Home » Modeling » EMF » Multiple instances of an application
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| Re: Multiple instances of an application [message #488547 is a reply to message #488445] |
Tue, 29 September 2009 08:29   |
 Janred 
Messages: 20
Registered: August 2009 |
Junior Member |
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|
Ed,
Currently my setting works for only a single Eclipse project.
I store my model in the DB using TENEO.I have extended the Navigator
generated by EMF/GMF (XXNavigatorContentProvider) so that I could view
my model from the DB. This "fake resource" is added to the existing
Eclipse project.
So , in the getChildren() method of the XXNavigatorContentProvider,
I use the following code
HibernateXMLResourceFactory resourceSet = new HibernateXMLResourceFactory();
final Resource resource =
resourceSet.createResource(DATABASE_URI_MODEL_AND_DIAGRAM);
resource.load(Collections.EMPTY_MAP);
My question was if I could store multiple models in the same DB?
thx
Jan
Ed Merks schrieb:
> Jan,
>
> I'm not really sure how you associate a ResourceSet with an Eclipse
> project. You can create any number of separate resource sets, so I
> imagine the answer is yes, you can and yes it will work.
>
>
> Jan Red wrote:
>> Hello all,
>>
>> I am using TENEO to persist my model(based on GMF,EMF).I have so far
>> associated a ResourceSet to an Eclipse project. Is it possible to have
>> more instances of such a setting?
>>
>> I mean multiple Eclipse projects, with each project having its own
>> Resource. Will it work in the context of a Database persistence?
>>
>> Currently I am initializing the factory and my underlying model like
>> this :
>>
>> HibernateXMLResourceFactory resourceSet
>> = new HibernateXMLResourceFactory();
>> final Resource resource = resourceSet
>> .createResource(DATABASE_URI_MODEL_AND_DIAGRAM);
>> resource.load(Collections.EMPTY_MAP);
>>
>>
>> thx
>> Jan Red
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| Re: Multiple instances of an application [message #488561 is a reply to message #488547] |
Tue, 29 September 2009 09:12 |
Ed Merks
Messages: 33141
Registered: July 2009 |
Senior Member |
|
|
Jan,
What's the actual value of DATABASE_URI_MODEL_AND_DIAGRAM; that seems to
be the key to answering your question. You'll need different URIs to
access different things. Note that a ResourceFactory is not a ResourceSet.
Jan Red wrote:
> Ed,
>
> Currently my setting works for only a single Eclipse project.
>
> I store my model in the DB using TENEO.I have extended the Navigator
> generated by EMF/GMF (XXNavigatorContentProvider) so that I could view
> my model from the DB. This "fake resource" is added to the existing
> Eclipse project.
>
> So , in the getChildren() method of the XXNavigatorContentProvider,
> I use the following code
>
> HibernateXMLResourceFactory resourceSet = new
> HibernateXMLResourceFactory();
> final Resource resource =
> resourceSet.createResource(DATABASE_URI_MODEL_AND_DIAGRAM);
> resource.load(Collections.EMPTY_MAP);
>
> My question was if I could store multiple models in the same DB?
>
> thx
> Jan
>
>
> Ed Merks schrieb:
>> Jan,
>>
>> I'm not really sure how you associate a ResourceSet with an Eclipse
>> project. You can create any number of separate resource sets, so I
>> imagine the answer is yes, you can and yes it will work.
>>
>>
>> Jan Red wrote:
>>> Hello all,
>>>
>>> I am using TENEO to persist my model(based on GMF,EMF).I have so far
>>> associated a ResourceSet to an Eclipse project. Is it possible to
>>> have more instances of such a setting?
>>>
>>> I mean multiple Eclipse projects, with each project having its own
>>> Resource. Will it work in the context of a Database persistence?
>>>
>>> Currently I am initializing the factory and my underlying model like
>>> this :
>>>
>>> HibernateXMLResourceFactory resourceSet
>>> = new HibernateXMLResourceFactory();
>>> final Resource resource = resourceSet
>>> .createResource(DATABASE_URI_MODEL_AND_DIAGRAM);
>>> resource.load(Collections.EMPTY_MAP);
>>>
>>>
>>> thx
>>> Jan Red
Ed Merks
Professional Support: https://www.macromodeling.com/
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| Re: Multiple instances of an application [message #488569 is a reply to message #488561] |
Tue, 29 September 2009 09:24 |
Martin Taal
Messages: 5468
Registered: July 2009 |
Senior Member |
|
|
Hi Jan,
You can put different models in one DB. With Teneo the object-resource relation is not stored in the database. This
means that you can load objects freely in resources (using queries) or you can let Teneo do it for you. In the last case
Teneo detects which types represent the root of the containment hierarchy and will load the instances of these types in
a resource.
But as Ed says, to control different load behavior you need different URI's or you can extend the hibernate resource and
implement your own load behavior.
btw, I don't read all EMF posts all the time, but if you prefix the subject with [Teneo] then I am sure to check and answer.
gr. Martin
Ed Merks wrote:
> Jan,
>
> What's the actual value of DATABASE_URI_MODEL_AND_DIAGRAM; that seems to
> be the key to answering your question. You'll need different URIs to
> access different things. Note that a ResourceFactory is not a ResourceSet.
>
>
> Jan Red wrote:
>> Ed,
>>
>> Currently my setting works for only a single Eclipse project.
>>
>> I store my model in the DB using TENEO.I have extended the Navigator
>> generated by EMF/GMF (XXNavigatorContentProvider) so that I could view
>> my model from the DB. This "fake resource" is added to the existing
>> Eclipse project.
>>
>> So , in the getChildren() method of the XXNavigatorContentProvider,
>> I use the following code
>>
>> HibernateXMLResourceFactory resourceSet = new
>> HibernateXMLResourceFactory();
>> final Resource resource =
>> resourceSet.createResource(DATABASE_URI_MODEL_AND_DIAGRAM);
>> resource.load(Collections.EMPTY_MAP);
>>
>> My question was if I could store multiple models in the same DB?
>>
>> thx
>> Jan
>>
>>
>> Ed Merks schrieb:
>>> Jan,
>>>
>>> I'm not really sure how you associate a ResourceSet with an Eclipse
>>> project. You can create any number of separate resource sets, so I
>>> imagine the answer is yes, you can and yes it will work.
>>>
>>>
>>> Jan Red wrote:
>>>> Hello all,
>>>>
>>>> I am using TENEO to persist my model(based on GMF,EMF).I have so far
>>>> associated a ResourceSet to an Eclipse project. Is it possible to
>>>> have more instances of such a setting?
>>>>
>>>> I mean multiple Eclipse projects, with each project having its own
>>>> Resource. Will it work in the context of a Database persistence?
>>>>
>>>> Currently I am initializing the factory and my underlying model like
>>>> this :
>>>>
>>>> HibernateXMLResourceFactory resourceSet
>>>> = new HibernateXMLResourceFactory();
>>>> final Resource resource = resourceSet
>>>> .createResource(DATABASE_URI_MODEL_AND_DIAGRAM);
>>>> resource.load(Collections.EMPTY_MAP);
>>>>
>>>>
>>>> thx
>>>> Jan Red
--
With Regards, Martin Taal
Springsite/Elver.org
Office: Hardwareweg 4, 3821 BV Amersfoort
Postal: Nassaulaan 7, 3941 EC Doorn
The Netherlands
Cell: +31 (0)6 288 48 943
Tel: +31 (0)84 420 2397
Fax: +31 (0)84 225 9307
Mail: mtaal@springsite.com - mtaal@elver.org
Web: www.springsite.com - www.elver.org
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| Re: [TENEO]Re: Multiple instances of an application [message #488628 is a reply to message #488592] |
Tue, 29 September 2009 14:01 |
Martin Taal
Messages: 5468
Registered: July 2009 |
Senior Member |
|
|
Hi Jan,
If you mean multiple epackages then you need to create a new Datastore with these epackages and use the datastore name
in the dsname parameter.
I am not sure though if I am answering your question...
gr. Martin
Jan Red wrote:
> Hello,
>
> This is my DATABASE_URI_MODEL_AND_DIAGRAM :
> hbxml://?dsname="+DATASTORE_NAME&query1=from Application&&query2=from
> Diagram
> where Application represents the root of the containment hierarchy.
>
> According to Martin I understand that it is possible to do what I
> need(multiple models). So how do I initialize another model?
>
> thank you
> Jan Red
>
>
> Martin Taal schrieb:
>> Hi Jan,
>> You can put different models in one DB. With Teneo the object-resource
>> relation is not stored in the database. This means that you can load
>> objects freely in resources (using queries) or you can let Teneo do it
>> for you. In the last case Teneo detects which types represent the root
>> of the containment hierarchy and will load the instances of these
>> types in a resource.
>> But as Ed says, to control different load behavior you need different
>> URI's or you can extend the hibernate resource and implement your own
>> load behavior.
>>
>> btw, I don't read all EMF posts all the time, but if you prefix the
>> subject with [Teneo] then I am sure to check and answer.
>>
>> gr. Martin
>>
>> Ed Merks wrote:
>>> Jan,
>>>
>>> What's the actual value of DATABASE_URI_MODEL_AND_DIAGRAM; that seems
>>> to be the key to answering your question. You'll need different URIs
>>> to access different things. Note that a ResourceFactory is not a
>>> ResourceSet.
>>>
>>>
>
>
--
With Regards, Martin Taal
Springsite/Elver.org
Office: Hardwareweg 4, 3821 BV Amersfoort
Postal: Nassaulaan 7, 3941 EC Doorn
The Netherlands
Cell: +31 (0)6 288 48 943
Tel: +31 (0)84 420 2397
Fax: +31 (0)84 225 9307
Mail: mtaal@springsite.com - mtaal@elver.org
Web: www.springsite.com - www.elver.org
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|
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| Re: [TENEO]Re: Multiple instances of an application [message #488641 is a reply to message #488628] |
Tue, 29 September 2009 14:45 |
Janred
Messages: 20
Registered: August 2009 |
Junior Member |
|
|
Hi Martin,
Maybe I am not expressing myself clearly. I have an application based on
an Ecore meta-model. This application is designed with the help of a few
editors. The editors are generated using GMF.
Since I did not want to use a file-system(default with GMF), I persisted
the model using TENEO. I followed the GMF Editor tutorials in Elver.org.
Since I wanted to show the model(in the database) to the user as a tree
I extended the default Navigator generated by GMF. So everytime the user
opens a project(Navigator) or clicks on DB Editor I initialize a
HibernateXMLResourceFactory and loads the resources as a tree.
As you have advised, I will try to use another Datastore for multiple
models.
thank you
Jan Red
Martin Taal schrieb:
> Hi Jan,
> If you mean multiple epackages then you need to create a new Datastore
> with these epackages and use the datastore name in the dsname parameter.
>
> I am not sure though if I am answering your question...
>
> gr. Martin
>
> Jan Red wrote:
>> Hello,
>>
>> This is my DATABASE_URI_MODEL_AND_DIAGRAM :
>> hbxml://?dsname="+DATASTORE_NAME&query1=from Application&&query2=from
>> Diagram
>> where Application represents the root of the containment hierarchy.
>>
>> According to Martin I understand that it is possible to do what I
>> need(multiple models). So how do I initialize another model?
>>
>> thank you
>> Jan Red
>>
>>
>> Martin Taal schrieb:
>>> Hi Jan,
>>> You can put different models in one DB. With Teneo the
>>> object-resource relation is not stored in the database. This means
>>> that you can load objects freely in resources (using queries) or you
>>> can let Teneo do it for you. In the last case Teneo detects which
>>> types represent the root of the containment hierarchy and will load
>>> the instances of these types in a resource.
>>> But as Ed says, to control different load behavior you need different
>>> URI's or you can extend the hibernate resource and implement your own
>>> load behavior.
>>>
>>> btw, I don't read all EMF posts all the time, but if you prefix the
>>> subject with [Teneo] then I am sure to check and answer.
>>>
>>> gr. Martin
>>>
>>> Ed Merks wrote:
>>>> Jan,
>>>>
>>>> What's the actual value of DATABASE_URI_MODEL_AND_DIAGRAM; that
>>>> seems to be the key to answering your question. You'll need
>>>> different URIs to access different things. Note that a
>>>> ResourceFactory is not a ResourceSet.
>>>>
>>>>
>>
>>
>
>
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| Re: [TENEO]Re: Multiple instances of an application [message #488647 is a reply to message #488641] |
Tue, 29 September 2009 15:16 |
Martin Taal
Messages: 5468
Registered: July 2009 |
Senior Member |
|
|
Hi Jan,
To add, I ment that you need another datastore if you add epackages at runtime. If you know all the epackages when your
application starts then you can put them all in one datastore.
gr. Martin
Jan Red wrote:
> Hi Martin,
>
> Maybe I am not expressing myself clearly. I have an application based on
> an Ecore meta-model. This application is designed with the help of a few
> editors. The editors are generated using GMF.
>
> Since I did not want to use a file-system(default with GMF), I persisted
> the model using TENEO. I followed the GMF Editor tutorials in Elver.org.
> Since I wanted to show the model(in the database) to the user as a tree
> I extended the default Navigator generated by GMF. So everytime the user
> opens a project(Navigator) or clicks on DB Editor I initialize a
> HibernateXMLResourceFactory and loads the resources as a tree.
>
> As you have advised, I will try to use another Datastore for multiple
> models.
>
> thank you
> Jan Red
>
>
> Martin Taal schrieb:
>> Hi Jan,
>> If you mean multiple epackages then you need to create a new Datastore
>> with these epackages and use the datastore name in the dsname parameter.
>>
>> I am not sure though if I am answering your question...
>>
>> gr. Martin
>>
>> Jan Red wrote:
>>> Hello,
>>>
>>> This is my DATABASE_URI_MODEL_AND_DIAGRAM :
>>> hbxml://?dsname="+DATASTORE_NAME&query1=from Application&&query2=from
>>> Diagram
>>> where Application represents the root of the containment hierarchy.
>>>
>>> According to Martin I understand that it is possible to do what I
>>> need(multiple models). So how do I initialize another model?
>>>
>>> thank you
>>> Jan Red
>>>
>>>
>>> Martin Taal schrieb:
>>>> Hi Jan,
>>>> You can put different models in one DB. With Teneo the
>>>> object-resource relation is not stored in the database. This means
>>>> that you can load objects freely in resources (using queries) or you
>>>> can let Teneo do it for you. In the last case Teneo detects which
>>>> types represent the root of the containment hierarchy and will load
>>>> the instances of these types in a resource.
>>>> But as Ed says, to control different load behavior you need
>>>> different URI's or you can extend the hibernate resource and
>>>> implement your own load behavior.
>>>>
>>>> btw, I don't read all EMF posts all the time, but if you prefix the
>>>> subject with [Teneo] then I am sure to check and answer.
>>>>
>>>> gr. Martin
>>>>
>>>> Ed Merks wrote:
>>>>> Jan,
>>>>>
>>>>> What's the actual value of DATABASE_URI_MODEL_AND_DIAGRAM; that
>>>>> seems to be the key to answering your question. You'll need
>>>>> different URIs to access different things. Note that a
>>>>> ResourceFactory is not a ResourceSet.
>>>>>
>>>>>
>>>
>>>
>>
>>
--
With Regards, Martin Taal
Springsite/Elver.org
Office: Hardwareweg 4, 3821 BV Amersfoort
Postal: Nassaulaan 7, 3941 EC Doorn
The Netherlands
Cell: +31 (0)6 288 48 943
Tel: +31 (0)84 420 2397
Fax: +31 (0)84 225 9307
Mail: mtaal@springsite.com - mtaal@elver.org
Web: www.springsite.com - www.elver.org
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