Thanks Mahesh. Answers to your questions are as follows:
Q: Can you please elaborate on what would filter type, value and operator
be? Is it something like filter_type:"Population", value:1Billion,
operator:"Less than"?
A: Yes, that is exactly what it means. I had specified an example in my
original question as well. E.g. Country IN ['China', 'India'], Region =
'Primary', Load > 40. Here the filter types (nodes) are: "Country",
"Region", "Load". Operators would be: "IN", "=", ">". Value would be:
['China', 'India'], Primary, 40.
My input criteria could be: {Country = 'India', Load = 70}. This should
match the example defined above (even though the Region filter is missing).
You had mentioned that I need to model filtering as a traversal. Could you
provide an example of this? Should I traverse the graph first, get all the
filters and then apply the criteria as queries?
Q: Can you give and example of this (how nested criteria should be modeled)
to help the community understand this better?
We could have a filter defined as: Type - "OS Version", Value - "10.3.4.5",
Operator - ">"
An input criteria of "10.4" should match the above and so should
"10.3.4.5.1"
I was thinking about defining this filter as four separate "nested" nodes
(and hence the question). 10 -> 3 -> 4 -> 5
Ranga
On Wednesday, January 27, 2016 at 12:52:05 AM UTC-8, Mahesh Lal wrote:
>
> Graphs do sound suited to your problem.
> Moe replies inline.
>
>
> On 26 January 2016 at 22:48, Ranga S <[email protected] <javascript:>>
> wrote:
>
>> Hi
>>
>> I was wondering if someone could help me with modeling rules data. Here
>> are the requirements for my use-case:
>>
>> - A node in the graph would represent a domain entity. Lets call it a
>> "Partition" type
>> - Multiple "filters/criterias" could be defined for a Partition
>> - Filter could be defined as another node type. For e.g.: "Country",
>> "Region", "Load"
>> - Queries would be of the form: Retrieve the list of partitions that
>> match an input criteria
>> - E.g.: Country IN ['China', 'India'], Region = 'Primary', Load >
>> 40
>>
>> Here is what I am struggling with:
>>
>> - Could a Graph DB used for my use-case?
>> - Defining thresholds/operators for each filter
>> - Each filter type could have a value and also an "operator"
>>
>> Can you please elaborate on what would filter type, value and operator be?
> Is it something like filter_type:"Population", value:1Billion,
> operator:"Less than"?
>
>>
>> - Dynamic query creation based on input criteria
>> - Should I retrieve all the nodes and based on their filters
>> create the appropriate queries?
>> - Or is there a way to create the queries based on the input
>> criteria and then retrieve the nodes that match that?
>>
>> Filtering can be modelled as a traversal and you can construct queries
> based on some input criteria to retrieve the nodes that you want.
>
>>
>> - How should nested criteria be modeled/evaluated?
>>
>> Can you give and example of this to help the community understand this
> better?
>
>> Thanks for your help.
>>
>>
>> Ranga
>>
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>
>
> -- Thanks and Regards
> Mahesh Lal
>
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