org.springframework.context.annotation.FullyQualifiedAnnotationBeanNameGenerator Maven / Gradle / Ivy
/*
* Copyright 2002-2020 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.context.annotation;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.util.Assert;
/**
* An extension of {@code AnnotationBeanNameGenerator} that uses the fully qualified
* class name as the default bean name if an explicit bean name is not supplied via
* a supported type-level annotation such as {@code @Component} (see
* {@link AnnotationBeanNameGenerator} for details on supported annotations).
*
* Favor this bean naming strategy over {@code AnnotationBeanNameGenerator} if
* you run into naming conflicts due to multiple autodetected components having the
* same non-qualified class name (i.e., classes with identical names but residing in
* different packages).
*
*
Note that an instance of this class is used by default for configuration-level
* import purposes; whereas, the default for component scanning purposes is a plain
* {@code AnnotationBeanNameGenerator}.
*
* @author Juergen Hoeller
* @author Sam Brannen
* @since 5.2.3
* @see org.springframework.beans.factory.support.DefaultBeanNameGenerator
* @see AnnotationBeanNameGenerator
* @see ConfigurationClassPostProcessor#IMPORT_BEAN_NAME_GENERATOR
*/
public class FullyQualifiedAnnotationBeanNameGenerator extends AnnotationBeanNameGenerator {
/**
* A convenient constant for a default {@code FullyQualifiedAnnotationBeanNameGenerator}
* instance, as used for configuration-level import purposes.
* @since 5.2.11
*/
public static final FullyQualifiedAnnotationBeanNameGenerator INSTANCE =
new FullyQualifiedAnnotationBeanNameGenerator();
@Override
protected String buildDefaultBeanName(BeanDefinition definition) {
String beanClassName = definition.getBeanClassName();
Assert.state(beanClassName != null, "No bean class name set");
return beanClassName;
}
}