FacesEvent (Java EE 5 SDK)

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Java EE 5 SDK

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摘要: 嵌套 | 字段 | 构造器 | 方法

详细信息: 字段 | 构造器 | 方法

javax.faces.event Class FacesEvent

java.lang.Object
  java.util.EventObject
      javax.faces.event.FacesEvent

所有已实现的接口:: Serializable

直接已知子类:: ActionEvent, ValueChangeEvent

public abstract class FacesEvent
extends EventObject

FacesEvent is the base class for user interface and application events that can be fired by UIComponents. Concrete event classes must subclass FacesEvent in order to be supported by the request processing lifecycle.

另请参见:: Serialized Form

字段摘要

Fields inherited from class java.util.EventObject
`source`

构造器摘要
`FacesEvent(UIComponent component)` Construct a new event object from the specified source component.

方法摘要
`UIComponent`	`getComponent()` Return the source `UIComponent` that sent this event.
`PhaseId`	`getPhaseId()` Return the identifier of the request processing phase during which this event should be delivered.
`abstract boolean`	`isAppropriateListener(FacesListener listener)` Return `true` if this `FacesListener` is an instance of a listener class that this event supports.
`abstract void`	`processListener(FacesListener listener)` Broadcast this `FacesEvent` to the specified `FacesListener`, by whatever mechanism is appropriate.
`void`	`queue()` Convenience method to queue this event for broadcast at the end of the current request processing lifecycle phase.
`void`	`setPhaseId(PhaseId phaseId)` Set the `PhaseId` during which this event will be delivered.

类方法继承 java.util.EventObject
`getSource, toString`

类方法继承 java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

构造器详细信息

FacesEvent

public FacesEvent(UIComponent component)

Construct a new event object from the specified source component.

参数:: component - Source UIComponent for this event
抛出异常:: IllegalArgumentException - if component is null

方法详细信息

getComponent

public UIComponent getComponent()

Return the source UIComponent that sent this event.

getPhaseId

public PhaseId getPhaseId()

Return the identifier of the request processing phase during which this event should be delivered. Legal values are the singleton instances defined by the PhaseId class, including PhaseId.ANY_PHASE, which is the default value.

setPhaseId

public void setPhaseId(PhaseId phaseId)

Set the PhaseId during which this event will be delivered.

抛出异常:: IllegalArgumentException - phaseId is null.

queue

public void queue()

Convenience method to queue this event for broadcast at the end of the current request processing lifecycle phase.

抛出异常:: IllegalStateException - if the source component for this event is not a descendant of a UIViewRoot

isAppropriateListener

public abstract boolean isAppropriateListener(FacesListener listener)

Return true if this FacesListener is an instance of a listener class that this event supports. Typically, this will be accomplished by an "instanceof" check on the listener class.

参数:: listener - FacesListener to evaluate

processListener

public abstract void processListener(FacesListener listener)

Broadcast this FacesEvent to the specified FacesListener, by whatever mechanism is appropriate. Typically, this will be accomplished by calling an event processing method, and passing this FacesEvent as a paramter.

参数:: listener - FacesListener to send this FacesEvent to
抛出异常:: AbortProcessingException - Signal the JavaServer Faces implementation that no further processing on the current event should be performed

概述