Hi Ian,
What is the data mapping should be between Cassandra and Sling resource. I
mean is a Sling Resource maps to a Cassandra Column ? Or Column Family ?
Because to get this Cassandra and Sling story correct we need to finalize
this.
For an example what we eventually returns is a Sling resource. Everything
that needs to fill in to create Sling resource should be stored in
Cassandra.
In a Sling resource,
- Path - direct sling resource path
- ResourceType - nt:cassandra
- ResourceSuperType - ?
- ResourceMetadata - we can create this on the fly with the data from
the corresponding column. At insertion, those need to be stored. Following
are the ones which I thought might be useful by default to be set for any
node. Please add if we need anything more.
- ContentType
- ContentLength
- CreationTime
- ModificationTime
- ResourceResolver - Do we need a resolver in this case ?
So I believe in CQL context, one ROW should represent a Sling resource. If
that is the case for ResourceMetadata we might need a separate column to
store it since it has multiple values. I am not sure whether we can do it
with CQL, but it should be possible with hector APIs may be.
Appreciate your thoughts ?
On Wed, Jun 19, 2013 at 1:19 AM, Dishara Wijewardana <
ddwijeward...@gmail.com> wrote:
> Hi Ian,
> I am starting this thread to keep track on things related to the GSoC
> project related milestone status updates and related discussions.
> So the first task over view will be as follows as per GSoC proposal
> provided.
>
> 1. Implementing a CassandraResourceProvider to READ from Cassandra.
> Implementation Details [1]
>
>
>
> [1] : Implementation Details:
>
> 1.A) Write a CassanrdaResourceProviderUtil which is basically a
> cassendra client which will facilitate all cassandra related operations
> required by other modules (CassandraResourceProvider and
> CassandraResourceResolver).
>
> 1.B) Implementation of CassandraResourceProvider
>
> 1.C) Implementation of CassandraResourceResolver
>
> 1.D) Implementation of CassandraResource
>
>
> And I will start writing the CassanrdaResourceProviderUtil class which
> will do basic add and get using hector API. Please provide any feedback
> that will be useful to accomplish this task.
> So for this how does path mapping should be done. Because for example, the
> path of the cassendra node will not be same as the jcr node path. i.e
> provider will ask a node path /system/myapps/test/foo and where should we
> return it from Cassandra. Aren't we have to first consider the WRITE aspect
> to Cassandra ?
>
>
> --
> Thanks
> /Dishara
>
--
Thanks
/Dishara
