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IllegalStateException: Cannot modify resource set without a write transaction [message #415153]

Sun, 02 December 2007 18:48

Soeren Kemmann

Messages: 15
Registered: July 2009

Junior Member

Hi there,

when performing a change of my model in a subclassed RecordingCommand I get
this ugly error:
IllegalStateException: Cannot modify resource set without a write
transaction
The situation in more detail:
I have a model ModelA, which has the Attribute B.
I have subclassed RecordingCommand in the way, that I pass ModelA and the
Attribute B to the new RecordingCommand.
In the doExecute() method I now just want to do the following:
ModelA.setB(B)
.... but I always get this error!?

Has anyone an idea??

Thanks a lot!!

S

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Re: IllegalStateException: Cannot modify resource set without a write transaction [message #415159 is a reply to message #415153]

Mon, 03 December 2007 12:04

Ed Merks

Messages: 33142
Registered: July 2009

Senior Member

Soeren,

I'm sure Christian will have a more helpful answer but I wonder if
you've read the help documentation (available in the IDE's help) he
wrote which I'm pretty sure will answer this basic question?

Soeren Kemmann wrote:
> Hi there,
>
> when performing a change of my model in a subclassed RecordingCommand I get
> this ugly error:
> IllegalStateException: Cannot modify resource set without a write
> transaction
> The situation in more detail:
> I have a model ModelA, which has the Attribute B.
> I have subclassed RecordingCommand in the way, that I pass ModelA and the
> Attribute B to the new RecordingCommand.
> In the doExecute() method I now just want to do the following:
> ModelA.setB(B)
> .... but I always get this error!?
>
> Has anyone an idea??
>
> Thanks a lot!!
>
> Sören
>
>
>

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: IllegalStateException: Cannot modify resource set without a write transaction [message #415164 is a reply to message #415153]

Mon, 03 December 2007 15:19

Eclipse User

Originally posted by: cdamus.ca.ibm.com

Hi, Soeren,

The RecordingCommand will not actually create a transaction. It relies on
the TransactionalCommandStack to do that. Is it possible that you're not
actually using your editing domain's command stack to execute the command?

if you have multiple transactional editing domains, is it possible that the
command is trying (perhaps inadvertently) to change objects in another
domain?

HTH,

Christian

Soeren Kemmann wrote:

> Hi there,
>
> when performing a change of my model in a subclassed RecordingCommand I
> get this ugly error:
> IllegalStateException: Cannot modify resource set without a write
> transaction
> The situation in more detail:
> I have a model ModelA, which has the Attribute B.
> I have subclassed RecordingCommand in the way, that I pass ModelA and the
> Attribute B to the new RecordingCommand.
> In the doExecute() method I now just want to do the following:
> ModelA.setB(B)
> ... but I always get this error!?
>
> Has anyone an idea??
>
> Thanks a lot!!
>
> Sren

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