1. Universal Connection Pool Developer's Guide
  2. Shared Pool for Sharded Databases
  3. UCP APIs for Middle-Tier Routing Support

11.5 UCP APIs for Middle-Tier Routing Support

The OracleShardRoutingCache Class

This class extends the internal shard routing cache of UCP and makes the basic routing cache feature available to the WebLogic Server or middle-tier routers or load balancers.

public class OracleShardRoutingCache extends ShardRoutingCache

This class provides the OracleShardRoutingCache(Properties dataSourceProps) and Set<ShardInfo> getShardInfoForKey(OracleShardingKey key, OracleShardingKey superKey) methods.

The ShardInfo Interface

The ShardInfo interface instances encapsulate unique shard name and priority. The unique shard name can then be mapped to a middle-tier server that connects to a specific shard.