Real-Time Application with Websocket and Postgres

 On this post, I will discuss the problem about the problem I have often faced in my entire career. That is system integration. If you could imagine once you have to monitor data on database's table. Base on that change you need so show data in the page, etc. The solution for this situation, commonly most of what people will do is apply pooling. But pooling is not practical way to deal with this kind of situation. Read more

Widlfly Hiberate OGM (Object Grid Mapper) with MongoDB

In the real world of enterprise application, Relational Database Management System (RDBMS) is dominant product. There are several most widely used propeitry and opensource products, the most well known and popular propeitary products are Oracle Database, IBM DB2, Microsoft SQL Server and for the opensource products are MariaDB, PostgreSQL. The most important feature that push RDBMS to be top of the choice for database that deployed on any production application is ACID complied feature. ACID property asure data consistency, integrity and durability, but it also comes with obstacles. it is very hard to scale out the system that comply with ACID property once the data volume is grow. In some industry, ACID property is not mandatory such as IoT, BigData, AI, this is where NOSQL database comes in the picture. Recently, NOSQL database like MongoDB, CouchDB, Cassanda is becoming very popular among companies in the industry. Read more

Integrate Testing Java EE (JPA, EJB, CDI) with Arquillian

When it comes to JavaEE, the biggest obstacle is conducting test, especially for EJB. This makes EJB is drawback for most developers. In fact EJB offer several enterprise features for business logic implementation such as remote call, security, transaction, etc. So, it will be waste to give up those benefits. Fortunately, Java EE provides testing framework like Arquillian for conducting the test. In this post, we will demonstrate how to perform enterprise business component by using Arquillian . Read more