public interface ShardingKeyBuilderA builder created from a
XADataSourceobject, used to create a
ShardingKeywith sub-keys of supported data types. Implementations must support JDBCType.VARCHAR and may also support additional data types.
The following example illustrates the use of
ShardingKeyBuilderto create a
DataSource ds = new MyDataSource(); ShardingKey shardingKey = ds.createShardingKeyBuilder() .subkey("abc", JDBCType.VARCHAR) .subkey(94002, JDBCType.INTEGER) .build();
ShardingKeyBuilder subkey(Object subkey, SQLType subkeyType)This method will be called to add a subkey into a Sharding Key object being built. The order in which subkey method is called is important as it indicates the order of placement of the subkey within the Sharding Key.
subkey- contains the object that needs to be part of shard sub key
subkeyType- sub-key data type of type java.sql.SQLType
- this builder object