Hello readers, in this tutorial, we will understand the different Field Update Operators available in the Mongo database. Let’s study in brief the different ways in which these operators can be used. Table Of Contents 1. Introduction 1.1 What is MongoDB? 1.2 Why MongoDB? 2. MongoDB Field Update Operators Tutorial 2.1 $inc Operator 2.2 $rename Operator 2.3 $set Operator 2.4 ...

This example illustrates JBoss Drools Spreadsheet Example. Before proceeding with this article, we assume readers have a basic knowledge about how a Java n-tier application works. We also assume readers have good understanding of JBoss Drools. For more information on JBoss Drools please refer the article JBoss Drools Best Practices. 1. Introduction As we already know, Drools is a Rule Engine ...

1. Introduction Spring Integration provides gateways and adapters as a means to connect to external endpoints. In his blog, Josh Long explained the difference between adapters and gateways as: An adapter receives messages from an external messaging system (JMS, e-mail, SFTP, whatever) and “adapts” it to the messaging system (as a Spring Integration Message). Once a message comes in, via ...

Spring Data JPA and Querydsl enable developers to write type-safe queries. In this tutorial, we will build a Spring boot JPA application to demonstrate how to achieve it. Table Of Contents 1. Introduction 2. Technologies Used 3. Spring Boot JPA Maven Project 3.1 Dependency 3.2 Entity Classes 3.3 Generated Meta Model Classes 3.4 JpaRepositories 3.5 Services 3.6 Daos 3.7 Demo ...

Hello readers, aggregation in Mongo database is an operation that processes the multiple documents and returns a single computed result. In this tutorial, we will learn how to use the different aggregation operations in the Mongo database. 1. Introduction If you have installed the MongoDB application (version 3.6) on Windows or Ubuntu operating system and you wish to learn the ...

This article is a tutorial about Spring Batch with JMSItemReader. We will use Spring Boot to speed our development process. 1. Introduction Spring Batch is a lightweight, scale-able and comprehensive batch framework to handle data at massive scale. Spring Batch builds upon the spring framework to provide intuitive and easy configuration for executing batch applications. Spring Batch provides reusable functions ...

1. Introduction The Floating Action Button is a special type of button primarily used for functionalities such as morphing, launching, and the transferring anchor point. Further, this type of button is often found on the floating surface of a user interface. The primary difference between the Floating Action Button and the other types buttons is that the Floating Action Button, like the name, ...

Places where KeyListener is used in order to map key input to some action, it is more convenient and preferred from usimg Keymap or InputMap and ActionMap combination instead. Using Keymap or InputMap and ActionMap combination, it is easier to map the action to a specific key stroke and thus key binding is achieved. 1. Introduction Most of the manipulations performed on text ...

Hi Spring Boot fans. Today, we will follow how Nick added Spring Boot Security to his web application. We will see how Nick protects his resources by adding Spring Boot Security. Spring Security provides a wide-range of security services services for Java EE-based enterprise software applications. The two main areas of application security that Spring Security targets are “authentication and ...

Hello readers, in this tutorial, we will learn how to connect the Servlet with the Mongo database. For this tutorial, we’ll have a login form to validate the user’s login credentials in the Mongo database. Table Of Contents 1. Introduction 1.1 What is Servlet? 1.2 What is JSP? 1.3 What is MongoDB? 2. MongoDB and JSP/Servlet Example 2.1 Tools Used ...