Dynamically set keyspace for entityMappers, not @Table

[robin.van...@jdriven.com]

Hi,

I need to be able to get the keyspace-configuration from my configuration properties.

However, this is not possible due to the fact that I need to provide this statically to the @Table annotation.

I could bind the session to this keyspace, but this doesn't work if I have multiple tables in different keyspaces. Creating multiple session objects is not recommended in the manual:

Generally, the recommended approach is to use a single session with no keyspace, and prefix all your queries.

 I create a mapper with  new MappingManager(session).mapper(clazz)

This will automatically create a mapper +entityMapper  with the keyspace that is either from the session or from the Table annotation.

So, in order to comply to the recommendations, I should use the @Table.keyspace property. Unfortunately, it should be able to configure it dynamically trough properties, and not compile time.

Is there any workaround to make this more dynamic? i.e. not injecting the 'keyspace' through @Table. 

How should I make a 'feature request'? (am not able to log in on JIRA, and 'issues' is disabled on the repo)

Kind Regards,

Robin

[Kevin Gallardo]

Hi, 

Support for dynamic keyspace in the Mapper was just recently added in the driver. You would use it as following:

MappingManager manager = new MappingManager(session);

Mapper<UserT> mapper = manager.mapper(userClass, mapperKeyspace);

The ticket was JAVA-1229 and has been released in the Java driver for Apache Cassandra 3.4.0 and the DSE driver 1.5.0.

Hope that helps.

Thanks.

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[Robin van den Berg]

Thanks!

Exactly what I needed. Upgraded. 

Virusvrij. www.avg.com

On 31 January 2018 at 17:36, Kevin Gallardo <kevin.g...@datastax.com> wrote:

Hi, 

Support for dynamic keyspace in the Mapper was just recently added in the driver. You would use it as following:

MappingManager manager = new MappingManager(session);

Mapper<UserT> mapper = manager.mapper(userClass, mapperKeyspace);

The ticket was JAVA-1229 and has been released in the Java driver for Apache Cassandra 3.4.0 and the DSE driver 1.5.0.

Hope that helps.

Thanks.

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