/*
* Copyright 2002-2009 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.beans.factory.support;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.config.DependencyDescriptor;
/**
* Strategy interface for determining whether a specific bean definition
* qualifies as an autowire candidate for a specific dependency.
*
* @author Mark Fisher
* @author Juergen Hoeller
* @since 2.5
*/
public interface AutowireCandidateResolver {
/**
* Determine whether the given bean definition qualifies as an
* autowire candidate for the given dependency.
* @param bdHolder the bean definition including bean name and aliases
* @param descriptor the descriptor for the target method parameter or field
* @return whether the bean definition qualifies as autowire candidate
*/
boolean isAutowireCandidate(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor);
/**
* Determine whether a default value is suggested for the given dependency.
* @param descriptor the descriptor for the target method parameter or field
* @return the value suggested (typically an expression String),
* or <code>null</code> if none found
* @since 3.0
*/
Object getSuggestedValue(DependencyDescriptor descriptor);
}
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