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How to get JSON response from JSF?

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Many JavaScript widgets expect data and options in JSON format. Nowadays, it is really easy to choose a cool widget and wrap it in a composite component. But the first question is how to send an AJAX request and to recieve a response in a proper JSON format. This question is often raised by JSF users. All that you need ...

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Java Debuggers and Timeouts

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How to use your debugger in the presence of timeouts in your code. My kingdom for a debugger! So you’ve been coding away merrily on a project and everything is going well until a bug appears. You reach into your developer’s toolbox and pull out a debugger. It’s great – you can set breakpoints, you can interrupt when there’s an ...

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JavaFX Tip 8: Beauty Is Skin Deep

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If you are developing a UI framework for JavaFX, then please make it a habit to always split your custom controls into a control class and a skin class. Coming from Swing myself this was not obvious to me right away. Swing also uses an MVC concept and delegates the actual component rendering to a UI delegate, but people extending ...

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From framework to platform

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When I started my career as a Java developer close to 10 years ago, the industry is going through a revolutionary change. Spring framework, which was released in 2003, was quickly gaining ground and became a serious challenger to the bulky J2EE platform. Having gone through the transition time, I quickly found myself in favour of Spring framework instead of ...

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Spring, REST, Ajax and CORS

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Assuming you’re working on a project based on JavaScript for the client side and who makes ajax requests to a server through rest web services, you may encounter some troubles especially if both sides are on a separate domain. Indeed, for security reasons, ajax requests from one domain A to a different domain B are not authorized. Fortunately, the W3C ...

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Abstraction in Java – The ULTIMATE Tutorial (PDF Download)

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                      Table Of Contents 1. Introduction 2. Interfaces 2.1. Defining Interfaces 2.2. Implementing Interfaces 2.3. Using Interfaces 3. Abstract Classes 3.1. Defining Abstract Classes 3.2. Extending Abstract Classes 3.3. Using Abstract Classes 4. A Worked Example – Payments System 4.1. The Payee Interface 4.2. The Payment System 4.3. The Employee ...

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Jersey SSE capability in Glass Fish 4.0.1

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Glass Fish bundles different Reference Implementations for various Java EE specifications e.g. Weld for CDI, Mojarra for JSF, Tyrus for WebSocket, Jersey for JAX-RS. Glass Fish 4.0.1 is in the pipeline and slated to cover updates for many of the components/modules which both include new features and bug fixes of course. Server Sent Events feature in Jersey will be supported with Glass ...

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