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Java Enterprise Edition (EE)

WorkEvent


javax.resource.spi.work
Class WorkEvent

java.lang.Object
  java.util.EventObject
      javax.resource.spi.work.WorkEvent
All Implemented Interfaces:
java.io.Serializable
public class WorkEvent
extends java.util.EventObject

This class models the various events that occur during the processing of a Work instance.

Version:
1.0
Author:
Ram Jeyaraman
See Also:
Serialized Form

Field Summary
static int WORK_ACCEPTED
          Indicates Work instance has been accepted.
static int WORK_COMPLETED
          Indicates Work instance has completed execution.
static int WORK_REJECTED
          Indicates Work instance has been rejected.
static int WORK_STARTED
          Indicates Work instance has started execution.
 
Fields inherited from class java.util.EventObject
source
 
Constructor Summary
WorkEvent(java.lang.Object source, int type, Work work, WorkException exc)
          Constructor.
WorkEvent(java.lang.Object source, int type, Work work, WorkException exc, long startDuration)
          Constructor.
 
Method Summary
 WorkException getException()
          Return the WorkException.
 long getStartDuration()
          Return the start interval duration.
 int getType()
          Return the type of this event.
 Work getWork()
          Return the Work instance which is the cause of the event.
 
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 Detail

WORK_ACCEPTED

public static final int WORK_ACCEPTED
Indicates Work instance has been accepted.

See Also:
Constant Field Values

WORK_REJECTED

public static final int WORK_REJECTED
Indicates Work instance has been rejected.

See Also:
Constant Field Values

WORK_STARTED

public static final int WORK_STARTED
Indicates Work instance has started execution.

See Also:
Constant Field Values

WORK_COMPLETED

public static final int WORK_COMPLETED
Indicates Work instance has completed execution.

See Also:
Constant Field Values
Constructor Detail

WorkEvent

public WorkEvent(java.lang.Object source,
                 int type,
                 Work work,
                 WorkException exc)
Constructor.

Parameters:
source - The object on which the event initially occurred.
type - The event type.
work - The Work object on which the event occured.
exc - The exception that occured during Work processing.

WorkEvent

public WorkEvent(java.lang.Object source,
                 int type,
                 Work work,
                 WorkException exc,
                 long startDuration)
Constructor.

Parameters:
source - The object on which the event initially occurred.
type - The event type.
work - The Work object on which the event occured.
exc - The exception that occured during Work processing.
startDuration - The start delay duration (in milliseconds).
Method Detail

getType

public int getType()
Return the type of this event.

Returns:
the event type.

getWork

public Work getWork()
Return the Work instance which is the cause of the event.

Returns:
the Work instance.

getStartDuration

public long getStartDuration()
Return the start interval duration.

Returns:
the time elapsed (in milliseconds) since the Work was accepted, until the Work execution started. Note, this does not offer real-time guarantees. It is valid to return -1, if the actual start interval duration is unknown.

getException

public WorkException getException()
Return the WorkException. The actual WorkException subtype returned depends on the type of the event.

Returns:
a WorkRejectedException or a WorkCompletedException, if any.


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