Mapping
< http://www.eclipse.org/emf/docs/overviews/XMLSchemaToEcoreMa pping.pdf>.
All this really means is that the create from string and convert to
string in the generated factory will delegate to those for the base. Is
that all you are hoping to achieve or is there more? (EDataTypes are
just wrappers for existing/handwritten Java classes, so the Java
inheritance will be whatever it happens to be.)
Anil Samuel wrote:
> Hi
>
> Is it possible to have a DataType inherit from another (E)DataType or
> EClass ?
>
> I am looking to model
>
> CHAR -> CharacterStringDataType (DTP)
> NCHAR -> CHAR
>
> and so on.
>
> Regards
> Anthos
--------------050301050604020305010507
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
Anil,<br>
<br>
With extended meta data you can do
ExtendedMetaData.INSTANCE.setBaseType(eDataTypeDerived, eDataTypeBase)
which produces an EAnnotation as described in <a
href=" http://www.eclipse.org/emf/docs/overviews/XMLSchemaToEcoreMa pping.pdf">XML
Schema to Ecore Mapping</a>. All this really means is that the create
from string and convert to string in the generated factory will
delegate to those for the base. Is that all you are hoping to achieve
or is there more? (EDataTypes are just wrappers for
existing/handwritten Java classes, so the Java inheritance will be
whatever it happens to be.)<br>
<br>
<br>
Anil Samuel wrote:
<blockquote cite="mid44F378C7.40302@oracle.com" type="cite">Hi
<br>
<br>
Is it possible to have a DataType inherit from another (E)DataType or
EClass ?
<br>
<br>
I am looking to model
<br>
<br>
CHAR -> CharacterStringDataType (DTP)
<br>
NCHAR -> CHAR
<br>
<br>
and so on.
<br>
<br>
Regards
<br>
Anthos
<br>
</blockquote>
<br>
</body>
</html>
--------------050301050604020305010507--
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| Re: EDataType inheritance [message #581994 is a reply to message #21056] |
Tue, 29 August 2006 06:40 |
| Eclipse User |
|
|
|
This is a multi-part message in MIME format.
--------------050301050604020305010507
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Anil,
With extended meta data you can do
ExtendedMetaData.INSTANCE.setBaseType(eDataTypeDerived, eDataTypeBase)
which produces an EAnnotation as described in XML Schema to Ecore
Mapping
< http://www.eclipse.org/emf/docs/overviews/XMLSchemaToEcoreMa pping.pdf>.
All this really means is that the create from string and convert to
string in the generated factory will delegate to those for the base. Is
that all you are hoping to achieve or is there more? (EDataTypes are
just wrappers for existing/handwritten Java classes, so the Java
inheritance will be whatever it happens to be.)
Anil Samuel wrote:
> Hi
>
> Is it possible to have a DataType inherit from another (E)DataType or
> EClass ?
>
> I am looking to model
>
> CHAR -> CharacterStringDataType (DTP)
> NCHAR -> CHAR
>
> and so on.
>
> Regards
> Anthos
--------------050301050604020305010507
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
Anil,<br>
<br>
With extended meta data you can do
ExtendedMetaData.INSTANCE.setBaseType(eDataTypeDerived, eDataTypeBase)
which produces an EAnnotation as described in <a
href=" http://www.eclipse.org/emf/docs/overviews/XMLSchemaToEcoreMa pping.pdf">XML
Schema to Ecore Mapping</a>. All this really means is that the create
from string and convert to string in the generated factory will
delegate to those for the base. Is that all you are hoping to achieve
or is there more? (EDataTypes are just wrappers for
existing/handwritten Java classes, so the Java inheritance will be
whatever it happens to be.)<br>
<br>
<br>
Anil Samuel wrote:
<blockquote cite="mid44F378C7.40302@oracle.com" type="cite">Hi
<br>
<br>
Is it possible to have a DataType inherit from another (E)DataType or
EClass ?
<br>
<br>
I am looking to model
<br>
<br>
CHAR -> CharacterStringDataType (DTP)
<br>
NCHAR -> CHAR
<br>
<br>
and so on.
<br>
<br>
Regards
<br>
Anthos
<br>
</blockquote>
<br>
</body>
</html>
--------------050301050604020305010507--
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