com.metamatrix.common.connection.jdbc
Class JDBCMgdResourceConnection

java.lang.Object
  com.metamatrix.common.connection.ManagedConnection
      com.metamatrix.common.connection.jdbc.JDBCMgdResourceConnection

public class JDBCMgdResourceConnection
extends ManagedConnection

Nested Class Summary

Nested classes/interfaces inherited from class com.metamatrix.common.connection.ManagedConnection

ManagedConnection.ConnectionStatistics

Field Summary

Fields inherited from class com.metamatrix.common.connection.ManagedConnection

DATABASE, DRIVER, PASSWORD, PROTOCOL, USERNAME

Constructor Summary

JDBCMgdResourceConnection(java.util.Properties env, java.lang.String userName)
Create a new instance of a JDBC connection.

Method Summary

protected void	closeConnection() This method is invoked by the pool to notify the specialized class that the connection is to be terminated.
java.sql.Connection	getConnection() Create the JDBC connection that is being managed.
protected void	openConnection() This method is invoked by the pool to notify the specialized class that the connection is to be established.
protected void	performCommit() Make all changes made since the previous commit/rollback permanent, and release any data source locks currently held by the Connection.
protected void	performRollback() Make all changes made since the previous commit/rollback permanent, and release any data source locks currently held by the Connection.
protected void	prepareForRead() Prepare this connection for read-only transactions.
protected void	prepareForWrite() Prepare this connection for write transactions.

Methods inherited from class com.metamatrix.common.connection.ManagedConnection

close, commit, finalize, getEnvironment, getStats, getUserName, open, rollback, setForRead, setForWrite, setUserName

Methods inherited from class java.lang.Object

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

Constructor Detail

JDBCMgdResourceConnection

public JDBCMgdResourceConnection(java.util.Properties env,
                                 java.lang.String userName)

Create a new instance of a JDBC connection.

Parameters:

env - the environment properties for the new connection.

Method Detail

getConnection

public java.sql.Connection getConnection()

Create the JDBC connection that is being managed.

Returns:

the JDBC connection object.

openConnection

protected void openConnection()
                       throws ManagedConnectionException

This method is invoked by the pool to notify the specialized class that the connection is to be established.

Specified by:

openConnection in class ManagedConnection

Throws:

ManagedConnectionException - if there is an error establishing the connection.

closeConnection

protected void closeConnection()
                        throws ManagedConnectionException

This method is invoked by the pool to notify the specialized class that the connection is to be terminated.

Specified by:

closeConnection in class ManagedConnection

Throws:

ManagedConnectionException - if there is an error terminating the connection.

prepareForRead

protected void prepareForRead()
                       throws ManagedConnectionException

Prepare this connection for read-only transactions.

Specified by:

prepareForRead in class ManagedConnection

Throws:

ManagedConnectionException - if an error occurred within or during communication with this connection.

prepareForWrite

protected void prepareForWrite()
                        throws ManagedConnectionException

Prepare this connection for write transactions.

Specified by:

prepareForWrite in class ManagedConnection

Throws:

ManagedConnectionException - if an error occurred within or during communication with this connection.

performCommit

protected void performCommit()
                      throws ManagedConnectionException

Make all changes made since the previous commit/rollback permanent, and release any data source locks currently held by the Connection.

Specified by:

performCommit in class ManagedConnection

Throws:

ManagedConnectionException - if an error occurred within or during communication with this connection.

performRollback

protected void performRollback()
                        throws ManagedConnectionException

Make all changes made since the previous commit/rollback permanent, and release any data source locks currently held by the Connection.

Specified by:

performRollback in class ManagedConnection

Throws:

ManagedConnectionException - if an error occurred within or during communication with this connection.