uk.co.strangeskies.reflection

Class Methods

java.lang.Object

uk.co.strangeskies.reflection.Methods

public final class Methods
extends java.lang.Object

A collection of general utility methods relating to methods in the Java type system.

Method Summary

Modifier and Type	Method and Description
static <N> java.lang.reflect.Method	findMethod(java.lang.Class<N> type, java.util.function.Consumer<? super N> methodLambda) Find a method on an interface type without needing to look it up by its string name.
static Visibility	getVisibility(java.lang.reflect.Method method) Determine the visibility of the method

Methods inherited from class java.lang.Object

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

Method Detail

findMethod

public static <N> java.lang.reflect.Method findMethod(java.lang.Class<N> type,
                                                      java.util.function.Consumer<? super N> methodLambda)

Find a method on an interface type without needing to look it up by its string name. This method will determine the last method which would be invoked on an instance of the given class by the given lambda.

For example to get a Method instance over the Comparable.compareTo(Object) method, invoke as Methods.findMethod(Comparable.class, c -> c.compareTo(null));. Or to get a reference to Supplier.get(), invoke as Methods.findMethod(Supplier.class, Supplier::get);.

Type Parameters:

N - the interface containing the method

Parameters:

type - the type of the class which declares the method

methodLambda - a consumer, typically given as a lambda or method reference, which invokes the requested method

Returns:

the last method which would be invoked by the given Consumer on an instance of the given type

getVisibility

public static Visibility getVisibility(java.lang.reflect.Method method)

Determine the visibility of the method

Parameters:

method - the method whose visibility we wish to determine

Returns:

a Visibility object describing the method