Type Parameters:

T - the type of the resource concerned by this event.

All Superinterfaces:

Serializable

All Known Implementing Classes:

AbstractResourceEvent, AttachmentEvent, AttendeeLifeCycleEvent, CalendarEventLifeCycleEvent, CalendarEventOccurrenceLifeCycleEvent, CalendarLifeCycleEvent, CommentEvent, ComponentInstanceEvent, GroupEvent, GroupUserLinkEvent, NodeEvent, PublicationEvent, RelationShipEvent, ReplacementEvent, SpaceEvent, UserEvent, UserPreferenceEvent, WysiwygEvent
```
public interface ResourceEvent<T extends Serializable>
extends Serializable
```
A notification event on the change of the state of a given resource in Silverpeas. The resource can be either a contribution, a content, an organizational object or any bean managed or handled by Silverpeas.
This event is on a change of the state of a resource in Silverpeas. A such change can be a creation (the resource is spawn to life), an update, a removing, a deletion and so on. A change is then manifested by a transition between two states of the related resource. Hence, the event is characterized by a type that indicates the nature of the change occurring on the resource, and by the state transition of the resource implied by this change. This state transition carries an instance of the resource as it was before the change and an instance of the resource as it is actually.

Author:

mmoquillon

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class ResourceEvent.Type
It defines the more common type of notification in use in Silverpeas.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`StateTransition<T>`	`getTransition()`	Gets the state transition implying by a change on the resource.
`ResourceEvent.Type`	`getType()`	Gets the type of the event.
`default boolean`	`isOnCreation()`	Is the event on the creation of a resource.
`default boolean`	`isOnDeletion()`	Is the event on the deletion of a resource.
`default boolean`	`isOnRemoving()`	Is the event on the removing of a resource.
`default boolean`	`isOnUpdate()`	Is the event on the update of a resource.

- Method Detail
  - getType
```
ResourceEvent.Type getType()
```
    Gets the type of the event. The type of the event carries the cause: a creation, an update, a removing or a deletion of the related resource. It defines then the state in the life-cycle of the resource.
    
    Returns:
    
    the type of the event (creation, update, deletion, ...)
  - getTransition
```
StateTransition<T> getTransition()
```
    Gets the state transition implying by a change on the resource. The transition carries two instances of the resource: the resource before the change at the origin of this event, the the resource after the change has occurred. According to the type of the event, one of the state can be null or the two instances can be identical:
    
    for a creation, the instance before the transition is null whereas the instance after the transition is the created resource,
    
    for an update, the instance before the transition is the resource before the update whereas the instance after the transition is the resource after the update,
    
    for a removing, the two instances are identical (as the resource is existent and recoverable),
    
    for a deletion, the instance before the transition is the resource whereas the instance after the deletion is null.
    Returns:
    
    a state transition with two instances of the resource related by this event: one being the resource before the change, the second being the resource after the change.
  - isOnCreation
```
default boolean isOnCreation()
```
    Is the event on the creation of a resource.
    
    Returns:
    
    true if the event is about a resource creation. False otherwise.
  - isOnUpdate
```
default boolean isOnUpdate()
```
    Is the event on the update of a resource.
    
    Returns:
    
    true if the event is about a resource update. False otherwise.
  - isOnRemoving
```
default boolean isOnRemoving()
```
    Is the event on the removing of a resource.
    
    Returns:
    
    true if the event is about a resource removing. False otherwise.
  - isOnDeletion
```
default boolean isOnDeletion()
```
    Is the event on the deletion of a resource.
    
    Returns:
    
    true if the event is about a resource deletion. False otherwise.

Interface ResourceEvent<T extends Serializable>

Nested Class Summary

Method Summary

Method Detail

getType

getTransition

isOnCreation

isOnUpdate

isOnRemoving

isOnDeletion