Play Framework Essentials


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Only the edit screen was subject of our project. The screen has two grids. The left one shows all available contacts and the right one all available educations for the selected contact.


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The detail form contains editors for all contact information with 4. Java Framework comparison Page 4 of 25 date editor, comboboxes and an image. It is possible to export all contacts as CSV file. Both grids support CRUD operations and inline editing. Of course, it could be a screen from a real-world ERP system. After the general project description, we tried to find the right frameworks for US. Java Framework comparison Page 5 of 25 JHipster was cool because it does create applications based on Spring Boot and AngularJS and it does create a real application frame.

GWT is included in Vaadin and we thought Vaadin is the better choice for us. Not every developer has the same development speed, so we tried to find a mix of different developers. The final team of developers was composed of some of our own and students. We were finally ready to start. Each developer had to do accurate time recording and documenting exactly what has been done.

It was important to know the tasks that took the most effort. After all tasks were finished for one technology, the developer gave a presentation and talked about pros, cons, problems and their personal opinion. The result It was awesome to see so many different frameworks in action and to get a presentation from different developers with different knowledge and different experience.

The demo project was used for experiments with the technology and as playground for testing different features. The second run was started five days after the first run and represents the result of an experienced developer it was the same developer as in the first run. Java Framework comparison Page 7 of 25 The big difference was that the developer could skip a demo project and working was overall faster because there was no need to search the Internet for help. Implementation overview To implement the screen, the developer had to use 19 source files. Only URLs were supported from the technology.

But after some hours it was easy to handle.

Developing Capacities for Teaching Responsible Science in the MENA Region: Refashioning Scientific

PrimeFaces has a lot of ready-to-use components with many features but this makes the handling and usage relatively complex because the html tag definition grows with every option. There are 8. Java Framework comparison Page 8 of 25 many showcases and examples for PrimeFaces. So the development time of one and a half day is a good result for our contact screen. But why? It has more built-in features, but lets see some implementation details. All files were created through JDeveloper Wizards. ADF has many utilities out-of-the-box. ADF also needs special handling for images.

A servlet was created that returns the contact image for an URL.

Playframework Routes – Part 2, Advanced Use Cases – Marius Soutier

By the way, the ADF handles everything and there was no need for manual database handling. It was tricky to configure dropdowns because there were 5 different places with configuration options but only one was right.


  1. Playframework Routes – Part 2, Advanced Use Cases;
  2. intellij idea - Play Framework tutorial: Cannot resolve symbol 'routes'!
  3. Play Framework;
  4. The documentation is available but mostly videos. I found similar things after long search. I prefer Java source code instead of configuration files. This might be because vaadin is component based and not like other web frameworks. The second run shows that 10 hours are a good time for the screen. Java Framework comparison Page 13 of 25 Implementation overview The solution has 14 source files and 7 are model classes. One file for every entity. All model files were created manually. And also Spring needs additional files for session handling SessionListener and for managing the spring context ContextConfiguration.

    Conclusion from the developer Vaadin feels simple and is easy to use. This was nice. I had to use Spring and Hibernate for accessing the database. The documentation, the book, of vaadin is great. Shannon -jj Behrens is a staff software engineer at Twitter, working in the Infrastructure and Operations department. He lives in Concord, California, with his lovely wife and seven lovely children. He's well known for his impeccable sense of modesty, world-renowned taste in T-shirts, and poor sense of humor.

    You might want to visit www. You can upgrade to the eBook version at www. Get in touch with us at for more details.

    Play Framework

    At www. Do you need instant solutions to your IT questions? PacktLib is Packt's online digital book library. Here, you can access, read and search across Packt's entire library of books. If you have an account with Packt at www. Simply use your login credentials for immediate access. The Web allows you to make applications that can be used from anywhere in the world as long as there is an Internet connection. The Play framework has been designed to embrace the characteristics of modern web applications such as handling long-running requests and manipulating data streams. This book shows you how to write such web applications using Play.

    I designed it to be progressive so that you can quickly write a running application and then enhance it to benefit from all the components of the Play stack, or from lower-level APIs if you need more control. Code examples are given in both Scala 2.

    Motivation

    Finally, I encourage you to browse the API documentation of the framework to complete the content of this book. Chapter 1, Building a Web Service , explains how to turn an application into a web service by exposing its resources and features as HTTP endpoints. Chapter 2, Persisting Data and Testing , shows how you can integrate a persistence system to your Play application and how to write specifications of your HTTP layer.

    Chapter 4, Integrating with Client-side Technologies , gives you insights on ways to manage the production of web assets from the build system of your Play application.

    Introduction to the Play Framework

    Chapter 5, Reactively Handling Long-running Requests , dives deeper in the framework internals and explains how to leverage its reactive programming model to manipulate data streams. Chapter 7, Scaling Your Codebase and Deploying Your Application , looks back at the code of your application and provides patterns to keep it modular and easy to maintain. It also explains how to deploy your application in a production environment.

    The content of this book is based on Play 2.


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    Chapter 1, Building a Web Service , explains how to install activator, a command-line tool to generate starter application skeletons and then manage their life cycle running, testing, and so on. Finally, you also need a web browser to use your applications. This book targets Java or Scala developers who already have some knowledge of web development. In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

    html - Making href (anchor tag) request POST instead of GET?

    When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:. New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: If everything works fine, your browser should show a page titled Just Play Scala or Just Play Java. Feedback from our readers is always welcome. Let us know what you think about this book—what you liked or may have disliked.

    Home Events. Fast Track to Play with Scala Course Learning Outcomes; Know how to build fully fledged web applications using Play Know best practices for developing web applications using Play Be confident to start using Scala and Play applications in production Production readiness — confidently deploy Scala and Play applications, today! Application Engineers. Web Developers. Course Curriculum 1. Forms, Testing and Asset Management 2.

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    Play Framework Essentials Play Framework Essentials
    Play Framework Essentials Play Framework Essentials
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