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EJB Deployment Descriptor Example

1. Introduction Deployment descriptor is the file which tells the EJB server that which classes make up the bean implementation, the home interface and the remote interface. it also indicates the behaviour of one EJB with other. The deployment descriptor is generally called as ejb-jar.xml and is in the directory META-INF of the client application. This is the main deployment ...

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Spring Boot and AngularJS Integration Tutorial

This tutorial helps you to build a simple spring boot application. Also, you might like to implement a simple UI such as an administrator tool or control panel to work with the backend. This is when I start learning about Angularjs to develop a simple UI for a monitoring project at work. I’ve found Spring boot and Angularjs very easy to work with, especially when ...

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C3p0 Connection Pooling Example

In the previous example, we understood the concept of connection pooling and how we can use it to improve the performance and throughput of the application. In that example, we demonstrated how we can implement connection pooling using the Apache DBCP. In this example, we shall be using the C3P0 connection library. 1. Project Set-Up Create a simple Maven Project ...

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Android ViewPager Example

One of the most popular views in Android is the ViewPager, a view that helps us slide from one “screen” to another like a “slideshow”. Android ViewPager view can be found in many cases, in tutorial or introductory screens, on tab views and galleries. We are going to create an AppCompatActivity, and we are going to add a ViewPager reference ...

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Git Diff Example

1. Introduction As we all know, Git has been a very popular source code management system for software development. It has been widely used among programmers. Compared with SVN (Apache Subversion) and CVS (Concurrent Version System), Git is more powerful for its distributed nature, fast operation and branch handling mechanism. Because of the efficient of Git, Github, which is the ...

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Jetty Servlet Example

In this example, we will show you how to make use of Jetty – Java HTTP Web Server and servlet container and run a sample servlet on this server. Jetty is an open source web server developed by Eclipse Foundation. As a part of this example we will create an eclipse project which will have our servlet code and to ...

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Vaadin Form Example

In this example I am going to show you how to make a Vaadin form. A form is a common HTML element to collect user input and send the data to a server, most of the time using the POST http method. 1. The tools Java JDK 8 Latest Eclipse Mars Vaadin 7.6.3 Tomcat Server 8 2. Introduction Vaadin goes ...

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JavaFX Combobox Example

Bipartite Graph

This is a JavaFX Combobox example. ComboBox is used to let a user select an item from a list of items. It is highly customizable. If you want to create a custom control that will allow users to select an item from a pop-up list, you need to inherit your control from the ComboBoxBase class.           ...

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JAXB Schema Validation Example

Bipartite Graph

In this example, we shall learn how to validate XML against schema using JAXB. Here, we are talking about validating XML against XSD. Validation in context here is the process of verifying that an XML document meets all the constraints expressed in the schema or XSD. JAXB provides functions for validation during unmarshalling but not during marshalling. Let’s understand this ...

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DBCP Connection Pooling Example

Bipartite Graph

We will be writing a series of examples demonstrating how to configure Connection Pooling in your Java Application using different libraries like DBCP, C3P0, HikariCP etc. In this example, we shall demonstrate how to achieve connection pooling using the Apache DBCP library. 1. Why use Connection Pooling? To present dynamic data to the users, an application typically connects to a ...

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