io.fabric8.api.scr.support

Class ReflectionHelper

java.lang.Object

io.fabric8.api.scr.support.ReflectionHelper

public final class ReflectionHelper
extends java.lang.Object

Helper for working with reflection on classes.

This code is based on org.apache.camel.spring.util.ReflectionUtils class.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ReflectionHelper.FieldCallback Callback interface invoked on each field in the hierarchy.
static interface	ReflectionHelper.MethodCallback Action to take on each method.

Method Summary

Methods

Modifier and Type	Method and Description
static void	doWithFields(java.lang.Class<?> clazz, ReflectionHelper.FieldCallback fc) Invoke the given callback on all fields in the target class, going up the class hierarchy to get all declared fields.
static void	doWithMethods(java.lang.Class<?> clazz, ReflectionHelper.MethodCallback mc) Perform the given callback operation on all matching methods of the given class and superclasses (or given interface and super-interfaces).
static java.lang.Object	getField(java.lang.reflect.Field f, java.lang.Object instance)
static void	setField(java.lang.reflect.Field f, java.lang.Object instance, java.lang.Object value)

Methods inherited from class java.lang.Object

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

Method Detail

doWithFields

public static void doWithFields(java.lang.Class<?> clazz,
                ReflectionHelper.FieldCallback fc)
                         throws java.lang.IllegalArgumentException

Invoke the given callback on all fields in the target class, going up the class hierarchy to get all declared fields.

Parameters:

clazz - the target class to analyze

fc - the callback to invoke for each field

Throws:

java.lang.IllegalArgumentException

doWithMethods

public static void doWithMethods(java.lang.Class<?> clazz,
                 ReflectionHelper.MethodCallback mc)
                          throws java.lang.IllegalArgumentException

Perform the given callback operation on all matching methods of the given class and superclasses (or given interface and super-interfaces).

Parameters:

clazz - class to start looking at

mc - the callback to invoke for each method

Throws:

java.lang.IllegalArgumentException

getField

public static java.lang.Object getField(java.lang.reflect.Field f,
                        java.lang.Object instance)

setField

public static void setField(java.lang.reflect.Field f,
            java.lang.Object instance,
            java.lang.Object value)