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Pagination and Sorting using Spring Data JPA 1. Overview Pagination is often helpful when we have a large dataset and we want to present it to the user in smaller chunks. Also, we often need to sort that data by some criteria while paging. In this tutorial, we’ll learn how… Continue Reading spring-data-jpa-pagination-sorting
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Top Spring Framework Interview Questions Table of Contents * 1. Introduction * 2. Spring Core * Q1. What Is Spring Framework? * Q2. What Are the Benefits of Using Spring? * Q3.What Spring Sub-Projects Do You Know? Describe Them Briefly. * Q4. What Is Dependency Injection? * Q5. How Can… Continue Reading spring-interview-questions
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Guide to ReflectionTestUtils for Unit Testing Spring Testing 1. Introduction ReflectionTestUtils is a part of Spring Test Context framework. It is a collection for reflection-based utility methods used in a unit, and integration testing scenarios to set the non-public fields, invoke non-public methods, and inject dependencies. In this tutorial, we’ll take… Continue Reading spring-reflection-test-utils
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Multiple Buckets and Spatial View Queries in Spring Data Couchbase 1. Introduction In this third tutorial on Spring Data Couchbase, we demonstrate the configuration required to support a Couchbase data model that spans multiple buckets, and we introduce the use of Spatial views for querying multi-dimensional data. 2. Data Model… Continue Reading spring-data-couchbase-buckets-and-spatial-view-queries
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Introduction to AWS Serverless Application Model 1. Overview In our previous article, we already implemented a full stack serverless application on AWS, using API Gateway for REST endpoints, AWS Lambda for business logic, as well as a DynamoDB as a database. However, the deployment consists of many manual steps, which… Continue Reading aws-serverless
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Bootstrap a Web Application with Spring 5 1. Overview The tutorial illustrates how to Bootstrap a Web Application with Spring. We’ll look into the Spring Boot solution for bootstrapping the application and also see a non-Spring Boot approach. We’ll primarily use Java configuration, but also have a look at their… Continue Reading bootstraping-a-web-application-with-spring-and-java-based-configuration
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A Guide to the Java ExecutorService 1. Overview ExecutorService is a framework provided by the JDK which simplifies the execution of tasks in asynchronous mode. Generally speaking, ExecutorService automatically provides a pool of threads and API for assigning tasks to it. Further reading: Guide to the Fork/Join Framework in Java… Continue Reading java-executor-service-tutorial
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Schedulers in RxJava 1. Overview In this article, we’re going to focus on different types of Schedulers that we’re going to use in writing multithreading programs based on RxJava Observable’s subscribeOn and observeOn methods. Schedulers give the opportunity to specify where and likely when to execute tasks related to the… Continue Reading rxjava-schedulers
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Java Weekly, Issue 192 Lots of interesting writeups on Java 9 this week. Here we go… 1. Spring and Java ===== >> How To Map The Date And Time API with JPA 2.2 [thoughts-on-java.org] Support for the new Date/Time API for Java finally comes along with the JPA 2.2. >>… Continue Reading java-weekly-192
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Working with Fragments in Thymeleaf 1. Overview In this tutorial, we’ll show how to make use of Thymeleaf Fragments to reuse some common parts of a site. After setting up a very simple Spring MVC project, we’ll focus on views. If you’re new to Thymeleaf, you can check other articles… Continue Reading spring-thymeleaf-fragments
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