spring ObjectFactory 源码
spring ObjectFactory 代码
文件路径：/spring-beans/src/main/java/org/springframework/beans/factory/ObjectFactory.java
/*
* Copyright 2002-2018 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;
import org.springframework.beans.BeansException;
/**
* Defines a factory which can return an Object instance
* (possibly shared or independent) when invoked.
*
* <p>This interface is typically used to encapsulate a generic factory which
* returns a new instance (prototype) of some target object on each invocation.
*
* <p>This interface is similar to {@link FactoryBean}, but implementations
* of the latter are normally meant to be defined as SPI instances in a
* {@link BeanFactory}, while implementations of this class are normally meant
* to be fed as an API to other beans (through injection). As such, the
* {@code getObject()} method has different exception handling behavior.
*
* @author Colin Sampaleanu
* @since 1.0.2
* @param <T> the object type
* @see FactoryBean
*/
@FunctionalInterface
public interface ObjectFactory<T> {
/**
* Return an instance (possibly shared or independent)
* of the object managed by this factory.
* @return the resulting instance
* @throws BeansException in case of creation errors
*/
T getObject() throws BeansException;
}
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