Package org.apache.hadoop.fs

Interface BatchListingOperations

@Public
@Unstable
public interface BatchListingOperations

Interface filesystems MAY implement to offer a batched list. If implemented, filesystems SHOULD declare CommonPathCapabilities.FS_EXPERIMENTAL_BATCH_LISTING to be a supported path capability.

Method Summary

Modifier and Type	Method	Description
RemoteIterator<PartialListing<LocatedFileStatus>>	batchedListLocatedStatusIterator(java.util.List<Path> paths)	Batched listing API that returns PartialListings for the passed Paths.
RemoteIterator<PartialListing<FileStatus>>	batchedListStatusIterator(java.util.List<Path> paths)	Batched listing API that returns PartialListings for the passed Paths.

Method Detail

batchedListStatusIterator

RemoteIterator<PartialListing<FileStatus>> batchedListStatusIterator(java.util.List<Path> paths)
                                                              throws java.io.IOException

Batched listing API that returns PartialListings for the passed Paths.

Parameters:

paths - List of paths to list.

Returns:

RemoteIterator that returns corresponding PartialListings.

Throws:

java.io.IOException - failure

batchedListLocatedStatusIterator

RemoteIterator<PartialListing<LocatedFileStatus>> batchedListLocatedStatusIterator(java.util.List<Path> paths)
                                                                            throws java.io.IOException

Batched listing API that returns PartialListings for the passed Paths. The PartialListing will contain LocatedFileStatus entries with locations.

Parameters:

paths - List of paths to list.

Returns:

RemoteIterator that returns corresponding PartialListings.

Throws:

java.io.IOException - failure