Enterprise Java

When learning how to write Java-based software, one of the first snags developers hit is how to connect their code with other software. This is usually where JSON comes in. While you might be a wizard with Java,  JSON is another animal. Regardless, this blog post explains all you need to get the job done. What is a Java Object?  ...

We are always looking to improve the performance of the Drools DMN open source engine. We have recently reviewed a DMN use-case where the actual input population of Input Data nodes varied to some degree; this highlighted a suboptimal behavior of the engine, which we improved in recent releases. I would like to share our findings! Benchmark development As we ...

Hello Friends, If writing good code is important,then it is equally important to write good Junit test cases which covers all the business logic.By writing Junit test cases which covers business logic thoroughly ,we actually make sure that individually each method of our code is working fine as per expectation and hence reduce the chances of getting bugs in the ...

It’s late in the office and you are stuck with this strange Jpa code with JoinColumns and cascades and you cannot find what goes wrong. You wish there is a way to view the queries printed and also the values.With a little tweaking to your Spring Boot application this is possible. With the help of lombock heres is our jpa ...

This is the second post of a series of updates on the Kogito initiative and our efforts to bring Drools to the cloud. In this post we delve into the details of rule units and show you why we are excited about them. An All-Encompassing Execution Model for Rules If you’ve been carefully scrutinising the Drools manual looking for new ...

The Kogito initiative is our pledge to bring our business automation suite to the cloud and the larger Kubernetes ecosystem. But what does this mean for our beloved rule engine, Drools? In this post we introduce modular rule bases using rule units: a feature that has been experimental for a while in Drools 7, but that will be instrumental for ...

When using CDI with asynchronous execution methods, such as a ManagedExecutorService, it’s traditionally not possible to access all of CDI’s scopes that were active in the originating thread. MicroProfile Context Propagation enables to define and pass thread execution contexts to completion stages where our code can access various CDI contexts despite being executed asynchronously. Additionally, Context Propagation allows to create ...

At the JCrete unconference, a few of us were brainstorming about the vision of Jakarta EE and especially the relationship with MicroProfile. I wanted to start that discussion in order to get everybody on the same page especially how the relationship between Jakarta EE and MicroProfile, and Jakarta’s innovation should look like. I believe that a lot of us agree ...

Consider a service class responsible for making a remote call and retrieving a detail: 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 ... public class CitiesService {     private final WebClient.Builder webClientBuilder;     private final String baseUrl;       public CitiesService(             WebClient.Builder webClientBuilder,             @Value("${cityservice.url}") String baseUrl) {         this.webClientBuilder = webClientBuilder;         this.baseUrl = baseUrl;     } ...