Re: [dtp-dev] DBDefinition model change request

[Lawrence E Dunnell <ledunnel@xxxxxxxxxx>]

If you haven't already, I would suggest
you open a defect in bugzilla for this so that we don't lose this information
and can track these requirements as we move forward.

In Bugzilla, the Product=Data Tools
and Component=ModelBase.

Thanks,

Larry Dunnell
Internet address: ledunnel@xxxxxxxxxx

Hui.Cao@xxxxxxxxxx
Sent by: dtp-dev-bounces@xxxxxxxxxxx

08/31/2005 03:27 PM

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To	dtp-models-dev@xxxxxxxxxxx
cc	dtp-dev@xxxxxxxxxxx
Subject	[dtp-dev] DBDefinition model change request

Hi everybody. 
       I'm Hui Cao, a committer of the SQL Dev project.
When we investigated on how to integrate the SQL Editor/Debugger framework
with the Model Base project, we made some modifications of the dbdefinition
model to fit our needs. I bring them up here and hope these modifications
can be included in the next version of the dbdefinition model. Here they
are: 
       1. Add a new class called "DebuggerDefinition"
with an attribute called conditionSupported which is used to specify whether
a databse debugger supports condition for breakpoints. This allows us to
correctly initialize the breakpoint property page.
 <eClassifiers xsi:type="ecore:EClass" name="DebuggerDefinition">
   <eStructuralFeatures xsi:type="ecore:EAttribute" name="conditionSupported"
eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EBoolean"/>
 </eClassifiers> 
       2. Add a new reference to a DebuggerDefinition object
in DatabaseVendorDefinition
   <eStructuralFeatures xsi:type="ecore:EReference" name="debuggerDefinition"
eType="#//DebuggerDefinition"/> 
       3. Add 2 new
attributes in DatabaseVendorDefinition:
eventSupported and sqlUdfSupported, referring respecitively to the features
that whether a database vendor supports sql event or user defined function.
These attributes are necessary for us to create/edit/run/debug these objects.
   <eStructuralFeatures xsi:type="ecore:EAttribute" name="eventSupported"
eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EBoolean"/>
   <eStructuralFeatures xsi:type="ecore:EAttribute" name="sqlUdfSupported"
eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EBoolean"/>
       
       Along with that, these correspondent APIs should
be added in org.eclipse.wst.rdb.internal.core.definition.DatabaseDefinition:
       public DebuggerDefinition getDebuggerDefinition();
       public boolean supportsEvents();
       public boolean supportsSQLUDFs();

       and the following implementation should be in org.eclipse.wst.rdb.internal.core.definition.DatabaseDefinitionImpl
: 
       public boolean supportsEvents() {
               this.loadDatabaseDefinition();
               return this.databaseVendorDefinition.isEventSupported();
       } 
       
       public boolean supportsSQLUDFs() {
               this.loadDatabaseDefinition();
               return this.databaseVendorDefinition.isSqlUdfSupported();
       } 
       
       public DebuggerDefinition getDebuggerDefinition()
{ 
               this.loadDatabaseDefinition();
               return this.databaseVendorDefinition.getDebuggerDefinition();
       } 

Any feedback is appreciated! Thanks! 

Best Regards!

Hui Cao
Sr S/W Eng - Dev
Sybase, Inc. Shanghai, China
Tel: 86-21-68799918-3047
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