How to use

extractValue

method

in

org.springframework.beans.factory.annotation.QualifierAnnotationAutowireCandidateResolver

/**
 * Determine a suggested value from any of the given candidate annotations.
 */
@Nullable
protected Object findValue(Annotation[] annotationsToSearch) {
  if (annotationsToSearch.length > 0) {   // qualifier annotations have to be local
    AnnotationAttributes attr = AnnotatedElementUtils.getMergedAnnotationAttributes(
        AnnotatedElementUtils.forAnnotations(annotationsToSearch), this.valueAnnotationType);
    if (attr != null) {
      return extractValue(attr);
    }
  }
  return null;
}

/**
 * Determine a suggested value from any of the given candidate annotations.
 */
@Nullable
protected Object findValue(Annotation[] annotationsToSearch) {
  if (annotationsToSearch.length > 0) {   // qualifier annotations have to be local
    AnnotationAttributes attr = AnnotatedElementUtils.getMergedAnnotationAttributes(
        AnnotatedElementUtils.forAnnotations(annotationsToSearch), this.valueAnnotationType);
    if (attr != null) {
      return extractValue(attr);
    }
  }
  return null;
}

/**
 * Determine a suggested value from any of the given candidate annotations.
 */
protected Object findValue(Annotation[] annotationsToSearch) {
  if (annotationsToSearch.length > 0) {   // qualifier annotations have to be local
    AnnotationAttributes attr = AnnotatedElementUtils.getMergedAnnotationAttributes(
        AnnotatedElementUtils.forAnnotations(annotationsToSearch), this.valueAnnotationType);
    if (attr != null) {
      return extractValue(attr);
    }
  }
  return null;
}