001/*
002 * Copyright 2002-2012 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.aop;
018
019/**
020 * Core Spring pointcut abstraction.
021 *
022 * <p>A pointcut is composed of a {@link ClassFilter} and a {@link MethodMatcher}.
023 * Both these basic terms and a Pointcut itself can be combined to build up combinations
024 * (e.g. through {@link org.springframework.aop.support.ComposablePointcut}).
025 *
026 * @author Rod Johnson
027 * @see ClassFilter
028 * @see MethodMatcher
029 * @see org.springframework.aop.support.Pointcuts
030 * @see org.springframework.aop.support.ClassFilters
031 * @see org.springframework.aop.support.MethodMatchers
032 */
033public interface Pointcut {
034
035        /**
036         * Return the ClassFilter for this pointcut.
037         * @return the ClassFilter (never {@code null})
038         */
039        ClassFilter getClassFilter();
040
041        /**
042         * Return the MethodMatcher for this pointcut.
043         * @return the MethodMatcher (never {@code null})
044         */
045        MethodMatcher getMethodMatcher();
046
047
048        /**
049         * Canonical Pointcut instance that always matches.
050         */
051        Pointcut TRUE = TruePointcut.INSTANCE;
052
053}