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Rest using Jersey – Complete Tutorial with JAXB, Exception Handling and Client Program

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Recently I started working on a Restful web service project using Jersey API. There are some tutorials available online but I faced some issues with exception handling and I didn’t found anywhere complete project using JaxB and providing exception handling approach. So once I was able to create a Restful web service using Jersey API with exception handling and client ...

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Java 7: File Filtering using NIO.2 – Part 1

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NIO.2 is a new API for I/O operations included in the JDK since Java 7. With this new API, you can perform the same operations performed with java.io plus a lot of great functionalities such as: Accessing file metadata and watching for directory changes, among others. Obviously, the java.io package is not going to disappear because of backward compatibility, but ...

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Introduction To REST Concepts

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Introduction This post aims at demystifying the REST (Representational State Transfert) web design concepts. REST is based on a client server model. REST is a set of principles describing how standards can be used to develop web applications, for example. Its main purpose is to anticipate on common implementation issues and organize the relationship between logical clients and servers. You ...

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Java: The Checker Framework

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One of the interesting tools I learned about at JavaOne 2012 is The Checker Framework. One of the Checker Framework’s web pages states that the Checker Framework ‘enhances Java’s type system to make it more powerful and useful,’ allowing software developers ‘to detect and prevent errors in their Java programs.’ One way to look at the Checker Framework is as ...

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Quartz 2: Exploring different scheduling types

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We often think of Cron when we want to schedule a job. Cron is very flexible in expressing an repeating occurance of an event/job in a very compact expression. However it’s not answer for everything, as I often see people are asking for help in the Quartz user forum. Did you know that the popular Quartz 2 library provide many ...

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Batoo JPA – 15x Faster Than The Leading JPA Provider

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Introduction I loved the JPA 1.0 back in early 2000s. I started using it together with EJB 3.0 even before the stable releases. I loved it so much that I contributed bits and parts for JBoss 3.x implementations. Those were the days our company was considerably still small in size. Creating new features and applications were more priority than the ...

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Java to iOS Objective-C translation tool and runtime

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If you work on a mobile app and you’re planning on developing it on Android and iOS, it may be less work for you to write it on Android first. Google recently released a new tool that makes porting Java code to iOS much easier. The project (j2objc) can be found here. To give the program a quick test run, ...

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Design Best practices using Factory Method Pattern

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In the previous Design Pattern example we have explained about a flavor of Factory pattern which is commonly used nowadays. In this session we will understand a more advanced solution which had more abstraction. This pattern is called Factory Method design pattern. Definition: The Factory method pattern exposes a method for creating objects but delegates the object creation to the ...

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