Introduction We are creating different applications based on different needs. But implementing common and similar structures over and over again, at least in some level. Authorization, Validation, Exception Handling, Logging,Localization, Database Co…
Articles & Tutorials Introduction & Step by Step With ASP.NET Core & Entity Framework Core. With ASP.NET MVC, Web API, EntityFramework & AngularJs. Advanced Developing a Multi-Tenant (SaaS) Application with ASP.NET MVC, EntityFramework &am…
What Is Multi Tenancy? "Software Multitenancy refers to a software architecture in which a single instance of a software runs on a server and serves multiple tenants. A tenant is a group of users who share a common access with specific privileges to…
Introduction It's common to use the soft-deletepattern which is used to not delete an entity from database but only mark it as 'deleted'. So, if an entity is soft-deleted, it should not be accidently retrieved into the application. To provide that, w…
http://nosql-database.org Core NoSQL Systems: [Mostly originated out of a Web 2.0 need] Wide Column Store / Column Families Hadoop / HBase API: Java / any writer, Protocol: any write call, Query Method: MapReduce Java / any exec, Replication: HDFS Re…
link http://rabbitstack.github.io/deploying-cloud-foundry-on-openstack-juno-and-xenserver-part-i/ Cloud Foundry ecosystem had been blowing my mind for a long time, and I think it really has made an IT disruption letting us focus on applications as th…
The Best Hacking Tools Hacking Tools : List of security tools specifically aimed toward security professionals for testing and demonstrating security weaknesses. Passwords Cain & Abel Cain & Abel is a password recovery tool for Microsoft Opera…
1.Geo spatial search : 地理空间搜索,可以在搜索查询中指定的某一距离内查找所要的内容.也可以返回以当前为圆心,逐渐添加圆的半径.直到找到所匹配到的内容. 參考:http://www.forwardsearch.dk/en/ForwardSearch/InDepth/Geo-spatial%20search.aspx 2.Multi tenancy:多租户 (1)Multi-tenancy means that different customers can have dif…
转载自:https://blog.csdn.net/carolzhang8406/article/details/79455684 1. Phoenix定义 Phoenix最早是saleforce的一个开源项目,后来成为Apache基金的顶级项目. Phoenix是构建在HBase上的一个SQL层,能让我们用标准的JDBC APIs而不是HBase客户端APIs来创建表,插入数据和对HBase数据进行查询. put the SQL back in NoSQL Phoenix完全使用Java编写,…
前言 我以为 第一次接触 swift 语言时,看到函数的表示形式如下: func fun(num: Int) -> Int { return num + 1 } let f = fun(1) 和Objective-C对比一下: - (int)fun:(int)num { return num + 1; } int f = [self fun:1]; 我们很容易就认为 -> 和Objective-C里面的 - 一样嘛,一种修饰符而已,-> Int 和 - (int)就是一个东西嘛!只不过…
第一章.phoenix入门简介 1. Phoenix定义 Phoenix最早是saleforce的一个开源项目,后来成为Apache基金的顶级项目. Phoenix是构建在HBase上的一个SQL层,能让我们用标准的JDBC APIs而不是HBase客户端APIs来创建表,插入数据和对HBase数据进行查询. put the SQL back in NoSQL Phoenix完全使用Java编写,作为HBase内嵌的JDBC驱动.Phoenix查询引擎会将SQL查询转换为一个或多个HBase…