org.springframework.jdbc.datasource
Class SimpleDriverDataSource

java.lang.Object
  extended by org.springframework.jdbc.datasource.AbstractDataSource
      extended by org.springframework.jdbc.datasource.AbstractDriverBasedDataSource
          extended by org.springframework.jdbc.datasource.SimpleDriverDataSource
All Implemented Interfaces:
java.sql.Wrapper, javax.sql.CommonDataSource, javax.sql.DataSource

public class SimpleDriverDataSource
extends AbstractDriverBasedDataSource

Simple implementation of the standard JDBC DataSource interface, configuring a plain old JDBC Driver 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.

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.

If you need a "real" connection pool outside of a J2EE container, consider Apache's Jakarta 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:
2.5.5
Author:
Juergen Hoeller
See Also:
DriverManagerDataSource

Field Summary
 
Fields inherited from class org.springframework.jdbc.datasource.AbstractDataSource
logger
 
Constructor Summary
SimpleDriverDataSource()
          Constructor for bean-style configuration.
SimpleDriverDataSource(java.sql.Driver driver, java.lang.String url)
          Create a new DriverManagerDataSource with the given standard Driver parameters.
SimpleDriverDataSource(java.sql.Driver driver, java.lang.String url, java.util.Properties conProps)
          Create a new DriverManagerDataSource with the given standard Driver parameters.
SimpleDriverDataSource(java.sql.Driver driver, java.lang.String url, java.lang.String username, java.lang.String password)
          Create a new DriverManagerDataSource with the given standard Driver parameters.
 
Method Summary
protected  java.sql.Connection getConnectionFromDriver(java.util.Properties props)
          Obtain a Connection using the given properties.
 java.sql.Driver getDriver()
          Return the JDBC Driver instance to use.
 void setDriver(java.sql.Driver driver)
          Specify the JDBC Driver instance to use.
 void setDriverClass(java.lang.Class driverClass)
          Specify the JDBC Driver implementation class to use.
 
Methods inherited from class org.springframework.jdbc.datasource.AbstractDriverBasedDataSource
getConnection, getConnection, getConnectionFromDriver, getConnectionProperties, getPassword, getUrl, getUsername, setConnectionProperties, setPassword, setUrl, setUsername
 
Methods inherited from class org.springframework.jdbc.datasource.AbstractDataSource
getLoginTimeout, getLogWriter, isWrapperFor, setLoginTimeout, setLogWriter, unwrap
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SimpleDriverDataSource

public SimpleDriverDataSource()
Constructor for bean-style configuration.


SimpleDriverDataSource

public SimpleDriverDataSource(java.sql.Driver driver,
                              java.lang.String url)
Create a new DriverManagerDataSource with the given standard Driver parameters.

Parameters:
driver - the JDBC Driver object
url - the JDBC URL to use for accessing the DriverManager
See Also:
Driver.connect(String, java.util.Properties)

SimpleDriverDataSource

public SimpleDriverDataSource(java.sql.Driver driver,
                              java.lang.String url,
                              java.lang.String username,
                              java.lang.String password)
Create a new DriverManagerDataSource with the given standard Driver parameters.

Parameters:
driver - the JDBC Driver object
url - the JDBC URL to use for accessing the DriverManager
username - the JDBC username to use for accessing the DriverManager
password - the JDBC password to use for accessing the DriverManager
See Also:
Driver.connect(String, java.util.Properties)

SimpleDriverDataSource

public SimpleDriverDataSource(java.sql.Driver driver,
                              java.lang.String url,
                              java.util.Properties conProps)
Create a new DriverManagerDataSource with the given standard Driver parameters.

Parameters:
driver - the JDBC Driver object
url - the JDBC URL to use for accessing the DriverManager
conProps - JDBC connection properties
See Also:
Driver.connect(String, java.util.Properties)
Method Detail

setDriverClass

public void setDriverClass(java.lang.Class driverClass)
Specify the JDBC Driver implementation class to use.

An instance of this Driver class will be created and held within the SimpleDriverDataSource.

See Also:
setDriver(java.sql.Driver)

setDriver

public void setDriver(java.sql.Driver driver)
Specify the JDBC Driver instance to use.

This allows for passing in a shared, possibly pre-configured Driver instance.

See Also:
setDriverClass(java.lang.Class)

getDriver

public java.sql.Driver getDriver()
Return the JDBC Driver instance to use.


getConnectionFromDriver

protected java.sql.Connection getConnectionFromDriver(java.util.Properties props)
                                               throws java.sql.SQLException
Description copied from class: AbstractDriverBasedDataSource
Obtain a Connection using the given properties.

Template method to be implemented by subclasses.

Specified by:
getConnectionFromDriver in class AbstractDriverBasedDataSource
Parameters:
props - the merged connection properties
Returns:
the obtained Connection
Throws:
java.sql.SQLException - in case of failure