1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.onami.factoryannotation;
20
21 import java.lang.annotation.Annotation;
22
23 /**
24 * This interface needs to be implemented by all listeners that are interested in events of identity provision. Avaiable
25 * events are {@link #beforeInjection(FactoryAnnotationProvision, Annotation)} and
26 * {@link #afterInjection(FactoryAnnotationProvision, Annotation, Object)}.
27 *
28 * @param <T> The type to be injected
29 * @param <A> Annotation type where injection happens
30 * @since 4.0
31 * @author noctarius
32 */
33 public interface FactoryAnnotationProvisionListener<T, A extends Annotation>
34 {
35
36 /**
37 * This event is called just before the provision will take place.
38 *
39 * @param factoryAnnotationProvision {@link FactoryAnnotationProvision} implementation holding information about the
40 * provision.
41 * @param provisionAnnotation The actual annotation of the bound annotation type
42 */
43 void beforeInjection( FactoryAnnotationProvision<T, A> factoryAnnotationProvision, A provisionAnnotation );
44
45 /**
46 * This event is called directly after the provision has taken place.
47 *
48 * @param factoryAnnotationProvision {@link FactoryAnnotationProvision} implementation holding information about the
49 * provision.
50 * @param provisionAnnotation The actual annotation of the bound annotation type
51 * @param value The value that was injected during the provision
52 */
53 void afterInjection( FactoryAnnotationProvision<T, A> factoryAnnotationProvision, A provisionAnnotation, T value );
54
55 }