Package weka.gui.sql.event

Class ConnectionEvent

java.lang.Object

java.util.EventObject

weka.gui.sql.event.ConnectionEvent

All Implemented Interfaces:

Serializable

public class ConnectionEvent
extends EventObject

An event that is generated when a connection is established or dropped.

Version:

$Revision: 8034 $

Author:

FracPete (fracpete at waikato dot ac dot nz)

See Also:

• ConnectionListener
• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final int	CONNECT	it was a connect try
static final int	DISCONNECT	it was a disconnect

Constructor Summary

Constructors

Constructor	Description
ConnectionEvent(Object source, int type, DbUtils utils)	constructs the event
ConnectionEvent(Object source, int type, DbUtils utils, Exception ex)	constructs the event

Method Summary

Modifier and Type	Method	Description
boolean	failed()	whether an exception happened and is stored
DbUtils	getDbUtils()	returns the DbUtils instance that is responsible for the connect/disconnect.
Exception	getException()	returns the stored exception, if any (can be NULL)
int	getType()	returns the type of this event, CONNECT or DISCONNECT
boolean	isConnected()	returns whether the connection is still open.
String	toString()	returns the event in a string representation

Methods inherited from class java.util.EventObject

getSource

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

CONNECT

public static final int CONNECT

it was a connect try

See Also:

• Constant Field Values

DISCONNECT

public static final int DISCONNECT

it was a disconnect

See Also:

• Constant Field Values

Constructor Details

ConnectionEvent

public ConnectionEvent(Object source,
 int type,
 DbUtils utils)

constructs the event

Parameters:

source - the source that generated this event

type - whether CONNECT or DISCONNECT happened

utils - the DatabaseUtils isntance responsible for the connection

ConnectionEvent

public ConnectionEvent(Object source,
 int type,
 DbUtils utils,
 Exception ex)

constructs the event

Parameters:

source - the source that generated this event

type - whether CONNECT or DISCONNECT happened

utils - the DatabaseUtils isntance responsible for the connection

ex - a possible exception, if not successful

Method Details

getType

public int getType()

returns the type of this event, CONNECT or DISCONNECT

Returns:

the type of this event

See Also:

• CONNECT
• DISCONNECT

failed

public boolean failed()

whether an exception happened and is stored

Returns:

whether an exception happened

isConnected

public boolean isConnected()

returns whether the connection is still open.

Returns:

whether the connection is still open

getException

public Exception getException()

returns the stored exception, if any (can be NULL)

getDbUtils

public DbUtils getDbUtils()

returns the DbUtils instance that is responsible for the connect/disconnect.

Returns:

the responsible DbUtils instance

toString

public String toString()

returns the event in a string representation

Overrides:

toString in class EventObject

Returns:

the event in a string representation