alluxio.underfs.s3a

Class S3AUnderFileSystem.S3AObjectListingChunkV1

java.lang.Object

alluxio.underfs.s3a.S3AUnderFileSystem.S3AObjectListingChunkV1

All Implemented Interfaces:

ObjectUnderFileSystem.ObjectListingChunk

Enclosing class:

S3AUnderFileSystem

protected final class S3AUnderFileSystem.S3AObjectListingChunkV1
extends Object
implements ObjectUnderFileSystem.ObjectListingChunk

Wrapper over S3 ListObjectsRequest.

Method Summary

Modifier and Type	Method and Description
String[]	getCommonPrefixes() Use common prefixes to infer pseudo-directories in object store.
ObjectUnderFileSystem.ObjectListingChunk	getNextChunk() Gets next chunk of object listings.
ObjectUnderFileSystem.ObjectStatus[]	getObjectStatuses() Returns objects in a pseudo-directory which may be a file or a directory.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface alluxio.underfs.ObjectUnderFileSystem.ObjectListingChunk

hasNextChunk

Method Detail

getObjectStatuses

public ObjectUnderFileSystem.ObjectStatus[] getObjectStatuses()

Description copied from interface: ObjectUnderFileSystem.ObjectListingChunk

Returns objects in a pseudo-directory which may be a file or a directory.

Specified by:

getObjectStatuses in interface ObjectUnderFileSystem.ObjectListingChunk

Returns:

a list of object statuses

getCommonPrefixes

public String[] getCommonPrefixes()

Description copied from interface: ObjectUnderFileSystem.ObjectListingChunk

Use common prefixes to infer pseudo-directories in object store.

Specified by:

getCommonPrefixes in interface ObjectUnderFileSystem.ObjectListingChunk

Returns:

a list of common prefixes

getNextChunk

@Nullable
public ObjectUnderFileSystem.ObjectListingChunk getNextChunk()
                                                                throws IOException

Description copied from interface: ObjectUnderFileSystem.ObjectListingChunk

Gets next chunk of object listings.

Specified by:

getNextChunk in interface ObjectUnderFileSystem.ObjectListingChunk

Returns:

null if listing did not find anything or is done, otherwise return new ObjectUnderFileSystem.ObjectListingChunk for the next chunk

Throws:

IOException