Package nonapi.io.github.classgraph.reflection

Class StandardReflectionDriver

java.lang.Object

nonapi.io.github.classgraph.reflection.ReflectionDriver

nonapi.io.github.classgraph.reflection.StandardReflectionDriver

class StandardReflectionDriver
extends ReflectionDriver

Standard reflection driver (uses AccessibleObject.setAccessible(boolean) to access non-public fields if necessary).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	StandardReflectionDriver.PrivilegedActionInvocationHandler<T>

Nested classes/interfaces inherited from class nonapi.io.github.classgraph.reflection.ReflectionDriver

ReflectionDriver.ClassMemberCache

Field Summary

Fields

Modifier and Type	Field	Description
private static Class<?>	accessControllerClass
private static Method	accessControllerDoPrivileged
private static Class<?>	privilegedActionClass
private static Method	setAccessibleMethod
private static Method	trySetAccessibleMethod

Constructor Summary

Constructors

Constructor	Description
StandardReflectionDriver()

Method Summary

Modifier and Type	Method	Description
private <T> T	doPrivileged(Callable<T> callable)	Call a method in the AccessController.doPrivileged(PrivilegedAction) context, using reflection, if possible (AccessController is deprecated in JDK 17).
(package private) Class<?>	findClass(String className)	Find a class by name.
(package private) <T> Constructor<T>[]	getDeclaredConstructors(Class<T> cls)	Get declared constructors for class.
(package private) Field[]	getDeclaredFields(Class<?> cls)	Get declared fields for class.
(package private) Method[]	getDeclaredMethods(Class<?> cls)	Get declared methods for class.
(package private) Object	getField(Object object, Field field)	Get the value of a non-static field, boxing the value if necessary.
(package private) Object	getStaticField(Field field)	Get the value of a static field, boxing the value if necessary.
(package private) Object	invokeMethod(Object object, Method method, Object... args)	Invoke a non-static method, boxing the result if necessary.
(package private) Object	invokeStaticMethod(Method method, Object... args)	Invoke a static method, boxing the result if necessary.
boolean	makeAccessible(Object instance, AccessibleObject obj)	Make a field or method accessible.
(package private) void	setField(Object object, Field field, Object value)	Set the value of a non-static field, unboxing the value if necessary.
(package private) void	setStaticField(Field field, Object value)	Set the value of a static field, unboxing the value if necessary.
private static boolean	tryMakeAccessible(AccessibleObject obj)

Methods inherited from class nonapi.io.github.classgraph.reflection.ReflectionDriver

findField, findInstanceField, findInstanceMethod, findMethod, findStaticField, findStaticMethod, isAccessible

Methods inherited from class java.lang.Object

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

Field Details

setAccessibleMethod

private static Method setAccessibleMethod

trySetAccessibleMethod

private static Method trySetAccessibleMethod

accessControllerClass

private static Class<?> accessControllerClass

privilegedActionClass

private static Class<?> privilegedActionClass

accessControllerDoPrivileged

private static Method accessControllerDoPrivileged

Constructor Details

StandardReflectionDriver

StandardReflectionDriver()

Method Details

doPrivileged

private <T> T doPrivileged(Callable<T> callable)
                    throws Throwable

Call a method in the AccessController.doPrivileged(PrivilegedAction) context, using reflection, if possible (AccessController is deprecated in JDK 17).

Throws:

Throwable

tryMakeAccessible

private static boolean tryMakeAccessible(AccessibleObject obj)

makeAccessible

public boolean makeAccessible(Object instance,
 AccessibleObject obj)

Description copied from class: ReflectionDriver

Make a field or method accessible.

Specified by:

makeAccessible in class ReflectionDriver

Parameters:

instance - the object instance, or null if static.

obj - the field or method.

Returns:

true if successful.

findClass

Class<?> findClass(String className)
            throws Exception

Description copied from class: ReflectionDriver

Find a class by name.

Specified by:

findClass in class ReflectionDriver

Parameters:

className - the class name

Returns:

the class reference

Throws:

Exception

getDeclaredMethods

Method[] getDeclaredMethods(Class<?> cls)
                     throws Exception

Description copied from class: ReflectionDriver

Get declared methods for class.

Specified by:

getDeclaredMethods in class ReflectionDriver

Parameters:

cls - the class

Returns:

the declared methods

Throws:

Exception

getDeclaredConstructors

<T> Constructor<T>[] getDeclaredConstructors(Class<T> cls)
                                      throws Exception

Description copied from class: ReflectionDriver

Get declared constructors for class.

Specified by:

getDeclaredConstructors in class ReflectionDriver

Type Parameters:

T - the generic type

Parameters:

cls - the class

Returns:

the declared constructors

Throws:

Exception

getDeclaredFields

Field[] getDeclaredFields(Class<?> cls)
                   throws Exception

Description copied from class: ReflectionDriver

Get declared fields for class.

Specified by:

getDeclaredFields in class ReflectionDriver

Parameters:

cls - the class

Returns:

the declared fields

Throws:

Exception

getField

Object getField(Object object,
 Field field)
         throws Exception

Description copied from class: ReflectionDriver

Get the value of a non-static field, boxing the value if necessary.

Specified by:

getField in class ReflectionDriver

Parameters:

object - the object instance to get the field value from

field - the non-static field

Returns:

the value of the field

Throws:

Exception

setField

void setField(Object object,
 Field field,
 Object value)
       throws Exception

Description copied from class: ReflectionDriver

Set the value of a non-static field, unboxing the value if necessary.

Specified by:

setField in class ReflectionDriver

Parameters:

object - the object instance to get the field value from

field - the non-static field

value - the value to set

Throws:

Exception

getStaticField

Object getStaticField(Field field)
               throws Exception

Description copied from class: ReflectionDriver

Get the value of a static field, boxing the value if necessary.

Specified by:

getStaticField in class ReflectionDriver

Parameters:

field - the static field

Returns:

the static field

Throws:

Exception

setStaticField

void setStaticField(Field field,
 Object value)
             throws Exception

Description copied from class: ReflectionDriver

Set the value of a static field, unboxing the value if necessary.

Specified by:

setStaticField in class ReflectionDriver

Parameters:

field - the static field

value - the value to set

Throws:

Exception

invokeMethod

Object invokeMethod(Object object,
 Method method,
 Object... args)
             throws Exception

Description copied from class: ReflectionDriver

Invoke a non-static method, boxing the result if necessary.

Specified by:

invokeMethod in class ReflectionDriver

Parameters:

object - the object instance to invoke the method on

method - the non-static method

args - the method arguments (or new Object[0] if there are no args)

Returns:

the return value (possibly a boxed value)

Throws:

Exception

invokeStaticMethod

Object invokeStaticMethod(Method method,
 Object... args)
                   throws Exception

Description copied from class: ReflectionDriver

Invoke a static method, boxing the result if necessary.

Specified by:

invokeStaticMethod in class ReflectionDriver

Parameters:

method - the static method

args - the method arguments (or new Object[0] if there are no args)

Returns:

the return value (possibly a boxed value)

Throws:

Exception