Package com.hazelcast.util

This package contains classes to support the inner workings of Hazelcast as well as some backports of newer Java features / data structures to support older Java versions in a clean and nice way.

See: Description

Interface Summary

Interface	Description
ConstructorFunction<K,V>	See ConcurrencyUtil
FutureUtil.ExceptionHandler	Internally used interface to define behavior of the FutureUtil methods when exceptions arise
IConcurrentMap<K,V>	A ConcurrentMap with applyIfAbsent function.
MemoryInfoAccessor	Used for providing runtime memory information of Java virtual machine.

Class Summary

Class	Description
AddressUtil	AddressUtil contains Address helper methods
AddressUtil.AddressHolder	Holds address
AddressUtil.AddressMatcher	http://docs.oracle.com/javase/1.5.0/docs/guide/net/ipv6_guide/index.html
Base64	This class provides encode/decode for RFC 2045 Base64 as defined by RFC 2045, N.
BitSetUtils	Convenient method for BitSet manipulations
Clock	Utility class to be able to simulate different time zones.
Clock.ClockImpl	Clock abstraction to be able to simulate different clocks without changing actual system time.
CollectionUtil	Various collection utility methods, mainly targeted to use internally.
ConcurrencyUtil	Utility methods to getOrPutSynchronized and getOrPutIfAbsent in a thread safe way from ConcurrentMap with a ConstructorFunction.
ConcurrentReferenceHashMap<K,V>	An advanced hash table supporting configurable garbage collection semantics of keys and values, optional referential-equality, full concurrency of retrievals, and adjustable expected concurrency for updates.
ConcurrentReferenceHashMap.SimpleEntry<K,V>
EmptyStatement	This class does nothing! It is useful if you e.g.
ExceptionUtil	Contains various exception related utility methods.
FilteringClassLoader	This is used to separate Server and Client inside the same JVM on new standalone client unittests! NEVER EVER use this anywhere in production! :D
FutureUtil	This utility class contains convenience methods to work with multiple futures at the same time, e.g.
HashUtil
ItemCounter<T>	Non Thread-Safe Counter of things.
IterableUtil	Utility functions for working with Iterable
JsonUtil	Utility class to deal with Json.
MapUtil	Utility class for Maps
MD5Util	Utility class for hashing with MD5
MutableInteger	Mutable integer which can be used for counting purposes.
MutableLong	Mutable long which can be used for counting purposes.
OperatingSystemMXBeanSupport	Support class for reading attributes from OperatingSystemMXBean.
PhoneHome	Pings phone home server with cluster info daily.
Preconditions	A utility class for validating arguments and state.
QuickMath	The class QuickMath contains methods to perform optimized mathematical operations.
RandomPicker	User: ahmetmircik Date: 10/7/13 Time: 12:27 PM
ResponseQueueFactory	Factory for creating response queues.
RuntimeMemoryInfoAccessor	Provides memory information using Runtime.
SampleableConcurrentHashMap<K,V>	ConcurrentHashMap to extend iterator capability.
ServiceLoader	Support class for loading Hazelcast services and hooks based on the Java ServiceLoader specification but changed in the fact of classloaders to test for given services to work in multi classloader environments like application or OSGi servers
SortingUtil	Utility class for generating Comparators to be used in sort methods specific to hazelcast classes.
StateMachine<T extends Enum<T>>	Simple state machine using an Enum as possible states.
StringUtil	Utility class for Strings.
ThreadUtil	Utility class to manipulate and query thread id
UnmodifiableIterator<E>	An iterator where items cannot be removed
UnmodifiableListIterator<E>	A listiterator where items cannot be removed
UuidUtil	Util class to generate type 4 (pseudo randomly generated) UUID.

Enum Summary

Enum	Description
ConcurrentReferenceHashMap.Option	Behavior-changing configuration options for the map
ConcurrentReferenceHashMap.ReferenceType	An option specifying which Java reference type should be used to refer to a key and/or value.
IterationType	To differentiate users selection on result collection on map-wide operations like values , keySet , query etc.

Exception Summary

Exception	Description
AddressUtil.InvalidAddressException	Thrown when given address is not valid.

Package com.hazelcast.util Description

This package contains classes to support the inner workings of Hazelcast as well as some backports of newer Java features / data structures to support older Java versions in a clean and nice way. This is an internal package; so we don't provide backward compatibility on these classes.