Package org.gcube.informationsystem.utils

Class BytecodeUtility

java.lang.Object

org.gcube.informationsystem.utils.BytecodeUtility

public class BytecodeUtility
extends Object

Reads facts from a class's own compiled bytecode that plain reflection cannot give a reliable answer to.

Author:

Luca Frosini (ISTI - CNR)

Method Summary

Modifier and Type	Method	Description
static List<String>	readDeclaredMethodOrder(Class<?> clz)	Returns the names of clz's own declared methods, in the order they appear in its compiled class file -- i.e. source declaration order, since javac preserves it in the method table.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

readDeclaredMethodOrder

public static List<String> readDeclaredMethodOrder(Class<?> clz)

Returns the names of clz's own declared methods, in the order they appear in its compiled class file -- i.e. source declaration order, since javac preserves it in the method table. Class.getDeclaredMethods() cannot be used for this: its Javadoc explicitly makes no ordering guarantee ("not sorted and not in any particular order"), and in practice it does not preserve declaration order either.

Parameters:

clz - The class to read.

Returns:

The declared method names in class-file order, or an empty list if the class's bytecode could not be read (e.g. no classloader resource for it) -- never null, so a caller can safely fall back to another ordering for any name this list turns out not to contain.