Java Language
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- Usage of Java objects in JavaScript in Nashorn
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Java Language Nashorn JavaScript engine
Introduction
Nashorn is a JavaScript engine developed in Java by Oracle, and has been released with Java 8. Nashorn allows embedding Javascript in Java applications via JSR-223 and allows to develop standalone Javascript applications, and it provides better runtime performance and better compliance with the ECMA normalized Javascript specification.
Syntax
- ScriptEngineManager // Provides a discovery and installation mechanism for ScriptEngine classes; uses a SPI (Service Provider Interface)
- ScriptEngineManager.ScriptEngineManager() // Recommended constructor
- ScriptEngine // Provides the interface to the scripting language
- ScriptEngine ScriptEngineManager.getEngineByName(String shortName) // Factory method for the given implementation
- Object ScriptEngine.eval(String script) // Executes the specified script
- Object ScriptEngine.eval(Reader reader) // Loads and then executes a script from the specified source
- ScriptContext ScriptEngine.getContext() // Returns the default bindings, readers and writers provider
- void ScriptContext.setWriter(Writer writer) // Sets the destination to send script output to
Remarks
Nashorn is a JavaScript engine written in Java and included in Java 8. Everything you need is bundled in the javax.script package.
Note that the ScriptEngineManager provides a generic API allowing you to obtain script engines for various scripting languages (i.e. not only Nashorn, not only JavaScript).
Nashorn JavaScript engine Related Examples
- Evaluate Arithmetic Strings
- Execute JavaScript file
- Hello Nashorn
- Implementing an interface from script
- Intercept script output
- Set and get global variables
- Set global variables
- Usage of Java objects in JavaScript in Nashorn
