spring PassThroughSourceExtractor 源码
spring PassThroughSourceExtractor 代码
文件路径：/spring-beans/src/main/java/org/springframework/beans/factory/parsing/PassThroughSourceExtractor.java
/*
* Copyright 2002-2012 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.parsing;
import org.springframework.core.io.Resource;
import org.springframework.lang.Nullable;
/**
* Simple {@link SourceExtractor} implementation that just passes
* the candidate source metadata object through for attachment.
*
* <p>Using this implementation means that tools will get raw access to the
* underlying configuration source metadata provided by the tool.
*
* <p>This implementation <strong>should not</strong> be used in a production
* application since it is likely to keep too much metadata in memory
* (unnecessarily).
*
* @author Rob Harrop
* @since 2.0
*/
public class PassThroughSourceExtractor implements SourceExtractor {
/**
* Simply returns the supplied {@code sourceCandidate} as-is.
* @param sourceCandidate the source metadata
* @return the supplied {@code sourceCandidate}
*/
@Override
public Object extractSource(Object sourceCandidate, @Nullable Resource definingResource) {
return sourceCandidate;
}
}
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