org.apache.hadoop.fs

Interface EtagSource

public interface EtagSource

An optional interface for FileStatus subclasses to implement to provide access to etags. If available FS SHOULD also implement the matching PathCapabilities -- etag supported: CommonPathCapabilities.ETAGS_AVAILABLE. -- etag consistent over rename: CommonPathCapabilities.ETAGS_PRESERVED_IN_RENAME.

Method Summary

Modifier and Type	Method and Description
String	getEtag() Return an etag of this file status.

Method Detail

getEtag

String getEtag()

Return an etag of this file status. A return value of null or "" means "no etag"

Returns:

a possibly null or empty etag.