spring RuntimeBeanNameReference 源码
spring RuntimeBeanNameReference 代码
文件路径：/spring-beans/src/main/java/org/springframework/beans/factory/config/RuntimeBeanNameReference.java
/*
* Copyright 2002-2021 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.config;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* Immutable placeholder class used for a property value object when it's a
* reference to another bean name in the factory, to be resolved at runtime.
*
* @author Juergen Hoeller
* @since 2.0
* @see RuntimeBeanReference
* @see BeanDefinition#getPropertyValues()
* @see org.springframework.beans.factory.BeanFactory#getBean
*/
public class RuntimeBeanNameReference implements BeanReference {
private final String beanName;
@Nullable
private Object source;
/**
* Create a new RuntimeBeanNameReference to the given bean name.
* @param beanName name of the target bean
*/
public RuntimeBeanNameReference(String beanName) {
Assert.hasText(beanName, "'beanName' must not be empty");
this.beanName = beanName;
}
@Override
public String getBeanName() {
return this.beanName;
}
/**
* Set the configuration source {@code Object} for this metadata element.
* <p>The exact type of the object will depend on the configuration mechanism used.
*/
public void setSource(@Nullable Object source) {
this.source = source;
}
@Override
@Nullable
public Object getSource() {
return this.source;
}
@Override
public boolean equals(@Nullable Object other) {
if (this == other) {
return true;
}
if (!(other instanceof RuntimeBeanNameReference that)) {
return false;
}
return this.beanName.equals(that.beanName);
}
@Override
public int hashCode() {
return this.beanName.hashCode();
}
@Override
public String toString() {
return '<' + getBeanName() + '>';
}
}
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