[news.eclipse.newcomer] Re: Setting the range of an ecore datatype

[Ed Merks <Ed.Merks@xxxxxxxxx>]

Jose,

Yes, and the Ecore Tools diagram editor has nice forms for extended meta data.


Jose Hernandez wrote:

Hi Barath,

You specify the range through annotations. For example, if you wanted to 
create a new data type that restricted strings to 255 characters you could 
add this to your ecore model:

<eClassifiers xsi:type="ecore:EDataType" name="String255" 
instanceClassName="java.lang.String">
    <eAnnotations 
source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData">
        <details key="name" value="String255"/>
        <details key="baseType" 
value="http://www.eclipse.org/emf/2003/XMLType#string"/>
        <details key="maxLength" value="255"/>
    </eAnnotations>
</eClassifiers>

If you have an xsd editor you could create your definitions in the xsd and 
then get EMF to turn the xsd into an ecore model.

Regards,
Jose

"Barath Kumar" <barath.kumar@xxxxxxxxx> wrote in message 
news:028c997c4e2bcb832ee45957d17b0aaa$1@xxxxxxxxxxxxxxx...
  

Hi..

But unfornately I am not able to specify the range of the datatype when I 
am creating the ecore model using Ecore diagram.. \


- Barath