Re: Check if parameter is explicitly set

[Robert Scholte]

On Thu, 13 Apr 2017 14:39:44 +0200, András Kerekes  
 wrote:



Hey,

Sure, let me give you more context. The parameter has a default value  
that
users can override. But if they don't set it and another condition is  
true
(some file exists in the project), then we want to use a different  
value, a

different default. Maybe the best is to remove the default value, and in
the Mojo's execute() if it's null (the user didn't set it) we can decide
what value to assign to it based on the mentioned condition.


Right, a *conditional* default value should not be treated as a default  
value.




András

On Thu, Apr 13, 2017, 02:41 Karl Heinz Marbaise   
wrote:



Hi,

On 13/04/17 02:05, András Kerekes wrote:
> Hi,
>
> I'm working on a Maven plugin and I'd like to check whether a  
parameter

for
> a Mojo has been explicitly set by the user (via POM), or it contains  
the

> default value. Is there a way to do this?

Maybe I misunderstand a thing but why do you need to distinguish between
those two? Isn't that why defaultValue exist?

Kind regards
Karl Heinz Marbaise

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Re: Check if parameter is explicitly set

[András Kerekes]

Hey,

Sure, let me give you more context. The parameter has a default value that
users can override. But if they don't set it and another condition is true
(some file exists in the project), then we want to use a different value, a
different default. Maybe the best is to remove the default value, and in
the Mojo's execute() if it's null (the user didn't set it) we can decide
what value to assign to it based on the mentioned condition.

András

On Thu, Apr 13, 2017, 02:41 Karl Heinz Marbaise  wrote:

> Hi,
>
> On 13/04/17 02:05, András Kerekes wrote:
> > Hi,
> >
> > I'm working on a Maven plugin and I'd like to check whether a parameter
> for
> > a Mojo has been explicitly set by the user (via POM), or it contains the
> > default value. Is there a way to do this?
>
> Maybe I misunderstand a thing but why do you need to distinguish between
> those two? Isn't that why defaultValue exist?
>
> Kind regards
> Karl Heinz Marbaise
>
> -
> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org
> For additional commands, e-mail: dev-h...@maven.apache.org
>
>

Re: Check if parameter is explicitly set

[Karl Heinz Marbaise]

Hi,

On 13/04/17 02:05, András Kerekes wrote:

Hi,

I'm working on a Maven plugin and I'd like to check whether a parameter for
a Mojo has been explicitly set by the user (via POM), or it contains the
default value. Is there a way to do this?


Maybe I misunderstand a thing but why do you need to distinguish between 
those two? Isn't that why defaultValue exist?


Kind regards
Karl Heinz Marbaise

-
To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org
For additional commands, e-mail: dev-h...@maven.apache.org

Re: Check if parameter is explicitly set

[Tibor Digana]

Try to put a break point to setter but you won't distinguish between user
and default value.

On Thu, Apr 13, 2017 at 2:06 AM, András Kerekes [via Maven] <
ml-node+s40175n5905937...@n5.nabble.com> wrote:

> Hi,
>
> I'm working on a Maven plugin and I'd like to check whether a parameter
> for
> a Mojo has been explicitly set by the user (via POM), or it contains the
> default value. Is there a way to do this?
>
> Thanks,
>  András
>
>
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