1. the right way to right that is to just say struct.name, struct.value, etc
2. why are you writing raw thrift instead of using Hector?
On Fri, Jun 17, 2011 at 5:03 AM, Vivek Mishra
<vivek.mis...@impetus.co.in> wrote:
>
>
>
>
> From: Vivek Mishra
> Sent: Friday, June 17, 2011 3:25 PM
> To: user@cassandra.apache.org
> Subject: getFieldValue()
>
>
>
> Hi,
>
> I was looking into getFieldValue method for SuperColumn and SlicePredicate
> apis.
>
>
>
> It looks to me slight confusing as underlying APIs are returning Object and
> developer can only be aware of type of object either by looking into
> Cassandra code base or by ClassCastException.
>
>
>
> For example,
>
>
>
> I need to retrieve column name and it’s value for a SuperColumnFamily
> “SuperCli” is:
>
>
>
>
>
> List<KeySlice> keySlices = cassndraClient.get_range_slices(new ColumnParent(
>
> "SuperCli"), slicePredicate, keyRange,
> ConsistencyLevel.ONE);
>
> System.out.println(keySlices.size()
>
> + " No. of rows exist for the column family:" +
> "SuperCli");
>
> for( KeySlice slice :keySlices)
>
> {
>
> city = "noida";
>
> System.out.println(new String((byte[])
> (slice.getColumns().get(0).getSuper_column().getFieldValue(org.apache.cassandra.thrift.SuperColumn._Fields.NAME))).toString());
>
> }
>
>
>
>
>
> Am I doing something wrong or such typecasting is must? Shouldn’t we hide
> this complexity and handle it implicitly in CASSANDRA? Or may be introducing
> a Helper Class can reduce such amount of code ?
>
>
>
>
>
>
>
> Is it possible to retrieve a specific SuperColumn by specifying it’s value
> in SliceRange query?
>
>
>
> I can’t see any method with such search API and I believe it is a real time
> scenario.
>
>
>
> SuperCli is a super column family holding number of dynamic super columns.
>
>
>
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