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NullSourceExtractor (Spring Framework API 2.0) - Spring Framework 2.0.5 API 文档英文版

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org.springframework.beans.factory.parsing
Class NullSourceExtractor

java.lang.Object
  org.springframework.beans.factory.parsing.NullSourceExtractor

All Implemented Interfaces:

SourceExtractor

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public class NullSourceExtractor
extends Object
implements SourceExtractor

Simple implementation of SourceExtractor that returns null as the source metadata.

This is the default implementation and prevents too much metadata from being held in memory during normal (non-tooled) runtime usage.

Since:

2.0

Author:

Rob Harrop

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Constructor Summary
NullSourceExtractor()

 

Method Summary
Object	extractSource(Object sourceCandidate, Resource definitionResource)           This implementation simply returns null for any input.

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

NullSourceExtractor

public NullSourceExtractor()

Method Detail

extractSource

public Object extractSource(Object sourceCandidate,
                            Resource definitionResource)

This implementation simply returns null for any input.

Specified by:

extractSource in interface SourceExtractor

Parameters:

sourceCandidate - the original source metadata (never null)

definitionResource - the resource that defines the given source object (may be null)

Returns:

the source metadata object to store (may be null)

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