Thread: [Springframework-rcp-dev] Best way for a special Constraint...

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springframework-rcp-dev

[Springframework-rcp-dev] Best way for a special Constraint...

From: Benoit X. <bx...@ob...> - 2008-02-08 16:49:45

Hi All,

 

It is Friday afternoon and my brain is slowing down.  What would be the best
way to say:

 

If Property X == 'VAL_1' then Property Y must be ABSENT/null

If Property X == 'VAL_1' then Property Z must be ABSENT/null

If Property X == 'VAL_2' then Property Y is required

If Property X == 'VAL_3' then Property Z is required

 

The last 2 are easy:

add(new RequiredIfTrue("Y", eq("X", "VAL_2")));

add(new RequiredIfTrue("Z", eq("X", "VAL_3")));

 

but something like AbsentIfTrue would be useful.

But how would you check for absence? Not(present("Y")) ?

 

Second question, is it possible to put a rule with a given regular
expression (like ISIN which are 2 char followed by 9 numerics).

 

Many thanks,

 

Benoit

 

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Re: [Springframework-rcp-dev] Best way for a special Constraint...

From: Jan H. <jh...@sc...> - 2008-02-11 07:06:05

Have you tried something like:

constraints.ifTrue(constraints.eq("X", ValueY),
constraints.not(constraints.present(Y)));

Maybe we should indeed add an AbsentIfTrue as an opposite of the
RequiredIfTrue.

Kind Regards,
Jan


On Fri, 2008-02-08 at 16:44 +0000, Benoit Xhenseval wrote:
> Hi All,
> 
>  
> 
> It is Friday afternoon and my brain is slowing down…  What would be
> the best way to say:
> 
>  
> 
> If Property X == ‘VAL_1’ then Property Y must be ABSENT/null
> 
> If Property X == ‘VAL_1’ then Property Z must be ABSENT/null
> 
> If Property X == ‘VAL_2’ then Property Y is required
> 
> If Property X == ‘VAL_3’ then Property Z is required
> 
>  
> 
> The last 2 are easy:
> 
> add(new RequiredIfTrue("Y", eq("X", “VAL_2”)));
> 
> add(new RequiredIfTrue("Z", eq("X", “VAL_3”)));
> 
>  
> 
> but something like AbsentIfTrue would be useful…
> 
> But how would you check for absence? Not(present(“Y”)) ?
> 
>  
> 
> Second question, is it possible to put a rule with a given regular
> expression (like ISIN which are 2 char followed by 9 numerics).
> 
>  
> 
> Many thanks,
> 
>  
> 
> Benoit
> 
>  
> 
> ------------------------------
> 
> IMPORTANT NOTICE 
> 
> This communication contains information that is considered
> confidential and may also be privileged . It is for the exclusive use
> of the intended recipient(s). If you are not the intended recipient(s)
> please note that any form of distribution, copying or use of this
> communication or the information in it is strictly prohibited and may
> be unlawful. If you have received this communication in error please
> return it to the sender and delete the original.
> 
>  
> 
> 
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Re: [Springframework-rcp-dev] Best way for a special Constraint...

From: Geoffrey De S. <ge0...@gm...> - 2008-02-11 09:14:49

Maybe it's better to disable (and clear) the field if the other property 
is true?

With kind regards,
Geoffrey De Smet

Jan Hoskens schreef:
> Have you tried something like:
> 
> constraints.ifTrue(constraints.eq("X", ValueY),
> constraints.not(constraints.present(Y)));
> 
> Maybe we should indeed add an AbsentIfTrue as an opposite of the
> RequiredIfTrue.
> 
> Kind Regards,
> Jan
> 
> 
> On Fri, 2008-02-08 at 16:44 +0000, Benoit Xhenseval wrote:
>> Hi All,
>>
>>  
>>
>> It is Friday afternoon and my brain is slowing down…  What would be
>> the best way to say:
>>
>>  
>>
>> If Property X == ‘VAL_1’ then Property Y must be ABSENT/null
>>
>> If Property X == ‘VAL_1’ then Property Z must be ABSENT/null
>>
>> If Property X == ‘VAL_2’ then Property Y is required
>>
>> If Property X == ‘VAL_3’ then Property Z is required
>>
>>  
>>
>> The last 2 are easy:
>>
>> add(new RequiredIfTrue("Y", eq("X", “VAL_2”)));
>>
>> add(new RequiredIfTrue("Z", eq("X", “VAL_3”)));
>>
>>  
>>
>> but something like AbsentIfTrue would be useful…
>>
>> But how would you check for absence? Not(present(“Y”)) ?
>>
>>  
>>
>> Second question, is it possible to put a rule with a given regular
>> expression (like ISIN which are 2 char followed by 9 numerics).
>>
>>  
>>
>> Many thanks,
>>
>>  
>>
>> Benoit
>>
>>  
>>
>> ------------------------------
>>
>> IMPORTANT NOTICE 
>>
>> This communication contains information that is considered
>> confidential and may also be privileged . It is for the exclusive use
>> of the intended recipient(s). If you are not the intended recipient(s)
>> please note that any form of distribution, copying or use of this
>> communication or the information in it is strictly prohibited and may
>> be unlawful. If you have received this communication in error please
>> return it to the sender and delete the original.
>>
>>  
>>
>>
>> -------------------------------------------------------------------------
>> This SF.net email is sponsored by: Microsoft
>> Defy all challenges. Microsoft(R) Visual Studio 2008.
>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
>> _______________________________________________ Springframework-rcp-dev mailing list Spr...@li... https://lists.sourceforge.net/lists/listinfo/springframework-rcp-dev
> 
> 
>  **** DISCLAIMER ****
>  http://www.schaubroeck.be/maildisclaimer.htm
> 
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
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