net.lenni0451.reflect

Class Methods

java.lang.Object

net.lenni0451.reflect.Methods

public class Methods
extends java.lang.Object

This class contains some useful methods for working with methods.

Constructor Summary

Constructors

Constructor and Description
Methods()

Method Summary

Modifier and Type	Method and Description
static java.lang.reflect.Method	getDeclaredMethod(java.lang.Class<?> clazz, java.lang.String name, java.lang.Class<?>... parameterTypes) Get a declared method of a class by its name and parameter types.
static java.lang.reflect.Method[]	getDeclaredMethods(java.lang.Class<?> clazz) Get all declared methods of a class.
static <T> T	invoke(java.lang.Object instance, java.lang.reflect.Method method, java.lang.Object... args) Invoke a method without any checks.
static <I extends S,S,T> T	invokeSuper(I instance, java.lang.Class<S> superClass, java.lang.reflect.Method method, java.lang.Object... args) Invoke a super method without any checks.

Methods inherited from class java.lang.Object

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

Constructor Detail

Methods

public Methods()

Method Detail

getDeclaredMethods

public static java.lang.reflect.Method[] getDeclaredMethods(java.lang.Class<?> clazz)

Get all declared methods of a class.
The reflection filter of the class will be ignored.

Parameters:

clazz - The class to get the methods from

Returns:

An array of all declared methods of the class

Throws:

MethodNotFoundException - If the Class internal getDeclaredMethods0 method could not be found

getDeclaredMethod

@Nullable
public static java.lang.reflect.Method getDeclaredMethod(java.lang.Class<?> clazz,
                                                                    java.lang.String name,
                                                                    java.lang.Class<?>... parameterTypes)

Get a declared method of a class by its name and parameter types.
The reflection filter of the class will be ignored.

Parameters:

clazz - The class to get the method from

name - The name of the method

parameterTypes - The parameter types of the method

Returns:

The method or null if it doesn't exist

invoke

public static <T> T invoke(@Nullable
                           java.lang.Object instance,
                           java.lang.reflect.Method method,
                           java.lang.Object... args)

Invoke a method without any checks.
The method does not have to be accessible.

Type Parameters:

T - The return type of the method

Parameters:

instance - The instance to invoke the method on

method - The method to invoke

args - The arguments to pass to the method

Returns:

The return value of the method (null if void)

Throws:

MethodInvocationException - If the method could not be invoked

invokeSuper

public static <I extends S,S,T> T invokeSuper(@Nonnull
                                              I instance,
                                              @Nonnull
                                              java.lang.Class<S> superClass,
                                              java.lang.reflect.Method method,
                                              java.lang.Object... args)

Invoke a super method without any checks.
The method does not have to be accessible.

Type Parameters:

I - The type of the instance

S - The type of the super class

T - The return type of the method

Parameters:

instance - The instance to invoke the method on

superClass - The super class to call the method of

method - The method to invoke

args - The arguments to pass to the method

Returns:

The return value of the method (null if void)

Throws:

java.lang.IllegalStateException - If the method is static

MethodInvocationException - If the method could not be invoked