In RxJava we have a few operators for joining Observables. The most common are: concat merge zip Take a look at the documentation in these links. It has interactive marble diagrams showing how the operators work on the streams. You can move marbles along the lines and see how the output stream changes. It really helps to understand how it works. Code snippets in this article are based on RxJava 2....
Sometimes, we may need to emit different RxJava Observables depending on the specific condition dynamically. Moreover, it’s good to do it right without breaking a chain (stream of Observables). We want to combine different Observables together and do not want to nest one subscription inside another subscription because this will lead us to “subscription hell” similar to “callback hell”. Luckily RxJava has mechanisms to deal with such problems. In this article, I’m basing my examples on RxJava 2....
Introduction I’ve recently read a book about Test Driven Development by Kent Beck. It’s really good, presents the importance of the TDD and shows how to make a life of the software developer easier. In the TDD we follow red-green-refactor process in which we create a failing unit test, then we fix it and refactor it to make code-base better. There’s no golden rule when to refactor or how to refactor code and each project is different, but there are a few principles we may follow when we want to improve our projects through refactoring....
While developing open-source projects it’s important to monitor usage of them. Having that information we know on which projects we should concentrate the most and which are becoming more popular. In this short article, I’ll present you two tools, which can help you with that. GitHub On GitHub, each project has “Traffic” tab. After clicking on it, we can see how many visitors and unique visitors we have, we can also check how many project clones and unique clones were performed (including CI servers)....
Introduction The company, where I currently work - SAP Hybris is developing a project called YaaS, which is an abbreviation of Hybris as a Service. Unfortunately, this article is not sponsored yet :). What a pity :(. I just like to understand many things & how they work to see the bigger picture. Moreover, company strategy is to leverage YaaS and search for the new possibilities and use cases of this project....