Package org.apache.nifi.util

Class ReflectionUtils

java.lang.Object

org.apache.nifi.util.ReflectionUtils

public class ReflectionUtils
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor	Description
ReflectionUtils()

Method Summary

Modifier and Type	Method	Description
static void	invokeMethodsWithAnnotation(Class<? extends Annotation> annotation, Object instance, Object... args)	Invokes all methods on the given instance that have been annotated with the given Annotation.
static boolean	quietlyInvokeMethodsWithAnnotation(Class<? extends Annotation> annotation, Object instance, Object... args)	Invokes all methods on the given instance that have been annotated with the given Annotation.

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.slf4j.Logger LOG

Constructor Details

ReflectionUtils

public ReflectionUtils()

Method Details

invokeMethodsWithAnnotation

public static void invokeMethodsWithAnnotation(Class<? extends Annotation> annotation,
 Object instance,
 Object... args)
                                        throws IllegalAccessException,
IllegalArgumentException,
InvocationTargetException

Invokes all methods on the given instance that have been annotated with the given Annotation. If the signature of the method that is defined in instance uses 1 or more parameters, those parameters must be specified by the args parameter. However, if more arguments are supplied by the args parameter than needed, the extra arguments will be ignored.

Parameters:

annotation - the annotation to look for

instance - to invoke a method of

args - to supply in a method call

Throws:

InvocationTargetException - ite

IllegalArgumentException - iae

IllegalAccessException - if not allowed to invoke that method

quietlyInvokeMethodsWithAnnotation

public static boolean quietlyInvokeMethodsWithAnnotation(Class<? extends Annotation> annotation,
 Object instance,
 Object... args)

Invokes all methods on the given instance that have been annotated with the given Annotation. If the signature of the method that is defined in instance uses 1 or more parameters, those parameters must be specified by the args parameter. However, if more arguments are supplied by the args parameter than needed, the extra arguments will be ignored.

Parameters:

annotation - the annotation to look for

instance - to invoke a method of

args - to supply in a method call

Returns:

true if all appropriate methods were invoked and returned without throwing an Exception, false if one of the methods threw an Exception or could not be invoked; if false is returned, an error will have been logged.