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## org.springframework.jdbc.datasource
Interface SmartDataSource

All Superinterfaces:
  CommonDataSource, DataSource, Wrapper

All Known Implementing Classes:
  SingleConnectionDataSource

    public interface SmartDataSource

extends DataSource

Extension of the `javax.sql.DataSource` interface, to be implemented by special DataSources that return JDBC Connections in an unwrapped fashion.

Classes using this interface can query whether or not the Connection should be closed after an operation. Spring's DataSourceUtils and JdbcTemplate classes automatically perform such a check.

Author:
  Rod Johnson, Juergen Hoeller
See Also:
  `SingleConnectionDataSource.shouldClose(java.sql.Connection)`, `DataSourceUtils.releaseConnection(java.sql.Connection, javax.sql.DataSource)`, `JdbcTemplate`

Method Summary
`boolean` | `shouldClose(Connection con)` Should we close this Connection, obtained from this DataSource?

Methods inherited from interface javax.sql.DataSource
`getConnection, getConnection`

Methods inherited from interface javax.sql.CommonDataSource
`getLoginTimeout, getLogWriter, setLoginTimeout, setLogWriter`

Methods inherited from interface java.sql.Wrapper
`isWrapperFor, unwrap`

Method Detail

### shouldClose

    boolean shouldClose(Connection con)

  Should we close this Connection, obtained from this DataSource?

  Code that uses Connections from a SmartDataSource should always perform a check via this method before invoking `close()`.

  Note that the JdbcTemplate class in the 'jdbc.core' package takes care of releasing JDBC Connections, freeing application code of this responsibility.

  Parameters:
    `con` - the Connection to check
  Returns:
    whether the given Connection should be closed
  See Also:
    `Connection.close()`

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