missingfaktor / gonbe

A terse reflection API for Java

gonbe

A terse reflection API for Java

gonbe is a simple wrapper for the java.lang.reflect package.

This project is similar to jOOR, but with the following key differences:

• ObjectMirror and ClassMirror are represented with separate types, whereas jOOR conflates the two (under a name Reflect).
• The get, set, and call methods on Mirror have their m-suffixed counterparts which wrap the output in Mirror. e.g. Mirror.on("hello").call("charAt", 0) returns 'h' whereas Mirror.on("hello").callM("charAt", 0) returns Mirror.on('h').
• The implementation makes extensive use of functionaljava, though that's irrelevant from the user point of view.

Example

// With java.lang.reflect:
PrivateObject privateObject = new PrivateObject("The Private Value");
Class<?>[] paramTypes = { int.class, String.class };
Object[] args = { 3, "Hello" };
Method privateStringMethod = PrivateObject.class.getDeclaredMethod("getPrivateString", paramTypes);
privateStringMethod.setAccessible(true);
String returnValue = (String) privateStringMethod.invoke(privateObject, args);

// With gonbe:
PrivateObject privateObject = new PrivateObject("The Private Value");
String returnValue = Mirror.on(privateObject).call("getPrivateString", 3, "hello");

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Weekly Digest (16 August, 2018 - 23 August, 2018)

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