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From Benjamin Black...@b3k.us>
Subject Re: Is anyone using version 0.7 schema update API
Date Mon, 12 Jul 2010 22:53:40 GMT
I guess I don't understand what is so complicated about the schema
management calls that numerous examples are needed.

On Mon, Jul 12, 2010 at 4:43 AM, GH <gavan.hood@gmail.com> wrote:
> Hi,
> My problem is that I cannot locate Java equivalents to the api calls you
> present in the ruby files you have presented. They are not visible in the
> java client packages I have (My code is not that old of trunk).
>
> I located the code below from some of the unit test code files.... This code
> will have to be refactored to create a test.
> This is all I could find and it seems that there must be better client
> examples than this.
>
> I expected to see client code in the  org.apache.cassandra.cli package but
> there was nothing there. (I searched all of the code for calls to these
> API's in the end)
> Where should I be looking to get proper Java code samples ?
> Regards
> Gavan
>
>
> Here is what I was about to refactor...
>
> TSocket socket = new
> TSocket(DatabaseDescriptor.getListenAddress().getHostName(),
> DatabaseDescriptor.getRpcPort());
>
> TTransport transport;
>
> transport = socket;
>
> TBinaryProtocol binaryProtocol = new TBinaryProtocol(transport, false,
> false);
>
> Cassandra.Client cassandraClient = new Cassandra.Client(binaryProtocol);
>
> transport.open();
>
> thriftClient = cassandraClient;
>
> Set<String> keyspaces = thriftClient.describe_keyspaces();
>
> if (!keyspaces.contains(KEYSPACE))
>
> {
>
> List<CfDef> cfDefs = new ArrayList<CfDef>();
>
> thriftClient.system_add_keyspace(new KsDef(KEYSPACE,
> "org.apache.cassandra.locator.RackUnawareStrategy", 1, cfDefs));
>
> }
>
> thriftClient.set_keyspace(KEYSPACE);
>
> CfDef cfDef = new CfDef(KEYSPACE, COLUMN_FAMILY);
>
> try
>
> {
>
> thriftClient.system_add_column_family(cfDef);
>
> }
>
> catch (InvalidRequestException e)
>
> {
>
> throw new RuntimeException(e);
>
> }
>
>
>
>
>
>
> On Mon, Jul 12, 2010 at 4:34 PM, Benjamin Black <b@b3k.us> wrote:
>>
>> http://github.com/fauna/cassandra/tree/master/lib/cassandra/0.7/
>>
>> Unclear to me what problems you are experiencing.
>>
>> On Sun, Jul 11, 2010 at 2:27 PM, GH <gavan.hood@gmail.com> wrote:
>> > Hi Dop,
>> >
>> > Do you have any code on dynamically creating KeySpace and ColumnFamily.
>> > Currently I was all but creating a new client to do that which seems to
>> > be
>> > the wrong way.
>> > If you have something that works that will put me on the right track I
>> > hope.
>> >
>> >
>> > Gavan
>> >
>> >
>> > On Mon, Jul 12, 2010 at 2:41 AM, Dop Sun <sunht@dopsun.com> wrote:
>> >>
>> >> Based on current source codes in the head, moving from 0.6.x to 0.7,
>> >> means
>> >> some code changes in the client side (other than server side changes,
>> >> like
>> >> storage_conf.xml).
>> >>
>> >>
>> >>
>> >> Something like:
>> >>
>> >> 1.       New Clock class instead of timestamp: this may be trivia,
but
>> >> it
>> >> takes some time to change
>> >>
>> >> 2.       Moving key space out of the API
>> >>
>> >> 3.       Key changed from string to byte
>> >>
>> >> 4.       Some API change, like get_count
>> >>
>> >>
>> >>
>> >> I’m still exploring the changes since I’m working on a Java client for
>> >> Cassandra. There should be longer list than what I have discovered.
>> >>
>> >>
>> >>
>> >> But, 0.7 is really good. I love the one can dynamically create Key
>> >> Space
>> >> and Column Family. Also, I love the key to be a byte array instead of
>> >> string.
>> >>
>> >>
>> >>
>> >> Enjoy the migrating. J
>> >>
>> >>
>> >>
>> >> Dop
>> >>
>> >>
>> >>
>> >> From: GH [mailto:gavan.hood@gmail.com]
>> >> Sent: Sunday, July 11, 2010 8:42 PM
>> >> To: user@cassandra.apache.org
>> >> Subject: Is anyone using version 0.7 schema update API
>> >>
>> >>
>> >>
>> >> I want to move on to 0.7 using this API rather than storage-conf.xml
>> >> conversion.
>> >>
>> >> Any info that you can advise on how you used it would be much
>> >> appreciated.
>> >>
>> >>
>> >>
>> >> Thanks
>> >>
>> >> Gavan
>> >
>
>

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