Package io.micronaut.data.connection.jdbc.advice

Class DelegatingDataSource

java.lang.Object

io.micronaut.data.connection.jdbc.advice.DelegatingDataSource

All Implemented Interfaces:

Wrapper, CommonDataSource, DataSource

public class DelegatingDataSource
extends Object
implements DataSource

JDBC DataSource implementation that delegates all calls to a given target DataSource.

This class is meant to be subclassed, with subclasses overriding only those methods (such as getConnection()) that should not simply delegate to the target DataSource.

Since:

1.1

Author:

Juergen Hoeller, graemerocher

See Also:

• getConnection()

Constructor Summary

Constructors

Constructor	Description
DelegatingDataSource(@NonNull DataSource targetDataSource)	Create a new DelegatingDataSource.

Method Summary

Modifier and Type	Method	Description
Connection	getConnection()
Connection	getConnection(String username, String password)
int	getLoginTimeout()
PrintWriter	getLogWriter()
Logger	getParentLogger()
final @NonNull DataSource	getTargetDataSource()
boolean	isWrapperFor(Class<?> iface)
void	setLoginTimeout(int seconds)
void	setLogWriter(PrintWriter out)
<T> T	unwrap(Class<T> iface)
static @NonNull DataSource	unwrapDataSource(@NonNull DataSource dataSource)	Unwraps the data source obtaining the target.

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 Details

DelegatingDataSource

public DelegatingDataSource(@NonNull
 @NonNull DataSource targetDataSource)

Create a new DelegatingDataSource.

Parameters:

targetDataSource - the target DataSource

Method Details

getTargetDataSource

@NonNull
public final @NonNull DataSource getTargetDataSource()

Returns:

Return the target DataSource that this DataSource should delegate to.

getConnection

public Connection getConnection()
                         throws SQLException

Specified by:

getConnection in interface DataSource

Throws:

SQLException

getConnection

public Connection getConnection(String username,
 String password)
                         throws SQLException

Specified by:

getConnection in interface DataSource

Throws:

SQLException

getLogWriter

public PrintWriter getLogWriter()
                         throws SQLException

Specified by:

getLogWriter in interface CommonDataSource

Specified by:

getLogWriter in interface DataSource

Throws:

SQLException

setLogWriter

public void setLogWriter(PrintWriter out)
                  throws SQLException

Specified by:

setLogWriter in interface CommonDataSource

Specified by:

setLogWriter in interface DataSource

Throws:

SQLException

getLoginTimeout

public int getLoginTimeout()
                    throws SQLException

Specified by:

getLoginTimeout in interface CommonDataSource

Specified by:

getLoginTimeout in interface DataSource

Throws:

SQLException

setLoginTimeout

public void setLoginTimeout(int seconds)
                     throws SQLException

Specified by:

setLoginTimeout in interface CommonDataSource

Specified by:

setLoginTimeout in interface DataSource

Throws:

SQLException

unwrap

public <T> T unwrap(Class<T> iface)
             throws SQLException

Specified by:

unwrap in interface Wrapper

Throws:

SQLException

isWrapperFor

public boolean isWrapperFor(Class<?> iface)
                     throws SQLException

Specified by:

isWrapperFor in interface Wrapper

Throws:

SQLException

getParentLogger

public Logger getParentLogger()

Specified by:

getParentLogger in interface CommonDataSource

unwrapDataSource

@NonNull
public static @NonNull DataSource unwrapDataSource(@NonNull
 @NonNull DataSource dataSource)

Unwraps the data source obtaining the target.

Parameters:

dataSource - The data source

Returns:

The target