1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.juneau;
18
19 import org.apache.juneau.commons.reflect.*;
20
21 /**
22 * A unit of work for applying an annotation to a context builder.
23 *
24 * <p>
25 * Consists of a pair of objects:
26 * <ul>
27 * <li>{@link AnnotationInfo} - The annotation being applied.
28 * <li>{@link AnnotationApplier} - The applier for that annotation.
29 * </ul>
30 *
31 */
32 @SuppressWarnings("rawtypes")
33 public class AnnotationWork {
34 final AnnotationInfo annotation;
35 final AnnotationApplier applier;
36
37 /**
38 * Constructor.
39 *
40 * @param annotation The annotation being applied.
41 * @param applier The applier for that annotation.
42 */
43 public AnnotationWork(AnnotationInfo annotation, AnnotationApplier applier) {
44 this.annotation = annotation;
45 this.applier = applier;
46 }
47
48 /**
49 * Calls {@link AnnotationApplier#apply(AnnotationInfo, Object)} on the specified builder.
50 *
51 * <p>
52 * A no-op if {@link AnnotationApplier#canApply(Object)} returns <jk>false</jk>.
53 *
54 * @param builder The builder.
55 */
56 @SuppressWarnings("unchecked")
57 public void apply(Object builder) {
58 if (canApply(builder))
59 applier.apply(annotation, builder);
60 }
61
62 /**
63 * Returns <jk>true</jk> if the annotation in this work can be applied to the specified builder.
64 *
65 * @param builder The builder.
66 * @return <jk>true</jk> if the annotation in this work can be applied to the specified builder.
67 */
68 public boolean canApply(Object builder) {
69 return applier.canApply(builder);
70 }
71 }