1 /*
2 * Copyright 2002-2006 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package org.springframework.aop.aspectj;
18
19 import org.springframework.core.Ordered;
20
21 /**
22 * Interface to be implemented by types that can supply the information
23 * needed to sort advice/advisors by AspectJ's precedence rules.
24 *
25 * @author Adrian Colyer
26 * @since 2.0
27 * @see org.springframework.aop.aspectj.autoproxy.AspectJPrecedenceComparator
28 */
29 public interface AspectJPrecedenceInformation extends Ordered {
30
31 // Implementation note:
32 // We need the level of indirection this interface provides as otherwise the
33 // AspectJPrecedenceComparator must ask an Advisor for its Advice in all cases
34 // in order to sort advisors. This causes problems with the
35 // InstantiationModelAwarePointcutAdvisor which needs to delay creating
36 // its advice for aspects with non-singleton instantiation models.
37
38 /**
39 * The name of the aspect (bean) in which the advice was declared.
40 */
41 String getAspectName();
42
43 /**
44 * The declaration order of the advice member within the aspect.
45 */
46 int getDeclarationOrder();
47
48 /**
49 * Return whether this is a before advice.
50 */
51 boolean isBeforeAdvice();
52
53 /**
54 * Return whether this is an after advice.
55 */
56 boolean isAfterAdvice();
57
58 }