1,ForcedExecutionResult 强制一个package或task执行的结果,共有四种值 None,Success,Failure,Completion,默认值是None,表示不强制返回值. 如果设置ForcedExecutionResult=Success,不管package执行过程中是否出现异常,package执行的结果都是Success. The default value of this property is None, which indicates that the
本文转自:http://msdn.microsoft.com/en-us/library/cc895212.aspx Introduction With the 2008 release, SQL Server Integration Services (SSIS) continues its advance in the enterprise data integration arena. Integration Services offers an entire architecture t
https://dzone.com/articles/composite-design-pattern-in-java-1 The composite pattern is meant to "compose objects into a tree structure to represent part-whole hierarchies. Composite lets clients treat individual objects and compositions of objects un
概念策略模式定义了一系列的算法,并将每一个算法封装起来,而且使它们还可以相互替换.策略模式让算法独立于使用它的客户而独立变化.(原文:The Strategy Pattern defines a family of algorithms,encapsulates each one,and makesthem interchangeable. Strategy lets the algorithm vary independently from clients that use it.)Conte
Contents Tutorial Hello, World Command-Line Arguments Finding Duplicate Lines A Web Server Loose Ends Program Structure Names Declarations Variables Assignments Type Declarations Packages and Files Scope Basic Data Types Integers Floating-Point Numbe
1.外观模式(Facade [fə'sɑd] n. 正面:表面:外观) 外观模式:可以理解为 中介模式(没错,就是在用户与系统之间,增加了一个类,而这个类就是外观类,所以这个模式就叫外观模式) 如下图: 在如下图: 2.代码实现,我们就以第二个图为例子 2.1.首先创建三个子系统类 创建Cpu类: package design.pattern.facade; public class Cpu { public void turnOn() { System.out.println("启动CPU&q