Package voldemort.utils

Basic helper functions.

See:
Description

Interface Summary

ClosableIterator<T>	An iterator that must be closed after use
HashFunction	A hash function for bytes, determinisitically maps bytes into ints
Time	The interface to time itself.
Utils.Posix

Class Summary

ByteArray	A byte array container that provides an equals and hashCode pair based on the contents of the byte array.
ByteUtils	Utility functions for munging on bytes
CachedCallable<T>
CmdUtils	Helper functions for command line parsing.
ConstantHashFunction	A hash function that always hashes everything to the same value.
DaemonThreadFactory	A thread factory that sets the threads to run as daemons.
DefaultIterable<V>	An iterable that always produces the given iterator
DirectoryIterator	An iterator over all the files contained in a set of directories, including any subdirectories
DynamicEventThrottler
DynamicThrottleLimit
Entropy
EventThrottler	A class to throttle Events to a certain rate This class takes a maximum rate in events/sec and a minimum interval in ms at which to check the rate.
FnvHashFunction	Taken from http://www.isthe.com/chongo/tech/comp/fnv hash = basis for each octet_of_data to be hashed hash = hash * FNV_prime hash = hash xor octet_of_data return hash
JmxUtils	JMX helper functions These rely on annotations to create MBeans.
JNAUtils	Native functions used through JNA
KeyDistributionGenerator
KeyLocationValidation
ManifestFileReader	A utility class that abstract out fields from manifest file
MetadataVersionStoreUtils	A Utils class that facilitates conversion between the string containing metadata versions and the corresponding Properties object.
NetworkClassLoader	Network class Loader to load Classes on different JVMs needed to provide a User Defined Functions (Filter API) on the server side w/o needing to add jar on each server.
Pair<F,S>	Represents a pair of items.
Props	A less fucked properties class - Implements Map instead of extending HashMap - Hash helpers for getting typed values
RebalanceUtils	RebalanceUtils provide basic functionality for rebalancing.
ReflectUtils	Utilities for reflection
StringOutputStream	A simple string Output Stream.
StripedLock	A parallel keyed lock
SystemTime	Time implementation that just reads from the system clock
Utils	Helper functions FTW!
VoldemortIOUtils
WriteThroughCache<K,V>	Extends Java HashMap HashMap as a Write through cache provide a hook to write custom write back strategies

Exception Summary

ConfigurationException
UndefinedPropertyException	Thrown when a required property is not present

Package voldemort.utils Description

Basic helper functions.