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How to use create method of Drivers Package

Best Unobtainium_ruby code snippet using Drivers.create

JDBCMockObjectFactory.java

Source:JDBCMockObjectFactory.java

...7import java.util.Iterator;8import java.util.Set;9import com.mockrunner.base.NestedApplicationException;10/**11 * Used to create all types of JDBC mock objects. 12 * Maintains the necessary dependencies between the mock objects.13 * If you use the mock objects returned by this14 * factory in your tests you can be sure that they are all15 * up to date.16 * Please note, that this class removes all drivers17 * from the JDBC <code>DriverManager</code> and registers18 * the {@link MockDriver}. All drivers are preserved and19 * can be restored with {@link #restoreDrivers}.20 */21public class JDBCMockObjectFactory22{23    private MockDataSource dataSource;24    private MockDriver driver;25    private MockConnection connection;26    private Set preservedDrivers;27    28    /**29     * Creates a new set of mock objects.30     */31    public JDBCMockObjectFactory()32    {33        dataSource = createMockDataSource();34        driver = createMockDriver();35        connection = createMockConnection();36        preservedDrivers = new HashSet();37        setUpDependencies();38    }39    private void setUpDependencies()40    {41        dataSource.setupConnection(connection);42        driver.setupConnection(connection);43        registerMockDriver();44    }45    private void deregisterDrivers()46    {47        try48        {49            Enumeration drivers = DriverManager.getDrivers();50            while(drivers.hasMoreElements())51            {52                DriverManager.deregisterDriver((Driver)drivers.nextElement());53            }54        }55        catch(SQLException exc)56        {57            throw new NestedApplicationException(exc);58        }59    }60    61    private void deregisterMockDrivers()62    {63        try64        {65            Enumeration drivers = DriverManager.getDrivers();66            while(drivers.hasMoreElements())67            {68                Driver currentDriver = (Driver)drivers.nextElement();69                if(currentDriver instanceof MockDriver)70                {71                    DriverManager.deregisterDriver(currentDriver);72                }73            }74        }75        catch(SQLException exc)76        {77            throw new NestedApplicationException(exc);78        }79    }80    81    private void preserveDrivers()82    {83        Enumeration drivers = DriverManager.getDrivers();84        while(drivers.hasMoreElements())85        {86            Driver currentDriver = (Driver)drivers.nextElement();87            if(!(currentDriver instanceof MockDriver))88            {89                preservedDrivers.add(currentDriver);90            }91        }92    }93    94    /**95     * Removes all JDBC drivers from the <code>DriveManager</code> and96     * registers the mock driver. The removed drivers are preserved and97     * can be restored with {@link #restoreDrivers}.98     */99    public void registerMockDriver()100    {101        try102        {103            preserveDrivers();104            deregisterDrivers();105            DriverManager.registerDriver(driver);106        }107        catch(SQLException exc)108        {109            throw new NestedApplicationException(exc);110        }111    }112    113    /**114     * Since <code>JDBCMockObjectFactory</code> removes all the115     * drivers from the <code>DriveManager</code> (so the116     * {@link MockDriver} is guaranteed to be the only one)117     * you can use this method to restore the original drivers.118     * Automatically called by {@link com.mockrunner.base.BaseTestCase#tearDown}.119     */120    public void restoreDrivers()121    {122        deregisterMockDrivers();123        try124        {125            Iterator drivers = preservedDrivers.iterator();126            while(drivers.hasNext())127            {128                DriverManager.registerDriver((Driver)drivers.next());129            }130        }131        catch(SQLException exc)132        {133            throw new NestedApplicationException(exc);134        }135        preservedDrivers.clear();136    }137    138    /**139     * Creates the {@link com.mockrunner.mock.jdbc.MockConnection} using <code>new</code>.140     * This method can be overridden to return a subclass of {@link com.mockrunner.mock.jdbc.MockConnection}.141     * @return the {@link com.mockrunner.mock.jdbc.MockConnection}142     */143    public MockConnection createMockConnection()144    {145        return new MockConnection();146    }147    /**148     * Creates the {@link com.mockrunner.mock.jdbc.MockDriver} using <code>new</code>.149     * This method can be overridden to return a subclass of {@link com.mockrunner.mock.jdbc.MockDriver}.150     * @return the {@link com.mockrunner.mock.jdbc.MockDriver}151     */152    public MockDriver createMockDriver()153    {154        return new MockDriver();155    }156    /**157     * Creates the {@link com.mockrunner.mock.jdbc.MockDataSource} using <code>new</code>.158     * This method can be overridden to return a subclass of {@link com.mockrunner.mock.jdbc.MockDataSource}.159     * @return the {@link com.mockrunner.mock.jdbc.MockDataSource}160     */161    public MockDataSource createMockDataSource()162    {163        return new MockDataSource();164    }165    /**166     * Returns the {@link com.mockrunner.mock.jdbc.MockDataSource}.167     * @return the {@link com.mockrunner.mock.jdbc.MockDataSource}168     */169    public MockDataSource getMockDataSource()170    {171        return dataSource;172    }173    174    /**175     * Returns the {@link com.mockrunner.mock.jdbc.MockDriver}....

JDBCMockObjectFactoryTest.java

Source:JDBCMockObjectFactoryTest.java

...121    }122    123    public static class TestJDBCMockObjectFactory extends JDBCMockObjectFactory124    {125        public MockConnection createMockConnection()126        {127            return new MockConnection() {};128        }129        public MockDataSource createMockDataSource()130        {131            return new MockDataSource() {};132        }133        public MockDriver createMockDriver()134        {135            return new MockDriver() {};136        }137    }138}...

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