juzu.impl.common.AbstractAnnotatedElement Maven / Gradle / Ivy
/*
* Copyright 2013 eXo Platform SAS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package juzu.impl.common;
import java.lang.annotation.Annotation;
import java.lang.reflect.AnnotatedElement;
/**
* @author Julien Viet
*/
public abstract class AbstractAnnotatedElement implements AnnotatedElement {
/** . */
public static final AbstractAnnotatedElement EMPTY = wrap(new Annotation[0]);
public static AbstractAnnotatedElement wrap(final Annotation[] annotations) {
return new AbstractAnnotatedElement() {
@Override
public Annotation[] getDeclaredAnnotations() {
return annotations;
}
};
}
@Override
public boolean isAnnotationPresent(Class annotationClass) {
return getAnnotation(annotationClass) != null;
}
@Override
public T getAnnotation(Class annotationClass) {
for (Annotation annotation : getDeclaredAnnotations()) {
if (annotationClass.isInstance(annotation)) {
return annotationClass.cast(annotation);
}
}
return null;
}
@Override
public Annotation[] getAnnotations() {
return getDeclaredAnnotations();
}
}