Package org.datanucleus.store.rdbms.datasource.dbcp2

Class PoolingDataSource<C extends Connection>

java.lang.Object

org.datanucleus.store.rdbms.datasource.dbcp2.PoolingDataSource<C>

Type Parameters:

C - The connection type

All Implemented Interfaces:

AutoCloseable, Wrapper, CommonDataSource, DataSource

public class PoolingDataSource<C extends Connection>
extends Object
implements DataSource, AutoCloseable

A simple DataSource implementation that obtains Connections from the specified ObjectPool.

Since:

2.0

Constructor Summary

Constructors

Constructor	Description
PoolingDataSource(ObjectPool<C> pool)	Constructs a new instance backed by the given connection pool.

Method Summary

Modifier and Type	Method	Description
void	close()	Closes and free all Connections from the pool.
Connection	getConnection()	Returns a Connection from my pool, according to the contract specified by ObjectPool.borrowObject().
Connection	getConnection(String uname, String passwd)	Throws UnsupportedOperationException
int	getLoginTimeout()	Throws UnsupportedOperationException.
PrintWriter	getLogWriter()	Returns my log writer.
Logger	getParentLogger()
protected ObjectPool<C>	getPool()
boolean	isAccessToUnderlyingConnectionAllowed()	Returns the value of the accessToUnderlyingConnectionAllowed property.
boolean	isWrapperFor(Class<?> iface)
void	setAccessToUnderlyingConnectionAllowed(boolean allow)	Sets the value of the accessToUnderlyingConnectionAllowed property.
void	setLoginTimeout(int seconds)	Throws UnsupportedOperationException.
void	setLogWriter(PrintWriter out)	Sets my log writer.
<T> T	unwrap(Class<T> iface)

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 Detail

PoolingDataSource

public PoolingDataSource(ObjectPool<C> pool)

Constructs a new instance backed by the given connection pool.

Parameters:

pool - the given connection pool.

Method Detail

close

public void close()
           throws RuntimeException,
                  SQLException

Closes and free all Connections from the pool.

Specified by:

close in interface AutoCloseable

Throws:

RuntimeException

SQLException

Since:

2.1

isAccessToUnderlyingConnectionAllowed

public boolean isAccessToUnderlyingConnectionAllowed()

Returns the value of the accessToUnderlyingConnectionAllowed property.

Returns:

true if access to the underlying Connection is allowed, false otherwise.

setAccessToUnderlyingConnectionAllowed

public void setAccessToUnderlyingConnectionAllowed(boolean allow)

Sets the value of the accessToUnderlyingConnectionAllowed property. It controls if the PoolGuard allows access to the underlying connection. (Default: false)

Parameters:

allow - Access to the underlying connection is granted when true.

isWrapperFor

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

Specified by:

isWrapperFor in interface Wrapper

Throws:

SQLException

unwrap

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

Specified by:

unwrap in interface Wrapper

Throws:

SQLException

getParentLogger

public Logger getParentLogger()
                       throws SQLFeatureNotSupportedException

Specified by:

getParentLogger in interface CommonDataSource

Throws:

SQLFeatureNotSupportedException

getConnection

public Connection getConnection()
                         throws SQLException

Returns a Connection from my pool, according to the contract specified by ObjectPool.borrowObject().

Specified by:

getConnection in interface DataSource

Throws:

SQLException

getConnection

public Connection getConnection(String uname,
                                String passwd)
                         throws SQLException

Throws UnsupportedOperationException

Specified by:

getConnection in interface DataSource

Throws:

UnsupportedOperationException - always thrown

SQLException

getLogWriter

public PrintWriter getLogWriter()

Returns my log writer.

Specified by:

getLogWriter in interface CommonDataSource

Specified by:

getLogWriter in interface DataSource

Returns:

my log writer

See Also:

DataSource.getLogWriter()

getLoginTimeout

public int getLoginTimeout()

Throws UnsupportedOperationException.

Specified by:

getLoginTimeout in interface CommonDataSource

Specified by:

getLoginTimeout in interface DataSource

Throws:

UnsupportedOperationException - As this implementation does not support this feature.

setLoginTimeout

public void setLoginTimeout(int seconds)

Throws UnsupportedOperationException.

Specified by:

setLoginTimeout in interface CommonDataSource

Specified by:

setLoginTimeout in interface DataSource

Throws:

UnsupportedOperationException - As this implementation does not support this feature.

setLogWriter

public void setLogWriter(PrintWriter out)

Sets my log writer.

Specified by:

setLogWriter in interface CommonDataSource

Specified by:

setLogWriter in interface DataSource

See Also:

DataSource.setLogWriter(java.io.PrintWriter)

getPool

protected ObjectPool<C> getPool()