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/* * Copyright 2002-2016 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * https://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.springframework.aop.aspectj.annotation; import org.springframework.aop.aspectj.AspectInstanceFactory; import org.springframework.lang.Nullable; /** * Subinterface of {@link org.springframework.aop.aspectj.AspectInstanceFactory} * that returns {@link AspectMetadata} associated with AspectJ-annotated classes. * * <p>Ideally, AspectInstanceFactory would include this method itself, but because * AspectMetadata uses Java-5-only {@link org.aspectj.lang.reflect.AjType}, * we need to split out this subinterface. * * @author Rod Johnson * @since 2.0 * @see AspectMetadata * @see org.aspectj.lang.reflect.AjType */ public interface MetadataAwareAspectInstanceFactory extends AspectInstanceFactory { /** * Return the AspectJ AspectMetadata for this factory's aspect. * @return the aspect metadata */ AspectMetadata getAspectMetadata(); /** * Return the best possible creation mutex for this factory. * @return the mutex object (may be {@code null} for no mutex to use) * @since 4.3 */ @Nullable Object getAspectCreationMutex(); }