https://autofaccn.readthedocs.io/en/latest/best-practices/ Autofac is designed to track and dispose of resources for you. To ensure this happens, make sure that long-running applications are partitioned into units of work (requests or transactions) a…

Or, “Avoiding Memory Leaks in Managed Composition” Understanding lifetime can be pretty tough when you’re new to IoC. Even long-time users express vague fears and misgivings when it comes to this subject, and disconcerting issues – components not bei…

Recently I’ve found out that we can easily cause a memory leaks in our .net application by improper usage of the dependency injection container Autofac. The case of this problem concerns only components that implements IDisposable interface, so are m…

实现 Dispose 方法 MSDN 类型的 Dispose 方法应释放它拥有的所有资源.它还应该通过调用其父类型的 Dispose 方法释放其基类型拥有的所有资源.该父类型的 Dispose 方法应该释放它拥有的所有资源并同样也调用其父类型的 Dispose 方法,从而在整个基类型层次结构中传播此模式.若要确保始终正确地清理资源,Dispose 方法应该可以被多次调用而不引发任何异常. 要点 C++ 程序员不应该使用本主题.而应参见 Destructors and Finalizers in…

[Implementing a Dispose method] 1.实现System.IDsiposable.Dispose()方法.不能将此方法设置为virtual,子类不能override此方法.此方法的实现必须为如下代码. // Implement IDisposable. // Do not make this method virtual. // A derived class should not be able to override this method. public voi…

第一章.spark源码分析之RDD四种依赖关系 一.RDD四种依赖关系 RDD四种依赖关系,分别是 ShuffleDependency.PrunDependency.RangeDependency和OneToOneDependency四种依赖关系.如下图所示:org.apache.spark.Dependency有两个一级子类,分别是 ShuffleDependency 和 NarrowDependency.其中,NarrowDependency 是一个抽象类,它有三个实现类,分别是OneToO…

这篇主要配合数据使用 先说数据库 名字都很标准---------------------------------- ------------------------------------------------------------------ 贴代码 1.IScheduleTaskService-----------Task表的接口 /// <summary> /// Task service interface /// </summary> public partial i…

网站需要定时执行不同的任务,比如清理无效的数据.定时发送mail等,Nop的这个定时任务设计比较好,简单的说就是将所有任务相同的属性持久化,具体的执行通过继承接口来实现. 持久化对象:ScheduleTask ScheduleTask定义了Seconds,Type等属性,分别记录执行周期和任务类型. public class ScheduleTask:BaseEntity { public string Name { get; set; } /// <summary> /// Gets or…

NOP任务提供两种:手动执行(立即)和定时执行两种. 首先来说下手动任务执行过程,下图是NOP定时任务管理界面: 从上面可以看出,我们可以选择具体的任务来手动执行任务(立即执行),当点击[立即执行]按钮时会触发以下事件: 1.获取ScheduleTask对象(从数据库或缓存中) 2.创建Task对象,传入ScheduleTask对象作为构造参数,并为Task对象字段赋值 3.执行Task里的Execute()方法,该方法主要负责ITask实现类的创建,并执行Execute()方法,完成对任务的执…

Understanding Weak References Posted by enicholas on May 4, 2006 at 5:06 PM PDT Some time ago I was interviewing candidates for a Senior Java Engineer position. Among the many questions I asked was "What can you tell me about weak references?" I…