more and more
Guide to the Java Phaser 1. Overview In this article, we will be looking at the Phaser construct from the java.util.concurrent package. It is a very similar construct to the CountDownLatch that allows us to coordinate execution of threads. In comparison to the CountDownLatch, it has some additional functionality. The… Continue Reading java-phaser
getdocs
Java Web Weekly, Issue 141 At the very beginning of last year, I decided to track my reading habits and share the best stuff here, on Baeldung. Haven’t missed a review since. Here we go… 1. Spring and Java ===== >> The Ultimate Guide To Java 9 [codefx.org] A monster-post… Continue Reading java-web-weekly-141
getdocs
Multi-Dimensional Arrays In Java 1. Overview A multi-dimensional array in Java is an array comprising arrays of varying sizes as its elements. It’s also referred to as “an array of arrays” or “ragged array” or “jagged array”. In this quick tutorial, we’ll look more in-depth into defining and working with… Continue Reading java-jagged-arrays
getdocs
Spring Exceptions Tutorial The Spring Exceptions Tutorial discusses some of the most common exceptions in Spring with examples – why they occur and how to solve them quickly. Spring Beans Exceptions + Spring BeanDefinitionStoreException + Spring BeanCreationException + Spring NoSuchBeanDefinitionException (popular) + Unsatisfied Dependency in Spring Spring Data Exceptions +… Continue Reading spring-exceptions
getdocs
R2DBC – Reactive Relational Database Connectivity 1. Overview In this tutorial, we’ll show how we can use R2DBC to perform database operations in a reactive way. In order to explore R2DBC, we’ll create a simple Spring WebFlux REST application that implements CRUD operations for a single entity, using only asynchronous… Continue Reading r2dbc
getdocs
Java Concurrency Utility with JCTools 1. Overview In this tutorial, we’ll introduce the JCTools (Java Concurrency Tools) library. Simply put, this provides a number of utility data structures suitable for working in a multi-threaded environment. 2. Non-Blocking Algorithms Traditionally, multi-threaded code which works on a mutable shared state uses locks to ensure data… Continue Reading java-concurrency-jc-tools
getdocs
Embedded Jetty Server in Java 1. Overview In this article, we will be looking at the Jetty library. Jetty provides a web server that can run as an embedded container and integrates easily with the javax.servlet library. 2. Maven Dependencies To get started we’ll add Maven dependencies to jetty-server and… Continue Reading jetty-embedded
getdocs
Guice vs Spring – Dependency Injection 1. Introduction Google Guice and Spring are two robust frameworks used for dependency injection. Both frameworks cover all the notions of dependency injection, but each one has its own way of implementing them. In this tutorial, we’ll discuss how the Guice and Spring frameworks… Continue Reading guice-spring-dependency-injection
getdocs
Iterate Through a Range of Dates in Java 1. Overview In this quick tutorial, we’ll study several ways to iterate over a range of dates, using a start and end date, in Java 7, Java 8, and Java 9. 2. Java 7 Starting with Java 7, we’ll use the class… Continue Reading java-iterate-date-range
getdocs
Introduction to Spring Cloud OpenFeign 1. Overview In this tutorial, we’re going to describe Spring Cloud OpenFeign – a declarative REST client for Spring Boot apps. Feign makes writing web service clients easier with pluggable annotation support, which includes Feign annotations and JAX-RS annotations. Also, Spring Cloud adds support for Spring… Continue Reading spring-cloud-openfeign
getdocs