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Externalize workflow settings in xtext 1.0 [message #554536]

Mon, 23 August 2010 09:51

Heiko Tappe
Messages: 13
Registered: March 2010

Junior Member

In xtext 0.7.2 I used to have a properties file to externalize some settings into a separate file.
I could refer to the settings via

<workflow>
	<property name="propsfile" value="workflow/DslToCode.properties"/>
	<property file="${propsfile}"/>
...

What would be the easiest/best way to do something similar in xtext 1.0?

--Heiko

[Updated on: Mon, 23 August 2010 09:51]

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Re: Externalize workflow settings in xtext 1.0 [message #554550 is a reply to message #554536]

Mon, 23 August 2010 10:05

Sven Efftinge
Messages: 1667
Registered: July 2009

Senior Member

You should write an MWE2 workflow which just defines the properties (you
prevously had in the properties file) and calls the main mwe2 component.

Something like this:

module Caller
@my.MainModule {
property1 = "foo bar"
property2 = true
property3 = ComplexStuff { foo="bar"}
}

Am 8/23/10 3:51 PM, schrieb Heiko Tappe:
> In xtext 0.7.2 I used to have a properties file to externalize some
> settings into a separate file.
> I could refer to the settings via
>
> <workflow>
> <property name="propsfile"
> value="workflow/KomalogDslToCode.properties"/>
> <property file="${propsfile}"/>
> ..
>
> What would be the easiest/best way to do something similar in xtext 1.0?
>
> --Heiko

--
--
Need professional support for Xtext or other Eclipse Modeling technologies?
Go to: http://xtext.itemis.com
Twitter : @svenefftinge
Blog : http://blog.efftinge.de

--
Need professional support for Xtext and EMF?
Go to: http://xtext.itemis.com
Twitter : @svenefftinge
Blog : blog.efftinge.de

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Re: Externalize workflow settings in xtext 1.0 [message #554560 is a reply to message #554550]

Mon, 23 August 2010 10:29

Heiko Tappe
Messages: 13
Registered: March 2010

Junior Member

Strange... that works.
That's exactly what I tried to do in the first place. But I missed to actually run it because the Eclipse MWE2 Editor showed errors:

"couldn't resolve reference to ..." the model to be called.

Is that a known behaviour or even a bug?

--Heiko

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Re: Externalize workflow settings in xtext 1.0 [message #554583 is a reply to message #554560]

Mon, 23 August 2010 11:23

Sebastian Zarnekow
Messages: 2788
Registered: July 2009

Senior Member

Hi Heiko,

the reference to the model should be resolved without an error marker in
the editor. Do you get any content proposals after the @ ? Is your
main-workflow located in another plug-in? Does it export the package
that contains the workflow?

Regards,
Sebastian
--
Need professional support for Eclipse Modeling?
Go visit: http://xtext.itemis.com

Am 23.08.10 16:29, schrieb Heiko Tappe:
> Strange... that works.
> That's exactly what I tried to do in the first place. But I missed to
> actually run it because the Eclipse MWE2 Editor showed errors:
>
> "couldn't resolve reference to ..." the model to be called.
>
> Is that a known behaviour or even a bug?
>
> --Heiko

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Re: Externalize workflow settings in xtext 1.0 [message #554767 is a reply to message #554583]

Tue, 24 August 2010 07:29

Heiko Tappe
Messages: 13
Registered: March 2010

Junior Member

Hmm... today everything seems to be just fine. Maybe Eclipse was a little bit confused yesterday Wink

But another (hopefully last) problem arises when I try to follow Karsten Thoms approach to build xtext projects via Maven Tycho (http:// kthoms.wordpress.com/2010/08/18/building-xtext-projects-with -maven-tycho/). I keep getting this error:

[main] ERROR o.e.e.m.launch.runtime.Mwe2Launcher - Problems instantiating module Caller: Cannot resolve proxy: file:/C:/javaee_helios/test/trunk/net.transdata.test.codegen.generator/src/main/resources/workflow/testDslToCode.mwe2#xtextLink_:://@root/@assignment.1/@value::http://www.eclipse.org/xtext/common/mwe2/Mwe2½Referrable½0::/1
java.lang.RuntimeException: Problems instantiating module Caller: Cannot resolve proxy: file:/C:/javaee_helios/test/trunk/net.transdata.test.codegen.generator/src/main/resources/workflow/testDslToCode.mwe2#xtextLink_:://@root/@assignment.1/@value::http://www.eclipse.org/xtext/common/mwe2/Mwe2½Referrable½0::/1

Obviously the called module cannot be found. Running it from within Eclipse is no problem. Any idea?

--Heiko

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