How sharding works with stored procedures? (no replies)

Hi,
We are going to use MySQL Fabric with Connector/J. I'm wondering, is there a way to dispatch stored procedure invocation on particular shard, based on sharding key (passed as procedure argument or somehow separately)?
For example we have a table, sharded between 3 nodes using HASH sharding strategy. All rows with key A are stored on node 1. I'd like to be sure that when I run procedure(A), it applies on node1.