WorkEvent (Java EE 5)

Java EE API

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javax.resource.spi.work Class WorkEvent

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

Extends: java.util.EventObject

此类模型在处理 Work 实例期间发生的各种事件。
version1.0
英文文档：

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

英文文档：

WORK_ACCEPTED 

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

See Also:
Constant Field Values

英文文档：

WORK_REJECTED 

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

See Also:
Constant Field Values

英文文档：

WORK_STARTED 

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

See Also:
Constant Field Values

英文文档：

WORK_COMPLETED 

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

See Also:
Constant Field Values

Constructor Detail

public WorkEvent(Object source, int type, Work work, WorkException exc)
构造方法。
source 最初发生事件的对象。
type 事件类型。
work 发生事件的 Work 对象。
exc 处理 Work 时发生的异常。
英文文档：

WorkEvent

public WorkEvent(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.

public WorkEvent(Object source, int type, Work work, WorkException exc, long startDuration)
构造方法。
source 最初发生事件的对象。
type 事件类型。
work 发生事件的 Work 对象。
exc 处理 Work 时发生的异常。
startDuration 开始延迟期限（以毫秒为单位）。
英文文档：

WorkEvent

public WorkEvent(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

public int getType()
返回此事件的类型。
return 事件类型。
英文文档：

getType

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

Returns:
the event type.

public Work getWork()
返回作为事件原因的 Work 实例。
return Work 实例。
英文文档：

getWork

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

Returns:
the Work instance.

public long getStartDuration()
返回开始时间间隔期限。
return 从接受 Work 开始直到开始执行 Work 所经过的时间（以毫秒为单位）。注意，此方法不提供实时保证。如果实际开始时间间隔期限未知，则返回 -1 是有效的。
英文文档：

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.

public WorkException getException()
返回 WorkException。根据事件类型返回的实际 WorkException 子类型。
return WorkRejectedException 或 WorkCompletedException（如果有）。
英文文档：

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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