org.wso2.carbon.ml.database.internal

Class MLDatabaseUtils

java.lang.Object

org.wso2.carbon.ml.database.internal.MLDatabaseUtils

public class MLDatabaseUtils
extends Object

This class contains utility methods for database resources.

Method Summary

Modifier and Type	Method and Description
static void	closeDatabaseResources(Connection connection) Close a given set of database resources.
static void	closeDatabaseResources(Connection connection, PreparedStatement preparedStatement) Close a given set of database resources.
static void	closeDatabaseResources(Connection connection, PreparedStatement preparedStatement, ResultSet resultSet) Close a given set of database resources.
static void	closeDatabaseResources(PreparedStatement preparedStatement) Close a given set of database resources.
static void	closeDatabaseResources(PreparedStatement preparedStatement, ResultSet resultSet) Close a given set of database resources.
static void	enableAutoCommit(Connection dbConnection) Enables the auto-commit of a connection.
static Map<String,String>	getHyperParamsAsAMap(List<org.wso2.carbon.ml.commons.domain.config.HyperParameter> hyperParams) Get the hyper parameters as a map
static void	rollBack(Connection dbConnection) Roll-backs a connection.
static String	toString(Clob clob) Get String from Clob

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

closeDatabaseResources

public static void closeDatabaseResources(Connection connection,
                                          PreparedStatement preparedStatement,
                                          ResultSet resultSet)
                                   throws DatabaseHandlerException

Close a given set of database resources.

Parameters:

connection - Connection to be closed

preparedStatement - PeparedStatement to be closed

resultSet - ResultSet to be closed

Throws:

DatabaseHandlerException

closeDatabaseResources

public static void closeDatabaseResources(Connection connection,
                                          PreparedStatement preparedStatement)
                                   throws DatabaseHandlerException

Close a given set of database resources.

Parameters:

connection - Connection to be closed

preparedStatement - PeparedStatement to be closed

Throws:

DatabaseHandlerException

closeDatabaseResources

public static void closeDatabaseResources(Connection connection)
                                   throws DatabaseHandlerException

Close a given set of database resources.

Parameters:

connection - Connection to be closed

Throws:

DatabaseHandlerException

closeDatabaseResources

public static void closeDatabaseResources(PreparedStatement preparedStatement)
                                   throws DatabaseHandlerException

Close a given set of database resources.

Parameters:

preparedStatement - PeparedStatement to be closed

Throws:

DatabaseHandlerException

closeDatabaseResources

public static void closeDatabaseResources(PreparedStatement preparedStatement,
                                          ResultSet resultSet)
                                   throws DatabaseHandlerException

Close a given set of database resources.

Parameters:

preparedStatement - Prepared statement to be closed

resultSet - Result set to be closed

Throws:

DatabaseHandlerException

rollBack

public static void rollBack(Connection dbConnection)
                     throws DatabaseHandlerException

Roll-backs a connection.

Parameters:

dbConnection - Connection to be rolled-back

Throws:

DatabaseHandlerException

enableAutoCommit

public static void enableAutoCommit(Connection dbConnection)

Enables the auto-commit of a connection.

Parameters:

dbConnection - Connection of which the auto-commit should be enabled

getHyperParamsAsAMap

public static Map<String,String> getHyperParamsAsAMap(List<org.wso2.carbon.ml.commons.domain.config.HyperParameter> hyperParams)

Get the hyper parameters as a map

Parameters:

hyperParams - A List of HyperParameter

Returns:

A map of pairs

toString

public static String toString(Clob clob)
                       throws DatabaseHandlerException

Get String from Clob

Parameters:

clob - Clob object

Returns:

String representation of clob

Throws:

DatabaseHandlerException