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使用S/4HANA里的Smart Business消费通过CDS view暴露的OData服务

In my previous blog Build Chart and Table representation via Analytics Path Framework I introduced the step how to render the data coming from CDS view in various chart types via Analytics Path Framew ...
JerryWang_SAP 评论(0) 有615人浏览 2021-03-26 09:51

SAP Analytics Path Framework的filter实现原理分析

I am recently doing self study on Analytics Path Framework and as a beginner I have finished some “Hello world” exercise and I have written down my steps to finish those “Hello world” project in these ...
JerryWang_SAP 评论(0) 有511人浏览 2021-03-26 09:50

使用调试的方式搞清楚SAP UI5应用标题的更改方式

In Fiori launchpad, the page title will display default value “Home”. When I click a given tile to enter an UI5 application, the page title is changed for example from “Home” to “My Tasks”.     T ...
JerryWang_SAP 评论(0) 有509人浏览 2021-03-25 09:32

SAP UI5应用的调试标志位的本地存储逻辑 - local storage使用的一个例子

We know that once we enable debug mode via “Ctrl+Alt+Shift+P”, this setting will be persisted: even if you turn off your laptop and launch the application tomorrow, the debug mode will still be there. ...
JerryWang_SAP 评论(0) 有414人浏览 2021-03-24 09:31

SAP UI5框架Component.js里extend函数的实现原理

For every Fiori application we have Component.js, and there is a function extend() call. See one example below. What is the purpose of this function call and what functionality would it achieve?   ...
JerryWang_SAP 评论(0) 有353人浏览 2021-03-24 09:30

SAP UI5应用白屏的原因分析

Today I am working on another incident and I get to know another kind of reason which will lead to empty screen issue in UI. My previous experience for potential reason of empty screen issue is, there ...
JerryWang_SAP 评论(0) 有341人浏览 2021-03-23 09:18

SAP数据库表DDLOG的设计原理

Today when I am reading this SAP help, I find out this sentence:     Then I have opened the definition of table DDLOG in the system and found I cannot directly view the content of field NOTEBOOK ...
JerryWang_SAP 评论(0) 有414人浏览 2021-03-23 09:17

SAP UI5和Angular的事件处理机制比较

Jerry最开始是用SAP UI5进行SAP CRM Fiori应用的开发。最近一段时间做SAP Spartacus开发,在用Angular,因此借这个机会将两个前端框架的事件处理实现细节做一个比较。 SAP UI5事件处理 通过button控件的attachPress方法注册一个Press事件点击的处理函数:     button控件本身的实现是没有attachPress这个方法的 ...
JerryWang_SAP 评论(0) 有379人浏览 2021-03-22 09:47

SAP WebClient UI是如何维护表格选中状态的

I have been working as a Fiori application developer in SAP for almost two years, which means now I use Chrome development tool in my daily work for trouble shooting instead of ABAP debugger when I wa ...
JerryWang_SAP 评论(0) 有387人浏览 2021-03-22 09:46

一个占据SAP BSP应用占据存储空间的小工具

Today one of my colleague asks me whether there is some tool which can allow us to get a draft estimation on the size of a BSP application. As far as I know there is no such tool, so I write one by my ...
JerryWang_SAP 评论(0) 有406人浏览 2021-03-21 11:54

深入了解SAP note的技术细节

Although I have been working on ABAP for several years, I am not well aware of the technical design of SAP note, since most of the time as an application developer, I am responsible for the bug fixing ...
JerryWang_SAP 评论(0) 有407人浏览 2021-03-21 11:53

SAP offline OData插件的JavaScript代码是如何调用到Android平台的Java代码的

In previous blog How is OData request routed to Offline data store by OData offline plugin, according to comment, the Offline store will only be available once it is opened successfully. The open oper ...
JerryWang_SAP 评论(0) 有399人浏览 2021-03-19 10:14

SAP OData请求是如何通过OData Plugin路由到OData Offline Data Store的

I am reading Offline OData plugin introduction from SAP Help, There is one sentence “OData requests made against this plugin use the available open offline stores.“, and I am very curious about how th ...
JerryWang_SAP 评论(0) 有430人浏览 2021-03-19 10:13

面向切片编程(AOP)应用的一些实际例子

The definition of AOP in wikipedia seems a little bit difficult for beginners to understand, so in this blog I use an example to introduce why we need it. Suppose I have an order command class which ...
JerryWang_SAP 评论(0) 有643人浏览 2021-03-18 10:41

SAP OData offline store在Android平台的技术实现

I am studying Kapsel OData offline plugin recently. In SAP help the source code of OData.js is provided:     The source code clearly conveys the idea documented in SAP help: “When an offline stor ...
JerryWang_SAP 评论(0) 有380人浏览 2021-03-18 10:40

Java Volatile的一个实际应用场合

Consider the following example: package thread; public class ThreadVerify { public static boolean stop = false; public static void main(String args[]) throws InterruptedException { T ...
JerryWang_SAP 评论(0) 有363人浏览 2021-03-17 09:39

Spring框架里解析配置文件的准确位置

We can define bean configuration in xml and then can get instantiated bean instance with help of all kinds of containers for example ClassPathXmlApplicationContext as displayed below:     The con ...
JerryWang_SAP 评论(0) 有415人浏览 2021-03-17 09:38

Java注解@Autowired的工作原理

Suppose I have a bean named HelloWorld which has a member attribute points to another bean User.     With annotation @Autowired, as long as getBean is called in the runtime, the returned HelloWor ...
JerryWang_SAP 评论(0) 有682人浏览 2021-03-16 10:34

SAP CRM错误消息 Specify at least one number for the business partner

SAP CRM错误消息 Specify at least one number for the business partner Issue description When I try to edit Distribution Chain for a given product by clicking edit icon:     This is the data I input ...
JerryWang_SAP 评论(0) 有353人浏览 2021-03-15 10:06

SAP CL_CRM_BOL_ENTITY单元测试方法

In SAP standard development it is very important to use unit test to cover those changes on legacy code to try to avoid side effect. As type reference CL_CRM_BOL_ENTITY is widely used in UI component ...
JerryWang_SAP 评论(0) 有349人浏览 2021-03-15 10:05

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