org.springframework.jdbc.datasource

## Class SimpleDriverDataSource

- java.lang.Object
- - org.springframework.jdbc.datasource.AbstractDataSource
  - - org.springframework.jdbc.datasource.AbstractDriverBasedDataSource
    - - org.springframework.jdbc.datasource.SimpleDriverDataSource

- All Implemented Interfaces:
    Wrapper, CommonDataSource, 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

    Constructors
    Constructor and Description
    `SimpleDriverDataSource()` Constructor for bean-style configuration.
    `SimpleDriverDataSource(Driver driver, String url)` Create a new DriverManagerDataSource with the given standard Driver parameters.
    `SimpleDriverDataSource(Driver driver, String url, Properties conProps)` Create a new DriverManagerDataSource with the given standard Driver parameters.
    `SimpleDriverDataSource(Driver driver, String url, String username, String password)` Create a new DriverManagerDataSource with the given standard Driver parameters.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected Connection` | `getConnectionFromDriver(Properties props)` Obtain a Connection using the given properties.
    `Driver` | `getDriver()` Return the JDBC Driver instance to use.
    `void` | `setDriver(Driver driver)` Specify the JDBC Driver instance to use.
    `void` | `setDriverClass(Class<? extends Driver> 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, getParentLogger, 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(Driver driver,
                                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(Driver driver,
                                String url,
                                String username,
                                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(Driver driver,
                                String url,
                                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(Class<? extends Driver> 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(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<? extends java.sql.Driver>)`

    - #### getDriver

          public Driver getDriver()

      Return the JDBC Driver instance to use.

    - #### 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 class `AbstractDriverBasedDataSource`
      Parameters:
        `props` - the merged connection properties
      Returns:
        the obtained Connection
      Throws:
        `SQLException` - in case of failure