Class DriverManagerDataSource
- java.lang.Object
- org.springframework.jdbc.datasource.AbstractDataSource
- org.springframework.jdbc.datasource.AbstractDriverBasedDataSource
- org.springframework.jdbc.datasource.DriverManagerDataSource
- All Implemented Interfaces:
Wrapper
,CommonDataSource
,DataSource
- Direct Known Subclasses:
SingleConnectionDataSource
public class DriverManagerDataSource extends AbstractDriverBasedDataSource
Simple implementation of the standard JDBCDataSource
interface, configuring the plain old JDBCDriverManager
via bean properties, and returning a newConnection
from everygetConnection
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 of a J2EE 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persistence code should work.NOTE: Within special class loading environments such as OSGi, this class is effectively superseded by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 J2EE 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 Spring'sSimpleNamingContextBuilder
, or switch the bean definition to a local DataSource (which is simpler and thus recommended).If you need a "real" connection pool outside of a J2EE container, consider Apache Commons DBCP or C3P0. Commons DBCP's BasicDataSource and C3P0's ComboPooledDataSource are full connection pool beans, supporting the same basic properties as this class plus specific settings (such as minimal/maximal pool size etc).
- Since:
- 14.03.2003
- Author:
- Juergen Hoeller
- See Also:
SimpleDriverDataSource
Field Summary
Fields inherited from class org.springframework.jdbc.datasource.AbstractDataSource
logger
Constructor Summary
Constructors Constructor Description DriverManagerDataSource()
Constructor for bean-style configuration.DriverManagerDataSource(String url)
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
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected Connection
getConnectionFromDriver(Properties props)
Obtain a Connection using the given properties.protected Connection
getConnectionFromDriverManager(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.void
setDriverClassName(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, setUsername
Methods inherited from class org.springframework.jdbc.datasource.AbstractDataSource
getLoginTimeout, getLogWriter, getParentLogger, isWrapperFor, setLoginTimeout, setLogWriter, unwrap
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface javax.sql.CommonDataSource
createShardingKeyBuilder
Methods inherited from interface javax.sql.DataSource
createConnectionBuilder
Constructor Detail
DriverManagerDataSource
public DriverManagerDataSource()
Constructor for bean-style configuration.
DriverManagerDataSource
public DriverManagerDataSource(String url)
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:
DriverManager.getConnection(String)
DriverManagerDataSource
public DriverManagerDataSource(String url, String username, String password)
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:
DriverManager.getConnection(String, String, String)
DriverManagerDataSource
public DriverManagerDataSource(String url, Properties conProps)
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
- JDBC connection properties- See Also:
DriverManager.getConnection(String)
Method Detail
setDriverClassName
public void setDriverClassName(String driverClassName)
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
SimpleDriverDataSource
instead. 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
protected Connection getConnectionFromDriver(Properties props) throws SQLException
Description copied from class:AbstractDriverBasedDataSource
Obtain a Connection using the given properties.Template method to be implemented by subclasses.
- Specified by:
getConnectionFromDriver
in 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.