Interface ShardingKeyBuilder

public interface ShardingKeyBuilder

A builder created from a DataSource or XADataSource object, used to create a ShardingKey with 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 ShardingKeyBuilder to create a ShardingKey: 

DataSource ds = new MyDataSource();
     ShardingKey shardingKey = ds.createShardingKeyBuilder()
                           .subkey("abc", JDBCType.VARCHAR)
                           .subkey(94002, JDBCType.INTEGER)
                           .build();
Since:
9

Methods

Modifier and Type Method Description
ShardingKey build()

Returns an instance of the object defined by this builder.
ShardingKeyBuilder subkey​(Object subkey, SQLType subkeyType)

This method will be called to add a subkey into a Sharding Key object being built.

Methods

subkey

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.

Parameters:
subkey - contains the object that needs to be part of shard sub key
subkeyType - sub-key data type of type java.sql.SQLType
Returns:
this builder object

build

ShardingKey build()
           throws SQLException

Returns an instance of the object defined by this builder.

Returns:
The built object
Throws:
SQLException - If an error occurs building the object

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https://docs.oracle.com/en/java/javase/11/docs/api/java.sql/java/sql/ShardingKeyBuilder.html