```
public interface DataSourceAlert
```
Listener for notifications about the DataSource such as when the DataSource goes down, up or gets close to it's maximum size.
The intention is to send email notifications to an administrator (or similar) when these events occur on the DataSource.

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`dataSourceDown(DataSource dataSource, SQLException reason)`	Send an alert to say the dataSource is down.
`void`	`dataSourceUp(DataSource dataSource)`	Send an alert to say the dataSource is back up.
`void`	`dataSourceWarning(DataSource dataSource, String msg)`	Send an alert to say the dataSource is getting close to its max size.

dataSourceUp
```
void dataSourceUp(DataSource dataSource)
```
Send an alert to say the dataSource is back up.

void dataSourceDown(DataSource dataSource,
                    SQLException reason)

Send an alert to say the dataSource is down.

void dataSourceWarning(DataSource dataSource,
                       String msg)

Send an alert to say the dataSource is getting close to its max size.

Interface DataSourceAlert