Download e-book for iPad: Scripting in Java: languages, frameworks, and patterns by Dejan Bosanac

By Dejan Bosanac

ISBN-10: 0321321936

ISBN-13: 9780321321930

Groovy and past: Leverage the Full strength of Scripting at the JavaTM Platform!

 

Using the JavaTM platform’s new scripting help, you could increase potency, streamline your improvement strategies, and remedy difficulties starting from prototyping to internet program programming. In Scripting in Java, Dejan Bosanac covers key points of scripting with Java, from the fascinating new Groovy scripting language to Java’s new Scripting and net Scripting APIs.

 

Bosanac starts through reviewing the function and price of scripting languages, after which systematically introduces today’s top scripting recommendations for the Java platform. He introduces Java scripting frameworks, identifies confirmed styles for integrating scripting into Java functions, and provides sensible recommendations for every thing from unit trying out to venture builds. He helps key suggestions with vast code examples that reveal scripting at paintings in real-world Java tasks. assurance includes

 

·        Why scripting languages supply excellent worth to Java programmers

·        Scripting languages that run contained in the JVM: BeanShell, JavaScript, and Python

·        Groovy intensive: set up, configuration, Java-like syntax, Java integration, protection, and more

·        Groovy extensions: gaining access to databases, operating with XML, and construction easy net functions and Swing-based UIs

·        Bean Scripting Framework: implementation, simple abstractions, and utilization examples

·        conventional and new styles for Java-based scripting

·        JSR 223 Scripting API: language bindings, discovery mechanisms, threading, pluggable namespaces, and extra

·        JSR 223 net Scripting Framework: scripting the new release of web pages inside of servlet containers

 

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Extra resources for Scripting in Java: languages, frameworks, and patterns

Sample text

CHAPTER 1 A Case for Scripting To end our discussion of this topic, I quote John K. Ousterhout, the creator of the Tcl scripting language. html), he wrote the following words: In deciding whether to use a scripting language or a system programming language for a particular task, consider the following questions: Is the application’s main task to connect together pre-existing components? Will the application manipulate a variety of different kinds of things? Does the application include a graphical user interface?

Many experts state you should not analyze performance without comparing it to measurements and goals. This leads to debate concerning whether to perform premature or prudent optimization. The latter approach assumes you have a flexible system, and only after you’ve conducted the performance tests and found the system bottlenecks should you optimize those parts of your code. Deciding whether scripting is suitable for some tasks in your development process must be driven by the same question. For instance, say you need to load a large amount of data from a file, and developing a system-programming solution to accomplish the task would take twice as long as developing a scripting approach.

Does the application do a lot of string manipulation? Will the application’s functions evolve rapidly over time? Does the application need to be extensible? “Yes” answers to these questions suggest that a scripting language will work well for the application. On the other hand, “yes” answers to the following questions suggest that an application is better suited to a system programming language: Does the application implement complex algorithms or data structures? , all the pixels in an image) so that execution speed is critical?

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Scripting in Java: languages, frameworks, and patterns by Dejan Bosanac


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