* This class only to show how you can handle an event that have been * raised in another class *** *这个类只能处理一个在其他类中抛出的事件. *被开除的员工的类的定义 CLASS FireEmployee DEFINITION. PUBLIC SECTION. * Method for handling the event LazyEmployee in the FactoryWorker * subclass...
在ABAP面向对象的程序中, 对象的识别和寻址是通过对象引用来实现的, 对象引用变量可以访问对象的属性(attributes)和方法(method). 语法简单介绍如下: abap中使用class /endclass语句进行类定义,且有声明部分和具体实现部分组成,类声明部分中包含类成员(具体包括类的属性,方法和事件等)的名称及说明,类的实现部分则包含...
其中实参必须在程序中放置在两个特定类型的内表中, 传递给方法, 其中参数表ptab可以参照类型组ABAP_PARMBID(行类型)和ABAP_PARMBIND_TAB(表类型)生成; 异常表etab 可以参照ABAP_EXCBIND(行类型)和ABAP_EXCBIND_TAB(表类型)生成.3, 简单例子代码简单的例子代码如下:...
SAP ABAP 面向对象 面向对象简化了软件设计,使其更易于理解、维护和重用。面向对象编程(OOP,Object Oriented Programming)代表了编写软件的一种不同的思维方式。面向对象编程的优点在于它的简单性。面向对象的表达能力使按时交付高质量的软件组件变得更容易。
Identical (identically-named) methods behave differently in different classes. In ABAP Objects, polymorphism is implemented by redefining methods duringinheritanceand by using constructs calledinterfaces. Uses of Object Orientation Below are some of the advantages of object-oriented programming: ...
The SQL implementation is very much like PL/SQL in Oracle. Development in SAP can now become more object-oriented with theintroduction of ABAP Objects. Another recent extension of the ABAP language is the use of HTML and XML, which are supported by the SAP Web Application server. It appears...
SAP has used OOP principles to support legacy software. SAP’s primary programming language isABAP(Advanced Business Application Programming). Arguably, ABAP was not specifically designed for OOP, butABAP Objectsmade it very clear that SAP developers value OOP concepts. ...
In this post, I would show you a more flexible design using ABAP Objects. This design is to decouple logic, criteria, data display as much as possible. Introduction As discussed in the previous postABAP Object Oriented Approach for Reports – Initial Design(which got very good response – 14...
SAP ABAP - 面向对象简述面向对象简化了软件设计,使其更易于理解、维护和重用。面向对象编程(OOP)代表了编写软件的一种不同的思维方式。OOP 的美妙之处在于它的简单性。OOP 的表现力使得按时交付高质量的软件组件变得更加容易。 由于解决方案是根据现实世界的对象进行设计的,因此程序员和业务分析师可以更轻松地交换...
ABAP Object是SAP R/3 4.0版本之后发布的概念,该概念有双层含义。一是指整个ABAP运行时的环境,另一方面代表ABAP语言中新增加的面向对象部分。 1. 运行时环境 用ABAP Objects表示ABAP运行时的环境,意味着SAP系统本身也逐步趋向以面向对象的方式实现,并将进一步“面向对象”化。引入面向对象后的ABAP Workbench由不同的...