java-weekly-189

getdocs

6 years ago

Java Weekly, Issue 189

Here we go…

1. Spring and Java

===== >> Function-Oriented Programming with Spring Cloud Function Framework [infoq.com]

Spring Cloud Function is a new project that embraces working with functions – single units of computations. The interesting new addition here is the ability to decouple those from a particular vendor by introducing deployment-platform dependencies.

>> Parsing of LocalDate query parameters in Spring Boot [blog.codecentric.de]

Using LocalDates as query parameters is not always as easy to use as it could be in Spring – but we can always implement our own formatters.

>> Best Practices for Many-To-One and One-To-Many Association Mappings [thoughts-on-java.org]

A super useful list of distilled of practices to remember when working with Many-To-One and One-To-Many mappings in Hibernate.

>> flatMap() vs. concatMap() vs. concatMapEager() – RxJava FAQ [nurkiewicz.com]

>> flatMap() and the order of events – RxJava FAQ [nurkiewicz.com]

RxJava’s flatMap() is raising a lot of questions – some of them are answered here.

>> Code Smells: Null [blog.jetbrains.com]

The concept of Null is a commonly acknowledged problem, but there are certain practices that can help us to not deal with it directly.

>> How to store schema-less EAV (Entity-Attribute-Value) data using JSON and Hibernate [vladmihalcea.com]

A quick and practical example of storing EAV data using JSON and Hibernate.

>> Bean Validation 2.0 is a spec! [beanvalidation.org]

Cool – the new Bean Validation 2.0 specification is ready – you can check it out on the JSR’s page.

Also worth reading:

===== [.t-bg-white .l-pa2 .l-d-i]#https://blog.frankel.ch/strategies-optimizing-docker-maven-image/#gsc.tab=0[>> Strategies for optimizing Maven Docker images] #[[.t-bg-white .l-pa2 .l-d-i]#frankel.ch] #
===== >> Java Command-Line Interfaces (Part 10): picocli [marxsoftware.blogspot.com]
===== >> RxJava cheat sheet, with a pinch of Android [zeroturnaround.com]
===== >> JavaScript for People Who Hate JavaScript [zachholman.com]
===== >> There’s no place like production. SpringOne Platform will illuminate the path [spring.io]
===== >> The Modern Java Monitoring Stack: How to Reverse Engineer the Ideal Setup for Your Production Environment [blog.takipi.com]

Webinars and presentations:

===== >> Pattern Matching with Brian Goetz @BrianGoetz [youtube.com]
===== >> Polyglot on the JVM with Graal [infoq.com]
===== >> JVM Language Summit 2017 [youtube.com]
===== >> Consumer Driven Contracts and Your Microservice Architecture by Marcin Grzejszczak and Josh Long [youtube.com]

Time to upgrade:

===== >> Spring IO Platform Brussels-SR4 [spring.io]
===== >> Spring Cloud Pipelines 1.0.0.M6 Released [spring.io]
===== >> IntelliJ IDEA 2017.2.2 EAP is Out [jetbrains.com]
===== >> Spring Cloud Data Flow 1.3.0.M1 released [spring.io]
===== >> And here comes Hibernate Validator 6.0 Final with Bean Validation 2.0 support [in.relation.to]

2. Technical

===== >> Messaging as the Single Source of Truth [confluent.io]

A comprehensive guide to using Kafka as the Event Store in a system utilizing the Event Sourcing approach. Very nice.

Also worth reading:

===== >> Hibernate Tips: How to use a timestamp for versioning and optimistic locking [thoughts-on-java.org]
===== >> Hacker, Hack Thyself [blog.codinghorror.com]
===== >> The Rise of Test Impact Analysis [martinfowler.com]

3. Musings

===== >> In defence of pedantic tools [blog.codecentric.de]

Pedantry is often annoying but at the end of the day saves us from a lot of trouble ?

>> Application Network Functions With ESBs, API Management, and Now.. Service Mesh? [blog.christianposta.com]

An in-depth guide to different Microservice patterns.

>> Pulling Your Team Through a Project Crunch [daedtech.com]

Crunch time is hard for everyone, but surely there are ways to make it less painful than it actually is.