Package org.h2.samples

Class ShowProgress

java.lang.Object

org.h2.samples.ShowProgress

All Implemented Interfaces:

EventListener, DatabaseEventListener

public class ShowProgress
extends Object
implements DatabaseEventListener

This example application implements a database event listener. This is useful to display progress information while opening a large database, or to log database exceptions.

Field Summary

Fields inherited from interface org.h2.api.DatabaseEventListener

STATE_BACKUP_FILE, STATE_CREATE_INDEX, STATE_RECONNECTED, STATE_RECOVER, STATE_SCAN_FILE, STATE_STATEMENT_END, STATE_STATEMENT_PROGRESS, STATE_STATEMENT_START

Constructor Summary

Constructors

Constructor	Description
ShowProgress()	Create a new instance of this class, and startNs the timer.

Method Summary

Modifier and Type	Method	Description
void	closingDatabase()	This method is called when the database is closed.
void	exceptionThrown(SQLException e, String sql)	This method is called if an exception occurs in the database.
void	init(String url)	This method is called just after creating the instance.
static void	main(String... args)	This method is called when executing this sample application from the command line.
void	opened()	This method is called when the database is open.
void	setProgress(int state, String name, long current, long max)	This method is called when opening the database to notify about the progress.

Methods inherited from class java.lang.Object

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

Constructor Details

ShowProgress

public ShowProgress()

Create a new instance of this class, and startNs the timer.

Method Details

main

public static void main(String... args)
                 throws Exception

This method is called when executing this sample application from the command line.

Parameters:

args - the command line parameters

Throws:

Exception - on failure

exceptionThrown

public void exceptionThrown(SQLException e,
 String sql)

This method is called if an exception occurs in the database.

Specified by:

exceptionThrown in interface DatabaseEventListener

Parameters:

e - the exception

sql - the SQL statement

setProgress

public void setProgress(int state,
 String name,
 long current,
 long max)

This method is called when opening the database to notify about the progress.

Specified by:

setProgress in interface DatabaseEventListener

Parameters:

state - the current state

name - the object name (depends on the state)

current - the current progress

max - the 100% mark

closingDatabase

public void closingDatabase()

This method is called when the database is closed.

Specified by:

closingDatabase in interface DatabaseEventListener

init

public void init(String url)

This method is called just after creating the instance.

Specified by:

init in interface DatabaseEventListener

Parameters:

url - the database URL

opened

public void opened()

This method is called when the database is open.

Specified by:

opened in interface DatabaseEventListener