01: /*
02: * Copyright 2002-2007 the original author or authors.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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;
18:
19: /**
20: * Core Spring pointcut abstraction.
21: *
22: * <p>A pointcut is composed of a {@link ClassFilter} and a {@link MethodMatcher}.
23: * Both these basic terms and a Pointcut itself can be combined to build up combinations
24: * (e.g. through {@link org.springframework.aop.support.ComposablePointcut}).
25: *
26: * @author Rod Johnson
27: * @see ClassFilter
28: * @see MethodMatcher
29: * @see org.springframework.aop.support.Pointcuts
30: * @see org.springframework.aop.support.ClassFilters
31: * @see org.springframework.aop.support.MethodMatchers
32: */
33: public interface Pointcut {
34:
35: /**
36: * Return the ClassFilter for this pointcut.
37: * @return the ClassFilter (never <code>null</code>)
38: */
39: ClassFilter getClassFilter();
40:
41: /**
42: * Return the MethodMatcher for this pointcut.
43: * @return the MethodMatcher (never <code>null</code>)
44: */
45: MethodMatcher getMethodMatcher();
46:
47: /**
48: * Canonical Pointcut instance that always matches.
49: */
50: Pointcut TRUE = TruePointcut.INSTANCE;
51:
52: }
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