Re: alter a map in a vector (reference)

2013-06-03 Thread Yinka Erinle
Thanks Meikel for the prompt reply, that does it.

Please can you elaborate on how I can use the solution below to update a 
particular entry in the vector.

[{:id 1 :email {"a...@mail.com 1}}
  {:id 2 :email {"d...@mail.com 1}}
  {:id 3 :email {"g...@mail.com 2}}]

So I will like to write a function that accepts an id and then updates the 
counter in email section of the given id.

(defn update-counter [x xs]  
   (dosync 
  (alter result ..

Thanks again for your time.

On Monday, June 3, 2013 9:23:47 PM UTC+1, Meikel Brandmeyer (kotarak) wrote:
>
> Hi,
>
> Am Montag, 3. Juni 2013 22:16:54 UTC+2 schrieb Yinka Erinle:
>>
>> Given I have the following 
>> (def result (ref [ { :id 1 :emails { "yi...@mail.com" 1}} ] ) )
>>
>> I like to alter the result in a transaction to become
>> [{:id 1 :emails { "yi...@mail.com" 2}}]; increment the counter from 
>> 1 to 2
>>
>> Please can someone provide pointers.
>>
>>
> You can use the uniform update principle to stitch together alter and 
> update-in.
>
> (dosync
>   (alter result update-in [0 :emails "a@b.c"] inc))
>
> Kind regards
> Meikel
>  
>

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alter a map in a vector (reference)

2013-06-03 Thread Yinka Erinle
Hi,

I struggling to find a way to alter a value in a map that resides in a 
vector.

Given I have the following 
(def result (ref [ { :id 1 :emails { "yi...@mail.com" 1}} ] ) )

I like to alter the result in a transaction to become
[{:id 1 :emails { "yi...@mail.com" 2}}]; increment the counter from 1 
to 2

Please can someone provide pointers.

Thanks,
Yinka.

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Re: Multiple java class import

2012-12-09 Thread Yinka Erinle
Thanks

On Sunday, December 9, 2012 3:11:02 PM UTC, Jim foo.bar wrote:
>
>  Rich explains why here:
>
> https://groups.google.com/forum/?fromgroups=#!msg/clojure/-gCg_0wmT5o/H7WobsV-yt0J
>
> Jim
>
>
> On 09/12/12 15:06, Yinka Erinle wrote:
>  
> Thanks Jim.  
> I wonder why.
>
> On Sunday, December 9, 2012 2:43:54 PM UTC, Jim foo.bar wrote: 
>>
>> Unfortunately you have to import each class separately...no wild-cards 
>> in ns declarations :-( 
>>
>> Jim 
>>
>> On 09/12/12 14:21, Yinka Erinle wrote: 
>> > Hi, 
>> > 
>> > Is it possible to import multiple java classes using import? 
>> > e.g (import '(java.naming.*)) 
>> > 
>> > Or will I have to import each class separately? 
>> > 
>> > Thanks, 
>> > Yinka. 
>> > -- 
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Re: Multiple java class import

2012-12-09 Thread Yinka Erinle
Thanks Jim. 
I wonder why.

On Sunday, December 9, 2012 2:43:54 PM UTC, Jim foo.bar wrote:
>
> Unfortunately you have to import each class separately...no wild-cards 
> in ns declarations :-( 
>
> Jim 
>
> On 09/12/12 14:21, Yinka Erinle wrote: 
> > Hi, 
> > 
> > Is it possible to import multiple java classes using import? 
> > e.g (import '(java.naming.*)) 
> > 
> > Or will I have to import each class separately? 
> > 
> > Thanks, 
> > Yinka. 
> > -- 
> > You received this message because you are subscribed to the Google 
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>
>

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Multiple java class import

2012-12-09 Thread Yinka Erinle
Hi,

Is it possible to import multiple java classes using import?
e.g (import '(java.naming.*))

Or will I have to import each class separately?

Thanks,
Yinka. 

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