org.tomitribe.util.reflect.Parameter Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of tomitribe-util Show documentation
There is a newer version: 2.0.0
/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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 org.tomitribe.util.reflect;

import java.lang.annotation.Annotation;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Type;

public class Parameter implements AnnotatedElement {

    private final Annotation[] annotations;
    private final Class type;
    private final Type genericType;
    private final int index;

    public Parameter(final Annotation[] annotations, final Class type, final Type genericType) {
        this(annotations, type, genericType, -1);
    }

    public Parameter(final Annotation[] annotations, final Class type, final Type genericType, final int index) {
        this.annotations = annotations;
        this.type = type;
        this.genericType = genericType;
        this.index = index;
    }

    public int getIndex() {
        return index;
    }

    public Class getType() {
        return type;
    }

    public Type getGenericType() {
        return genericType;
    }

    @Override
    public boolean isAnnotationPresent(final Class annotationClass) {
        return getAnnotation(annotationClass) != null;
    }

    @Override
    public  T getAnnotation(final Class annotationClass) {
        for (final Annotation annotation : annotations) {
            if (annotationClass.equals(annotation.annotationType())) {
                return (T) annotation;
            }
        }
        return null;
    }

    @Override
    public Annotation[] getAnnotations() {
        return annotations;
    }

    @Override
    public Annotation[] getDeclaredAnnotations() {
        return getAnnotations();
    }
}