org.springframework.beans.factory.support.SimpleAutowireCandidateResolver Maven / Gradle / Ivy
/*
* Copyright 2002-2017 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.beans.factory.support;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.config.DependencyDescriptor;
/**
* {@link AutowireCandidateResolver} implementation to use when no annotation
* support is available. This implementation checks the bean definition only.
*
* @author Mark Fisher
* @author Juergen Hoeller
* @since 2.5
*/
public class SimpleAutowireCandidateResolver implements AutowireCandidateResolver {
@Override
public boolean isAutowireCandidate(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor) {
return bdHolder.getBeanDefinition().isAutowireCandidate();
}
/**
* Determine whether the given descriptor is effectively required.
* The default implementation checks {@link DependencyDescriptor#isRequired()}.
* @param descriptor the descriptor for the target method parameter or field
* @return whether the descriptor is marked as required or possibly indicating
* non-required status some other way (e.g. through a parameter annotation)
* @since 4.3.9
* @see DependencyDescriptor#isRequired()
*/
public boolean isRequired(DependencyDescriptor descriptor) {
return descriptor.isRequired();
}
@Override
public Object getSuggestedValue(DependencyDescriptor descriptor) {
return null;
}
@Override
public Object getLazyResolutionProxyIfNecessary(DependencyDescriptor descriptor, String beanName) {
return null;
}
}