it.unibz.inf.ontop.protege.utils

Class JDBCConnectionManager

java.lang.Object

it.unibz.inf.ontop.protege.utils.JDBCConnectionManager

public class JDBCConnectionManager
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	JDBC_AUTOCOMMIT
static String	JDBC_FETCHSIZE
static String	JDBC_RESULTSETCONCUR
static String	JDBC_RESULTSETTYPE

Method Summary

Modifier and Type	Method and Description
void	closeConnection() Removes a connection object form the pool.
Connection	createConnection(OntopSQLCredentialSettings settings)
Connection	createConnection(String url, String username, String password) Constructs a new database connection object and retrieves it.
void	dispose() Removes all the connections in the connection pool.
Connection	getConnection(OntopSQLCredentialSettings settings)
Connection	getConnection(String url, String username, String password) Retrieves the connection object.
static JDBCConnectionManager	getJDBCConnectionManager() Returns a single connection manager.
boolean	isConnectionAlive() Checks whether the connection is still alive.

Methods inherited from class java.lang.Object

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

Field Detail

JDBC_AUTOCOMMIT

public static final String JDBC_AUTOCOMMIT

See Also:

Constant Field Values

JDBC_FETCHSIZE

public static final String JDBC_FETCHSIZE

See Also:

Constant Field Values

JDBC_RESULTSETTYPE

public static final String JDBC_RESULTSETTYPE

See Also:

Constant Field Values

JDBC_RESULTSETCONCUR

public static final String JDBC_RESULTSETCONCUR

See Also:

Constant Field Values

Method Detail

getJDBCConnectionManager

public static JDBCConnectionManager getJDBCConnectionManager()

Returns a single connection manager.

createConnection

public Connection createConnection(OntopSQLCredentialSettings settings)
                            throws SQLException

Throws:

SQLException

createConnection

public Connection createConnection(String url,
                                   String username,
                                   String password)
                            throws SQLException

Constructs a new database connection object and retrieves it.

Returns:

The connection object.

Throws:

SQLException

getConnection

public Connection getConnection(String url,
                                String username,
                                String password)
                         throws SQLException

Retrieves the connection object. If the connection doesnt exist or is dead, it will attempt to create a new connection.

Throws:

SQLException

closeConnection

public void closeConnection()
                     throws SQLException

Removes a connection object form the pool. The system will put the connection back to the pool if an exception occurs.

Throws:

SQLException

isConnectionAlive

public boolean isConnectionAlive()
                          throws SQLException

Checks whether the connection is still alive.

Returns:

Returns true if the connection exists and is still open.

Throws:

SQLException

dispose

public void dispose()
             throws SQLException

Removes all the connections in the connection pool.

Throws:

SQLException

getConnection

public Connection getConnection(OntopSQLCredentialSettings settings)
                         throws SQLException

Throws:

SQLException