org.enhydra.jdbc.standard

Class StandardPooledConnection

java.lang.Object

org.enhydra.jdbc.standard.StandardPooledConnection

All Implemented Interfaces:

PooledConnection

Direct Known Subclasses:

InformixPooledConnection, StandardXAConnection, SybasePooledConnection

public class StandardPooledConnection
extends Object
implements PooledConnection

Provides an implementation of javax.sql.PooledConnection which is completely generic (i.e. it relies only on JDBC 1 functionality). This class maintains a physical database connection which is passed to each StandardXAConnectionHandle when it is created. It is the StandardXAConnectionHandle object which the application receives and which it perceives as the java.sql.Connection object. StandardXAConnectionHandle objects pass PreparedStatements back to the StandardPooledConnection so that they can be retained across StandardXAConnectionHandle instantiations.

Field Summary

Fields

Modifier and Type	Field and Description
Connection	con
StandardConnectionHandle	connectionHandle
protected StandardConnectionPoolDataSource	dataSource
Logger	log

Constructor Summary

Constructors

Constructor and Description
StandardPooledConnection(StandardConnectionPoolDataSource dataSource, String user, String password) Creates the physical database connection.

Method Summary

Modifier and Type	Method and Description
void	addConnectionEventListener(ConnectionEventListener listener)
void	addStatementEventListener(StatementEventListener listener)
void	close()
void	connectionErrorOccurred(ConnectionEvent event) Invoked when a fatal connection error occurs, just before an SQLException is thrown to the application This method is automatically called when a fatal error is detected on the base connection.
Connection	getConnection() Creates a new StandardConnectionHandle for use by an application.
Connection	getPhysicalConnection() Access method allowing access to the underlying physical connection.
protected void	newConnectionHandle()
void	removeConnectionEventListener(ConnectionEventListener listener)
void	removeStatementEventListener(StatementEventListener listener)
void	setLogger(Logger alog)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

dataSource

protected StandardConnectionPoolDataSource dataSource

con

public Connection con

connectionHandle

public StandardConnectionHandle connectionHandle

log

public Logger log

Constructor Detail

StandardPooledConnection

public StandardPooledConnection(StandardConnectionPoolDataSource dataSource,
                                String user,
                                String password)
                         throws SQLException

Creates the physical database connection.

Throws:

SQLException

Method Detail

getConnection

public Connection getConnection()
                         throws SQLException

Creates a new StandardConnectionHandle for use by an application. If there is already a StandardConnectionHandle in use then it is closed (i.e. the application has the connection withdrawn).

Specified by:

getConnection in interface PooledConnection

Throws:

SQLException

newConnectionHandle

protected void newConnectionHandle()

close

public void close()
           throws SQLException

Specified by:

close in interface PooledConnection

Throws:

SQLException

addConnectionEventListener

public void addConnectionEventListener(ConnectionEventListener listener)

Specified by:

addConnectionEventListener in interface PooledConnection

removeConnectionEventListener

public void removeConnectionEventListener(ConnectionEventListener listener)

Specified by:

removeConnectionEventListener in interface PooledConnection

connectionErrorOccurred

public void connectionErrorOccurred(ConnectionEvent event)

Invoked when a fatal connection error occurs, just before an SQLException is thrown to the application This method is automatically called when a fatal error is detected on the base connection. The base connection is the actual connection that backs the connection handle provided by the getConnection() method

getPhysicalConnection

public Connection getPhysicalConnection()

Access method allowing access to the underlying physical connection.

setLogger

public void setLogger(Logger alog)

toString

public String toString()

Overrides:

toString in class Object

addStatementEventListener

public void addStatementEventListener(StatementEventListener listener)

Specified by:

addStatementEventListener in interface PooledConnection

removeStatementEventListener

public void removeStatementEventListener(StatementEventListener listener)

Specified by:

removeStatementEventListener in interface PooledConnection