net.minecraftforge.fml.relauncher

Class ReflectionHelper

java.lang.Object

net.minecraftforge.fml.relauncher.ReflectionHelper

public class ReflectionHelper
extends java.lang.Object

Some reflection helper code.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ReflectionHelper.UnableToAccessFieldException
static class	ReflectionHelper.UnableToFindClassException
static class	ReflectionHelper.UnableToFindFieldException
static class	ReflectionHelper.UnableToFindMethodException
static class	ReflectionHelper.UnknownConstructorException

Constructor Summary

Constructors

Constructor and Description
ReflectionHelper()

Method Summary

Modifier and Type	Method and Description
static <T> java.lang.reflect.Constructor<T>	findConstructor(java.lang.Class<T> klass, java.lang.Class<?>... parameterTypes) Finds a constructor in the specified class that has matching parameter types.
static java.lang.reflect.Field	findField(java.lang.Class<?> clazz, java.lang.String... fieldNames)
static java.lang.reflect.Method	findMethod(java.lang.Class<?> clazz, java.lang.String methodName, java.lang.String methodObfName, java.lang.Class<?>... parameterTypes) Finds a method with the specified name and parameters in the given class and makes it accessible.
static java.lang.Class<? super java.lang.Object>	getClass(java.lang.ClassLoader loader, java.lang.String... classNames)
static <T,E> T	getPrivateValue(java.lang.Class<? super E> classToAccess, E instance, int fieldIndex)
static <T,E> T	getPrivateValue(java.lang.Class<? super E> classToAccess, E instance, java.lang.String... fieldNames)
static <T,E> void	setPrivateValue(java.lang.Class<? super T> classToAccess, T instance, E value, int fieldIndex)
static <T,E> void	setPrivateValue(java.lang.Class<? super T> classToAccess, T instance, E value, java.lang.String... fieldNames)

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionHelper

public ReflectionHelper()

Method Detail

findField

public static java.lang.reflect.Field findField(java.lang.Class<?> clazz,
                                                java.lang.String... fieldNames)

getPrivateValue

public static <T,E> T getPrivateValue(java.lang.Class<? super E> classToAccess,
                                      @Nullable
                                      E instance,
                                      int fieldIndex)

getPrivateValue

public static <T,E> T getPrivateValue(java.lang.Class<? super E> classToAccess,
                                      E instance,
                                      java.lang.String... fieldNames)

setPrivateValue

public static <T,E> void setPrivateValue(java.lang.Class<? super T> classToAccess,
                                         T instance,
                                         E value,
                                         int fieldIndex)

setPrivateValue

public static <T,E> void setPrivateValue(java.lang.Class<? super T> classToAccess,
                                         T instance,
                                         E value,
                                         java.lang.String... fieldNames)

getClass

public static java.lang.Class<? super java.lang.Object> getClass(java.lang.ClassLoader loader,
                                                                 java.lang.String... classNames)

findMethod

@Nonnull
public static java.lang.reflect.Method findMethod(@Nonnull
                                                            java.lang.Class<?> clazz,
                                                            @Nonnull
                                                            java.lang.String methodName,
                                                            @Nullable
                                                            java.lang.String methodObfName,
                                                            java.lang.Class<?>... parameterTypes)

Finds a method with the specified name and parameters in the given class and makes it accessible. Note: for performance, store the returned value and avoid calling this repeatedly.

Throws an exception if the method is not found.

Parameters:

clazz - The class to find the method on.

methodName - The name of the method to find (used in developer environments, i.e. "getWorldTime").

methodObfName - The obfuscated name of the method to find (used in obfuscated environments, i.e. "func_72820_D"). If the name you are looking for is on a class that is never obfuscated, this should be null.

parameterTypes - The parameter types of the method to find.

Returns:

The method with the specified name and parameters in the given class.

findConstructor

@Nonnull
public static <T> java.lang.reflect.Constructor<T> findConstructor(@Nonnull
                                                                             java.lang.Class<T> klass,
                                                                             @Nonnull
                                                                             java.lang.Class<?>... parameterTypes)

Finds a constructor in the specified class that has matching parameter types.

Type Parameters:

T - The type

Parameters:

klass - The class to find the constructor in

parameterTypes - The parameter types of the constructor.

Returns:

The constructor

Throws:

java.lang.NullPointerException - if klass is null

java.lang.NullPointerException - if parameterTypes is null

ReflectionHelper.UnknownConstructorException - if the constructor could not be found