org.springframework.integration.config.annotation

Class MessagingAnnotationUtils

java.lang.Object

org.springframework.integration.config.annotation.MessagingAnnotationUtils

public final class MessagingAnnotationUtils
extends Object

Utility methods to support annotation processing.

Since:

4.0

Author:

Gary Russell, Dave Syer, Gunnar Hillert, Soby Chacko, Artem Bilan

Method Summary

Methods

Modifier and Type	Method and Description
static Method	findAnnotatedMethod(Object target, Class<? extends Annotation> annotationType)
static boolean	hasValue(Object value)
static <T> T	resolveAttribute(List<Annotation> annotations, String name, Class<T> requiredType) Get the attribute value from the annotation hierarchy, returning the first non-empty value closest to the annotated method.

Methods inherited from class java.lang.Object

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

Method Detail

resolveAttribute

public static <T> T resolveAttribute(List<Annotation> annotations,
                     String name,
                     Class<T> requiredType)

Get the attribute value from the annotation hierarchy, returning the first non-empty value closest to the annotated method. While traversing up the hierarchy, for string-valued attributes, an empty string is ignored. For array-valued attributes, an empty array is ignored. The overridden attribute must be the same type.

Type Parameters:

T - The type.

Parameters:

annotations - The meta-annotations in order (closest first).

name - The attribute name.

requiredType - The expected type.

Returns:

The value.

hasValue

public static boolean hasValue(Object value)

findAnnotatedMethod

public static Method findAnnotatedMethod(Object target,
                         Class<? extends Annotation> annotationType)