Package com.intellij.util

Class ReflectionUtil

java.lang.Object

com.intellij.util.ReflectionUtil

public class ReflectionUtil
extends Object

Method Summary

Modifier and Type	Method	Description
static List<Field>	collectFields(Class clazz)
static void	copyFieldValue(Object from, Object to, Field field)
static <T> T	createInstance(Constructor<T> constructor, Object... args)
static String	declarationToString(GenericDeclaration anInterface)
static Field	findAssignableField(Class<?> clazz, Class<?> fieldType, String fieldName)
static Class	findCallerClass(int framesToSkip)	Returns the class this method was called 'framesToSkip' frames up the caller hierarchy.
static Field	findField(Class clazz, Class type, String name)
static Method	findMethod(Collection<Method> methods, String name, Class... parameters)
static Class	forName(String fqn)
static Type[]	getActualTypeArguments(ParameterizedType parameterizedType)
static List<Field>	getClassDeclaredFields(Class aClass)
static List<Method>	getClassDeclaredMethods(Class aClass)
static List<Method>	getClassDeclaredMethods(Class aClass, boolean includeSynthetic)
static List<Method>	getClassPublicMethods(Class aClass)
static List<Method>	getClassPublicMethods(Class aClass, boolean includeSynthetic)
static Field	getDeclaredField(Class aClass, String name)
static Method	getDeclaredMethod(Class aClass, String name, Class... parameters)
static <T> Constructor<T>	getDefaultConstructor(Class<T> aClass)
static <T> T	getField(Class objectClass, Object object, Class<T> fieldType, String fieldName)
static Class	getGrandCallerClass()
static Method	getMethod(Class aClass, String name, Class... parameters)
static Class	getMethodDeclaringClass(Class<?> instanceClass, String methodName, Class... parameters)
static Class<?>	getRawType(Type type)
static <T> T	getStaticFieldValue(Class objectClass, Class<T> fieldType, String fieldName)
static boolean	isAssignable(Class<?> ancestor, Class<?> descendant)
static <T> T	newInstance(Class<T> aClass)	Like Class.newInstance() but also handles private classes
static void	resetField(Class clazz, Class type, String name)
static void	resetField(Object object, Class type, String name)
static void	resetField(Object object, Field field)
static void	resetField(Object object, String name)
static void	resetStaticField(Class aClass, String name)
static Type	resolveVariable(TypeVariable variable, Class classType)
static Type	resolveVariable(TypeVariable variable, Class classType, boolean resolveInInterfacesOnly)
static Type	resolveVariableInHierarchy(TypeVariable variable, Class aClass)
static <T> boolean	setField(Class objectClass, Object object, Class<T> fieldType, String fieldName, T value)
static Class<?>	substituteGenericType(Type genericType, Type classType)

Methods inherited from class java.lang.Object

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

Method Details

resolveVariable

@Nullable
public static Type resolveVariable(@NotNull
 TypeVariable variable,
 @NotNull
 Class classType)

resolveVariable

@Nullable
public static Type resolveVariable(@NotNull
 TypeVariable variable,
 @NotNull
 Class classType,
 boolean resolveInInterfacesOnly)

declarationToString

@NotNull
public static String declarationToString(@NotNull
 GenericDeclaration anInterface)

getRawType

@NotNull
public static Class<?> getRawType(@NotNull
 Type type)

getActualTypeArguments

@NotNull
public static Type[] getActualTypeArguments(@NotNull
 ParameterizedType parameterizedType)

substituteGenericType

@Nullable
public static Class<?> substituteGenericType(@NotNull
 Type genericType,
 @NotNull
 Type classType)

collectFields

@NotNull
public static List<Field> collectFields(@NotNull
 Class clazz)

findField

@NotNull
public static Field findField(@NotNull
 Class clazz,
 @Nullable
 Class type,
 @NotNull
 String name)
                       throws NoSuchFieldException

Throws:

NoSuchFieldException

findAssignableField

@NotNull
public static Field findAssignableField(@NotNull
 Class<?> clazz,
 @Nullable("null means any type")
 Class<?> fieldType,
 @NotNull
 String fieldName)
                                 throws NoSuchFieldException

Throws:

NoSuchFieldException

resetField

public static void resetField(@NotNull
 Class clazz,
 @Nullable("null means of any type")
 Class type,
 @NotNull
 String name)

resetField

public static void resetField(@NotNull
 Object object,
 @Nullable("null means any type")
 Class type,
 @NotNull
 String name)

resetField

public static void resetField(@NotNull
 Object object,
 @NotNull
 String name)

resetField

public static void resetField(@Nullable
 Object object,
 @NotNull
 Field field)

resetStaticField

public static void resetStaticField(@NotNull
 Class aClass,
 @NotNull @NonNls
 String name)

findMethod

@Nullable
public static Method findMethod(@NotNull
 Collection<Method> methods,
 @NonNls @NotNull
 String name,
 @NotNull
 Class... parameters)

getMethod

@Nullable
public static Method getMethod(@NotNull
 Class aClass,
 @NonNls @NotNull
 String name,
 @NotNull
 Class... parameters)

getDeclaredMethod

@Nullable
public static Method getDeclaredMethod(@NotNull
 Class aClass,
 @NonNls @NotNull
 String name,
 @NotNull
 Class... parameters)

getDeclaredField

@Nullable
public static Field getDeclaredField(@NotNull
 Class aClass,
 @NonNls @NotNull
 String name)

getClassPublicMethods

@NotNull
public static List<Method> getClassPublicMethods(@NotNull
 Class aClass)

getClassPublicMethods

@NotNull
public static List<Method> getClassPublicMethods(@NotNull
 Class aClass,
 boolean includeSynthetic)

getClassDeclaredMethods

@NotNull
public static List<Method> getClassDeclaredMethods(@NotNull
 Class aClass)

getClassDeclaredMethods

@NotNull
public static List<Method> getClassDeclaredMethods(@NotNull
 Class aClass,
 boolean includeSynthetic)

getClassDeclaredFields

@NotNull
public static List<Field> getClassDeclaredFields(@NotNull
 Class aClass)

getMethodDeclaringClass

@Nullable
public static Class getMethodDeclaringClass(@NotNull
 Class<?> instanceClass,
 @NonNls @NotNull
 String methodName,
 @NotNull
 Class... parameters)

getField

public static <T> T getField(@NotNull
 Class objectClass,
 @Nullable
 Object object,
 @Nullable("null means any type")
 Class<T> fieldType,
 @NotNull @NonNls
 String fieldName)

getStaticFieldValue

public static <T> T getStaticFieldValue(@NotNull
 Class objectClass,
 @Nullable("null means any type")
 Class<T> fieldType,
 @NotNull @NonNls
 String fieldName)

setField

public static <T> boolean setField(@NotNull
 Class objectClass,
 Object object,
 @Nullable("null means any type")
 Class<T> fieldType,
 @NotNull @NonNls
 String fieldName,
 T value)

resolveVariableInHierarchy

public static Type resolveVariableInHierarchy(@NotNull
 TypeVariable variable,
 @NotNull
 Class aClass)

getDefaultConstructor

@NotNull
public static <T> Constructor<T> getDefaultConstructor(@NotNull
 Class<T> aClass)

newInstance

@NotNull
public static <T> T newInstance(@NotNull
 Class<T> aClass)

Like Class.newInstance() but also handles private classes

createInstance

@NotNull
public static <T> T createInstance(@NotNull
 Constructor<T> constructor,
 @NotNull
 Object... args)

getGrandCallerClass

@Nullable
public static Class getGrandCallerClass()

copyFieldValue

public static void copyFieldValue(@NotNull
 Object from,
 @NotNull
 Object to,
 @NotNull
 Field field)
                           throws IllegalAccessException

Throws:

IllegalAccessException

forName

@NotNull
public static Class forName(@NotNull
 String fqn)

findCallerClass

@Nullable
public static Class findCallerClass(int framesToSkip)

Returns the class this method was called 'framesToSkip' frames up the caller hierarchy. NOTE: Extremely expensive! Please consider not using it. These aren't the droids you're looking for!

isAssignable

public static boolean isAssignable(@NotNull
 Class<?> ancestor,
 @NotNull
 Class<?> descendant)