Package jakarta.resource.spi

Class ConnectionEvent

java.lang.Object

java.util.EventObject

jakarta.resource.spi.ConnectionEvent

All Implemented Interfaces:

Serializable

public class ConnectionEvent
extends EventObject

The ConnectionEvent class provides information about the source of a connection related event.A ConnectionEvent instance contains the following information:

• Type of the connection event
• ManagedConnection instance that generated the connection event. A ManagedConnection instance is returned from the method ConnectionEvent.getSource.
• Connection handle associated with the ManagedConnection instance; required for the CONNECTION_CLOSED event and optional for the other event types.
• Optionally, an exception indicating the connection related error. Note that exception is used for CONNECTION_ERROR_OCCURRED.

This class defines following types of event notifications:

• CONNECTION_CLOSED
• LOCAL_TRANSACTION_STARTED
• LOCAL_TRANSACTION_COMMITTED
• LOCAL_TRANSACTION_ROLLEDBACK
• CONNECTION_ERROR_OCCURRED

Version:

0.5

Author:

Rahul Sharma

See Also:

• ConnectionEventListener
• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final int	CONNECTION_CLOSED	Event notification that an application component has closed the connection
static final int	CONNECTION_ERROR_OCCURRED	Event notification that an error occurred on the connection.
protected int	id	Type of the event
static final int	LOCAL_TRANSACTION_COMMITTED	Event notification that a Resource Manager Local Transaction was committed on the connection
static final int	LOCAL_TRANSACTION_ROLLEDBACK	Event notification that a Resource Manager Local Transaction was rolled back on the connection
static final int	LOCAL_TRANSACTION_STARTED	Event notification that a Resource Manager Local Transaction was started on the connection

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
ConnectionEvent(ManagedConnection source, int eid)	Construct a ConnectionEvent object.
ConnectionEvent(ManagedConnection source, int eid, Exception exception)	Construct a ConnectionEvent object.

Method Summary

Modifier and Type	Method	Description
Object	getConnectionHandle()	Get the connection handle associated with the Managed Connection instance.
Exception	getException()	Get the exception.
int	getId()	Get the type of event
void	setConnectionHandle(Object connectionHandle)	Set the connection handle.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Field Details

CONNECTION_CLOSED

public static final int CONNECTION_CLOSED

Event notification that an application component has closed the connection

See Also:

• Constant Field Values

LOCAL_TRANSACTION_STARTED

public static final int LOCAL_TRANSACTION_STARTED

Event notification that a Resource Manager Local Transaction was started on the connection

See Also:

• Constant Field Values

LOCAL_TRANSACTION_COMMITTED

public static final int LOCAL_TRANSACTION_COMMITTED

Event notification that a Resource Manager Local Transaction was committed on the connection

See Also:

• Constant Field Values

LOCAL_TRANSACTION_ROLLEDBACK

public static final int LOCAL_TRANSACTION_ROLLEDBACK

Event notification that a Resource Manager Local Transaction was rolled back on the connection

See Also:

• Constant Field Values

CONNECTION_ERROR_OCCURRED

public static final int CONNECTION_ERROR_OCCURRED

Event notification that an error occurred on the connection. This event indicates that the ManagedConnection instance is now invalid and unusable.

See Also:

• Constant Field Values

id

protected int id

Type of the event

Constructor Details

ConnectionEvent

public ConnectionEvent(ManagedConnection source,
 int eid)

Construct a ConnectionEvent object. Exception defaults to null.

Parameters:

source - ManagedConnection that is the source of the event

eid - type of the Connection event

ConnectionEvent

public ConnectionEvent(ManagedConnection source,
 int eid,
 Exception exception)

Construct a ConnectionEvent object.

Parameters:

source - ManagedConnection that is the source of the event

eid - type of the Connection event

exception - exception about to be thrown to the application

Method Details

getConnectionHandle

public Object getConnectionHandle()

Get the connection handle associated with the Managed Connection instance. Used for CONNECTION_CLOSED event.

Returns:

the connection handle. May be null

setConnectionHandle

public void setConnectionHandle(Object connectionHandle)

Set the connection handle. Used for CONNECTION_CLOSED event

Parameters:

connectionHandle - to set

getException

public Exception getException()

Get the exception. May be null.

Returns:

the exception about to be thrown.

getId

public int getId()

Get the type of event

Returns:

The type of the event