|
Spring Framework example source code file (LazySingletonAspectInstanceFactoryDecorator.java)
The Spring Framework LazySingletonAspectInstanceFactoryDecorator.java source code/* * Copyright 2002-2007 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 * * http://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.core.Ordered; import org.springframework.util.Assert; /** * Decorator to cause a MetadataAwareAspectInstanceFactory to instantiate only once. * * @author Rod Johnson * @author Juergen Hoeller * @since 2.0 */ public class LazySingletonAspectInstanceFactoryDecorator implements MetadataAwareAspectInstanceFactory { private final MetadataAwareAspectInstanceFactory maaif; private Object materialized; /** * Create a new lazily initializing decorator for the given AspectInstanceFactory. * @param maaif the MetadataAwareAspectInstanceFactory to decorate */ public LazySingletonAspectInstanceFactoryDecorator(MetadataAwareAspectInstanceFactory maaif) { Assert.notNull(maaif, "AspectInstanceFactory must not be null"); this.maaif = maaif; } public synchronized Object getAspectInstance() { if (this.materialized == null) { this.materialized = this.maaif.getAspectInstance(); } return this.materialized; } public ClassLoader getAspectClassLoader() { return this.maaif.getAspectClassLoader(); } public boolean isMaterialized() { return (this.materialized != null); } public AspectMetadata getAspectMetadata() { return this.maaif.getAspectMetadata(); } public int getOrder() { if (this.maaif instanceof Ordered) { return ((Ordered) this.maaif).getOrder(); } return Ordered.LOWEST_PRECEDENCE; } @Override public String toString() { return "LazySingletonAspectInstanceFactoryDecorator: decorating " + this.maaif; } } Other Spring Framework examples (source code examples)Here is a short list of links related to this Spring Framework LazySingletonAspectInstanceFactoryDecorator.java source code file: |
... this post is sponsored by my books ... | |
#1 New Release! |
FP Best Seller |
Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.
A percentage of advertising revenue from
pages under the /java/jwarehouse
URI on this website is
paid back to open source projects.