org.apache.shiro.aop
Class DefaultAnnotationResolver

java.lang.Object
  extended by org.apache.shiro.aop.DefaultAnnotationResolver
All Implemented Interfaces:
AnnotationResolver

public class DefaultAnnotationResolver
extends Object
implements AnnotationResolver

Default AnnotationResolver implementation that merely inspects the MethodInvocation's target method, and returns targetMethod.getAnnotation(class).

Unfortunately Java's default reflection API for Annotations is not very robust, and this logic may not be enough - if the incoming method invocation represents a method from an interface, this default logic would not discover the annotation if it existed on the method implementation directly (as opposed to being defined directly in the interface definition).

More complex class hierarchy traversal logic is required to exhaust a method's target object's classes, parent classes, interfaces and parent interfaces. That logic will likely be added to this implementation in due time, but for now, this implementation relies on the JDK's default Method.getAnnotation(class) logic.

Since:
1.1

Constructor Summary
DefaultAnnotationResolver()
           
 
Method Summary
 Annotation getAnnotation(MethodInvocation mi, Class<? extends Annotation> clazz)
          Returns methodInvocation.getMethod().getAnnotation(clazz).
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DefaultAnnotationResolver

public DefaultAnnotationResolver()
Method Detail

getAnnotation

public Annotation getAnnotation(MethodInvocation mi,
                                Class<? extends Annotation> clazz)
Returns methodInvocation.getMethod().getAnnotation(clazz).

Specified by:
getAnnotation in interface AnnotationResolver
Parameters:
mi - the intercepted method to be invoked.
clazz - the annotation class to use to find an annotation instance on the method.
Returns:
the discovered annotation or null if an annotation instance could not be found.


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