Class DriverManagerDataSource
- All Implemented Interfaces:
Wrapper,CommonDataSource,DataSource
- Direct Known Subclasses:
SingleConnectionDataSource
DataSource interface,
configuring the plain old JDBC DriverManager via bean properties, and
returning a new Connection from every getConnection call.
NOTE: This class is not an actual connection pool; it does not actually pool Connections. It just serves as simple replacement for a full-blown connection pool, implementing the same standard interface, but creating new Connections on every call.
Useful for test or standalone environments outside a Jakarta EE container, either
as a DataSource bean in a corresponding ApplicationContext or in conjunction with
a simple JNDI environment. Pool-assuming Connection.close() calls will
simply close the Connection, so any DataSource-aware persistence code should work.
NOTE: Within special class loading environments such as OSGi, this class
is effectively superseded by SimpleDriverDataSource due to general class
loading issues with the JDBC DriverManager that be resolved through direct Driver
usage (which is exactly what SimpleDriverDataSource does).
In a Jakarta EE container, it is recommended to use a JNDI DataSource provided by
the container. Such a DataSource can be exposed as a DataSource bean in a Spring
ApplicationContext via JndiObjectFactoryBean,
for seamless switching to and from a local DataSource bean like this class.
For tests, you can then either set up a mock JNDI environment through complete
solutions from third parties such as Simple-JNDI,
or switch the bean definition to a local DataSource (which is simpler and thus recommended).
This DriverManagerDataSource class was originally designed alongside
Apache Commons DBCP
and C3P0, featuring bean-style
BasicDataSource/ComboPooledDataSource classes with configuration
properties for local resource setups. For a modern JDBC connection pool, consider
HikariCP instead,
exposing a corresponding HikariDataSource instance to the application.
- Since:
- 14.03.2003
- Author:
- Juergen Hoeller
- See Also:
-
Field Summary
Fields inherited from class org.springframework.jdbc.datasource.AbstractDataSource
logger -
Constructor Summary
ConstructorsConstructorDescriptionConstructor for bean-style configuration.Create a new DriverManagerDataSource with the given JDBC URL, not specifying a username or password for JDBC access.DriverManagerDataSource(String url, String username, String password) Create a new DriverManagerDataSource with the given standard DriverManager parameters.DriverManagerDataSource(String url, Properties conProps) Create a new DriverManagerDataSource with the given JDBC URL, not specifying a username or password for JDBC access. -
Method Summary
Modifier and TypeMethodDescriptionprotected ConnectionObtain a Connection using the given properties.protected ConnectiongetConnectionFromDriverManager(String url, Properties props) Getting a Connection using the nasty static from DriverManager is extracted into a protected method to allow for easy unit testing.voidsetDriverClassName(String driverClassName) Set the JDBC driver class name.Methods inherited from class org.springframework.jdbc.datasource.AbstractDriverBasedDataSource
getCatalog, getConnection, getConnection, getConnectionFromDriver, getConnectionProperties, getPassword, getSchema, getUrl, getUsername, setCatalog, setConnectionProperties, setPassword, setSchema, setUrl, setUsernameMethods inherited from class org.springframework.jdbc.datasource.AbstractDataSource
getLoginTimeout, getLogWriter, getParentLogger, isWrapperFor, setLoginTimeout, setLogWriter, unwrapMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface javax.sql.CommonDataSource
createShardingKeyBuilderMethods inherited from interface javax.sql.DataSource
createConnectionBuilder
-
Constructor Details
-
DriverManagerDataSource
public DriverManagerDataSource()Constructor for bean-style configuration. -
DriverManagerDataSource
Create a new DriverManagerDataSource with the given JDBC URL, not specifying a username or password for JDBC access.- Parameters:
url- the JDBC URL to use for accessing the DriverManager- See Also:
-
DriverManagerDataSource
Create a new DriverManagerDataSource with the given standard DriverManager parameters.- Parameters:
url- the JDBC URL to use for accessing the DriverManagerusername- the JDBC username to use for accessing the DriverManagerpassword- the JDBC password to use for accessing the DriverManager- See Also:
-
DriverManagerDataSource
Create a new DriverManagerDataSource with the given JDBC URL, not specifying a username or password for JDBC access.- Parameters:
url- the JDBC URL to use for accessing the DriverManagerconProps- the JDBC connection properties- See Also:
-
-
Method Details
-
setDriverClassName
Set the JDBC driver class name. This driver will get initialized on startup, registering itself with the JDK's DriverManager.NOTE: DriverManagerDataSource is primarily intended for accessing pre-registered JDBC drivers. If you need to register a new driver, consider using
SimpleDriverDataSourceinstead. Alternatively, consider initializing the JDBC driver yourself before instantiating this DataSource. The "driverClassName" property is mainly preserved for backwards compatibility, as well as for migrating between Commons DBCP and this DataSource. -
getConnectionFromDriver
Description copied from class:AbstractDriverBasedDataSourceObtain a Connection using the given properties.Template method to be implemented by subclasses.
- Specified by:
getConnectionFromDriverin classAbstractDriverBasedDataSource- Parameters:
props- the merged connection properties- Returns:
- the obtained Connection
- Throws:
SQLException- in case of failure
-
getConnectionFromDriverManager
protected Connection getConnectionFromDriverManager(String url, Properties props) throws SQLException Getting a Connection using the nasty static from DriverManager is extracted into a protected method to allow for easy unit testing.- Throws:
SQLException- See Also:
-