Package org.apache.hadoop.hdfs.util

Interface Summary

Interface	Description
Diff.Element<K>	An interface for the elements in a Diff.
Diff.Processor<E>	An interface for passing a method in order to process elements.
EnumCounters.Factory<E extends Enum<E>,C extends EnumCounters<E>>	A factory for creating counters.
ReferenceCountMap.ReferenceCounter	Interface for the reference count holder
RwLock	Read-write lock interface.

Class Summary

Class	Description
AtomicFileOutputStream	A FileOutputStream that has the property that it will only show up at its destination once it has been entirely written and flushed to disk.
ConstEnumCounters<E extends Enum<E>>	Const Counters for an enum type.
DataTransferThrottler	a class to throttle the data transfers.
Diff<K,E extends Diff.Element<K>>	The difference between the current state and a previous state of a list.
Diff.Container<E>	Containing exactly one element.
Diff.UndoInfo<E>	Undo information for some operations such as delete(E) and Diff.modify(Element, Element).
EnumCounters<E extends Enum<E>>	Counters for an enum type.
EnumCounters.Map<K,E extends Enum<E>,C extends EnumCounters<E>>	A key-value map which maps the keys to EnumCounters.
EnumDoubles<E extends Enum<E>>	Similar to EnumCounters except that the value type is double.
Holder<T>	A Holder is simply a wrapper around some other object.
LightWeightHashSet<T>	A low memory linked hash set implementation, which uses an array for storing the elements and linked lists for collision resolution.
LightWeightLinkedSet<T>	A low memory linked hash set implementation, which uses an array for storing the elements and linked lists for collision resolution.
MD5FileUtils	Static functions for dealing with files of the same format that the Unix "md5sum" utility writes.
RateLimiter	A rate limiter which loosely emulates the behavior of Guava's RateLimiter for branches which do not have that class available.
ReadOnlyList.Util	Utilities for ReadOnlyList
XMLUtils.Stanza	Represents a bag of key-value pairs encountered during parsing an XML file.

Enum Summary

Enum	Description
Diff.ListType

Exception Summary

Exception	Description
ConstEnumCounters.ConstEnumException	An exception class for modification on ConstEnumCounters.
XMLUtils.InvalidXmlException	Exception that reflects an invalid XML document.
XMLUtils.UnmanglingError	Exception that reflects a string that cannot be unmangled.