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From Alexei Scherbakov <alexey.scherbak...@gmail.com>
Subject Re: Simulating Graph Dependencies With Ignite
Date Fri, 27 May 2016 15:38:40 GMT
Of course you can store result of recalculation in the temp variable if
it's needed for next recalculation.


2016-05-27 18:34 GMT+03:00 Alexei Scherbakov <alexey.scherbakoff@gmail.com>:

> Hi,
>
> You can store cell dependencies as Ignite's data grid of
>
> IgniteCache<Cell, Cell> cells = ...
>
> where relation between key and value is interpreted like: value depends on
> key.
>
> When the cell is updated you do the following:
>
> Cell cell = updated;
> do {
>      recalculate(cell);
> } while( (cell = cells.get(cell)) != null);
>
> Did it help ?
>
>
>
>
>
> 2016-05-27 16:49 GMT+03:00 pragmaticbigdata <amits.84@gmail.com>:
>
>> Hello,
>>
>> I have started exploring apache ignite by following the introductory
>> videos.
>> It looks quite promising and I wanted to understand if it will be well
>> suited for the use case I brief out below. If so, I would be glad to hear
>> out on how could I approach it
>>
>> The use case is
>>
>> We are trying to implement cell level dependencies within multiple tables.
>> It's similar to the functionality excel offers just that in our case it
>> could span across multiple tables. Imagine multiple cells in an excel
>> worksheet having interdependent formula's where updating a value in one
>> cell
>> causes another cell value to change and that cell update causes another
>> cell
>> value to update and so on and so forth. It is kind of graph of
>> dependencies
>> that determines what is the next row cell that needs to be updated.
>>
>> With apache ignite, what api's and data structures could I use to
>> maintain a
>> graph of inter-dependencies between multiple tables? Note that these would
>> be metadata dependencies and not data.
>>
>> I would appreciate to get inputs on this.
>>
>> Thanks,
>> Amit
>>
>>
>>
>> --
>> View this message in context:
>> http://apache-ignite-users.70518.x6.nabble.com/Simulating-Graph-Dependencies-With-Ignite-tp5282.html
>> Sent from the Apache Ignite Users mailing list archive at Nabble.com.
>>
>
>
>
> --
>
> Best regards,
> Alexei Scherbakov
>



-- 

Best regards,
Alexei Scherbakov

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