This presentation introduces the key innovations that Play 2 brings to web application development in Java and Scala. The Play framework has brought high-productivity web development to Java with three innovations that changed the rules on Java EE: Java class and template save-and-reload that just works, a simplified stateless architecture that enables cloud deployment, and superior ease-of-use. Following Play's rapidly-growing popularity, Play 2.0 was released in March 2012 with innovations that are not just new in the Java world: type safe view templates and HTTP routing, compile-time checking for static resources, and native support for both Java and Scala. Type safety matters. After dynamically-typed programming languages such as PHP and Ruby set the standard for high-productivity web development, Play built on their advantages and has created a type safe web development framework with extensive compile-time checking. This is essential for applications that will scale to tens of thousands of lines of code, with hundreds of view templates. Meanwhile, Play avoids the architectural-complexity that is promoted by Java EE-based approaches. The result is that Play 2 first enables rapid initial application development and then Play 2 helps you build big, serious and scalable web applications.
Software developer, writer, speaker and musician - co-author of ‘Play for Scala’ - Product Developer at Signavio
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