001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied. See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019
020package org.apache.commons.weaver.model;
021
022import java.lang.annotation.Annotation;
023import java.lang.annotation.ElementType;
024
025/**
026 * Weave interest composed of annotation type and target element type.
027 */
028public final class WeaveInterest {
029
030    /**
031     * Observed annotation type.
032     */
033    public final Class<? extends Annotation> annotationType;
034
035    /**
036     * Attached element type.
037     */
038    public final ElementType target;
039
040    private WeaveInterest(final Class<? extends Annotation> annotationType, final ElementType target) {
041        super();
042        this.annotationType = annotationType;
043        this.target = target;
044    }
045
046    /**
047     * Get a {@link WeaveInterest}.
048     * @param annotationType observed annotation type
049     * @param target attached element type
050     * @return {@link WeaveInterest}
051     */
052    public static WeaveInterest of(final Class<? extends Annotation> annotationType, final ElementType target) {
053        return new WeaveInterest(annotationType, target);
054    }
055}