How to set the consistency level with a Mapper object?

[Carlos Scheidecker]

Hello,

I understand that you can set the consistency level if you use the Statement object.

But if I use the mapper as:

MappingManager manager = new MappingManager(session);

Mapper<Token> mapper = manager.mapper(Token.class);

mapper.save(token);

How can I set the consistency leve?

So if I have replication factor of 3, I just want consistency level of one so that the writes are always fast, the system will then replicate it asynchornously for me.

How can I do it with a MappingManager ?

Or do I have to set that when I connect to the cluster first or at the Session level?

Thanks,

C.

[Olivier Michallat]

Hi,

You have two options:

1) pass the writeConsistency and readConsistency parameters to the @Table annotation of your mapped class. They will be used for all the statements generated by this mapper.

2) use mapper.saveQuery to get back a Statement object, on which you can set the consistency level (and a number of other options) manually.

OLIVIER MICHALLAT

Drivers & Tools Engineer | olivier....@datastax.com

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[Carlos Scheidecker]

Thanks Olivier! The Table annotation is great. But I liked the second one as well as it can return the query so that you can custom fix it.