获取PostDeleteEventListener上的主键

本文关键字：PostDeleteEventListener 获取 | 更新日期: 2023-09-27 18:20:22

如何在NHibernate的PostDeleteEventListener上获取实体的主键值？（同时考虑复合主键的情况）

不确定你是否尝试了什么但失败了。。。因为，传递的PostDeleteEvent对象是答案：

public void OnPostDelete(PostDeleteEvent @event)
{
    var id = @event.Id;
    var entity = @event.Entity;
    var state = @event.DeletedState;
    ...

如果您要查看父Event构造函数文档（PostDeleteEvent : AbstractPostDatabaseOperationEvent）:

/// <summary> Constructs an event containing the pertinent information. </summary>
/// <param name="source">The session from which the event originated. </param>
/// <param name="entity">The entity to be invloved in the database operation. </param>
/// <param name="id">The entity id to be invloved in the database operation. </param>
/// <param name="persister">The entity's persister. </param>
protected AbstractPostDatabaseOperationEvent(
   IEventSource source
 , object entity
 , object id
 , IEntityPersister persister)