/*
* Copyright 2002-2006 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.parsing;
import org.springframework.core.io.Resource;
/**
* Simple implementation of {@link SourceExtractor} that returns <code>null</code>
* as the source metadata.
*
* <p>This is the default implementation and prevents too much metadata from being
* held in memory during normal (non-tooled) runtime usage.
*
* @author Rob Harrop
* @since 2.0
*/
public class NullSourceExtractor implements SourceExtractor {
/**
* This implementation simply returns <code>null</code> for any input.
*/
public Object extractSource(Object sourceCandidate, Resource definitionResource) {
return null;
}
}
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