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package javax.sql;

import java.sql.SQLException;
import java.sql.ShardingKey;

A builder created from a XADataSource object, used to establish a connection to the database that the data source object represents. The connection properties that were specified for the data source are used as the default values by the XAConnectionBuilder. 
The following example illustrates the use of XAConnectionBuilder to create a XAConnection: 

    XADataSource ds = new MyXADataSource();
    ShardingKey superShardingKey = ds.createShardingKeyBuilder()
                          .subkey("EASTERN_REGION", JDBCType.VARCHAR)
                          .build();
    ShardingKey shardingKey = ds.createShardingKeyBuilder()
                          .subkey("PITTSBURGH_BRANCH", JDBCType.VARCHAR)
                          .build();
    XAConnection con = ds.createXAConnectionBuilder()
                      .user("rafa")
                      .password("tennis")
                      .shardingKey(shardingKey)
                      .superShardingKey(superShardingKey)
                      .build();

Since:
9/**
 * A builder created from a {@code XADataSource} object,
 * used to establish a connection to the database that the
 * {@code data source} object represents.  The connection
 * properties that were specified for the {@code data source} are used as the
 * default values by the {@code XAConnectionBuilder}.
 * <p>The following example illustrates the use of {@code XAConnectionBuilder}
 * to create a {@link XAConnection}:
 *
 * <pre>{@code
 *     XADataSource ds = new MyXADataSource();
 *     ShardingKey superShardingKey = ds.createShardingKeyBuilder()
 *                           .subkey("EASTERN_REGION", JDBCType.VARCHAR)
 *                           .build();
 *     ShardingKey shardingKey = ds.createShardingKeyBuilder()
 *                           .subkey("PITTSBURGH_BRANCH", JDBCType.VARCHAR)
 *                           .build();
 *     XAConnection con = ds.createXAConnectionBuilder()
 *                       .user("rafa")
 *                       .password("tennis")
 *                       .shardingKey(shardingKey)
 *                       .superShardingKey(superShardingKey)
 *                       .build();
 * }</pre>
 *
 * @since 9
 *
 */
public interface XAConnectionBuilder  {

    
Specifies the username to be used when creating a connection
Params:
username – the database user on whose behalf the connection is being
made
Returns:
the same XAConnectionBuilder instance/**
     * Specifies the username to be used when creating a connection
     *
     * @param username the database user on whose behalf the connection is being
     * made
     * @return the same {@code XAConnectionBuilder} instance
     */
    XAConnectionBuilder user(String username);

    
Specifies the password to be used when creating a connection
Params:
password – the password to use for this connection. May be null
Returns:
the same XAConnectionBuilder instance/**
     * Specifies the password to be used when creating a connection
     *
     * @param password the password to use for this connection. May be {@code null}
     * @return the same {@code XAConnectionBuilder} instance
     */
    XAConnectionBuilder password(String password);

    
Specifies a shardingKey to be used when creating a connection 
Params:
shardingKey – the ShardingKey. May be null
See Also:
ShardingKey
ShardingKeyBuilder
Returns:
the same XAConnectionBuilder instance/**
     * Specifies a {@code shardingKey} to be used when creating a connection
     *
     * @param shardingKey the ShardingKey. May be {@code null}
     * @return the same {@code XAConnectionBuilder} instance
     * @see java.sql.ShardingKey
     * @see java.sql.ShardingKeyBuilder
     */
    XAConnectionBuilder shardingKey(ShardingKey shardingKey);

    
Specifies a superShardingKey to be used when creating a connection 
Params:
superShardingKey – the SuperShardingKey. May be null
See Also:
ShardingKey
ShardingKeyBuilder
Returns:
the same XAConnectionBuilder instance/**
     * Specifies a {@code superShardingKey} to be used when creating a connection
     *
     * @param superShardingKey the SuperShardingKey. May be {@code null}
     * @return the same {@code XAConnectionBuilder} instance
     * @see java.sql.ShardingKey
     * @see java.sql.ShardingKeyBuilder
     */
    XAConnectionBuilder superShardingKey(ShardingKey superShardingKey);

    
Returns an instance of the object defined by this builder.
Throws:
SQLException – If an error occurs building the object
Returns:
The built object/**
     * Returns an instance of the object defined by this builder.
     *
     * @return The built object
     * @throws java.sql.SQLException If an error occurs building the object
     */
    XAConnection build() throws SQLException;

}