about a data driven system front end: 1. about succeeded requests: they do not want to see alerts about success 2. about the triggers:they want the btns in sight 3. about the color: I should use the already in set color configurations, like all with…

今天一同事问我这个问题:S/4HANA Fiori应用里的列表,一旦Scroll到底部就会自动向后台发起新的请求把更多的数据读取到前台显示. 以Product Master这个应用为例,我点击搜索之后,结果区域显示当前系统一共有140个product,但是只有前25个返回并显示在浏览器里. 这个分页效果是UI5 OData的参数实现的:$skip=0&top=25. 而总数140,是通过参数$inlinecount实现,其原理和ABAP Open SQL的SELECT COUNT(*)类似. 从…

原文地址:http://www.oracle.com/webfolder/technetwork/tutorials/obe/java/gc01/index.html Overview Purpose This tutorial covers the basics of how Garbage Collection works with the Hotspot JVM. Once you have learned how the garbage collector functions, lear…

source URL: http://www.infoq.com/articles/Java_Garbage_Collection_Distilled Name: Java Garbage Collection Distilled Author: Martin Thompson PostDate: 2013-06-17   翻译前言 作者还出了本关于Java性能tuning的书. 翻译这篇文章的目的是缓解上次在支付宝面试时仅回答出堆中有Young和Perm代这样的尴尬. 为自己的人生信条代言:W…

Did you ever wish you had more control over how your content is indexed and presented as search results? In SharePoint 2013, you have the option to add a callout from the content processing component to your own web service so you can manipulate the…

this blog from: https://github.com/LantaoYu/MARL-Papers Paper Collection of Multi-Agent Reinforcement Learning (MARL) This is a collection of research and review papers of multi-agent reinforcement learning (MARL). The sharing principle of these refe…

Creating Custom Layouts 创建自定义布局 Before you start building custom layouts, consider whether doing so is really necessary. The UICollectionViewFlowLayout class provides a significant amount of behavior that has already been optimized for efficiency and…

原文地址:https://engineering.linkedin.com/garbage-collection/garbage-collection-optimization-high-throughput-and-low-latency-java-applications High-performance applications form the backbone of the modern web. At LinkedIn, a number of internal high-throu…

1.Collection是所有集合的父类,在JDK1.5之后又加入了Iterable超级类(可以不用了解) 2.学习集合从Collection开始,所有集合都继承了他的方法 集合结构如图:…

一些关于集合内部算法可以查阅这篇文章<容器类总结>. (Abstract+) Collection 子类:List,Queue,Set 增: add(E):boolean addAll(Collection<? extends E>):boolean 删: remove(Object):boolean removeAll(Collection<?>):boolean retainAll(Collection<?>):boolean removeIf(Pred…