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
ByteArrayProcessor	A byte array processor used to produce a byte[] out of the given one.
ConstructorFunction<K,V>	See ConcurrencyUtil
ExceptionUtil.ExceptionWrapper<T extends Throwable>	Interface used by rethrow/peel to wrap the peeled exception
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.
VersionAwareConstructorFunction<K,V>	VersionAware version of the ConstructorFunction.

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	Abstracts the system clock to simulate different clocks without changing the actual system time.
Clock.ClockImpl	Extend this class if you want to provide your own clock implementation.
ClockProperties	Utility class to set system parameters for the clock implementation.
CollectionUtil	Various collection utility methods.
ConcurrencyUtil	Utility methods to getOrPutSynchronized and getOrPutIfAbsent in a thread safe way from a 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>
ContextMutexFactory	Provides reference-counted mutexes suitable for synchronization in the context of a supplied object.
EmptyStatement	This class makes CheckStyle happy, if you have an ignored or expected exception, but need at least a single statement in the catch clause.
ExceptionUtil	Contains various exception related utility methods.
FutureUtil	This utility class contains convenience methods to work with multiple futures at the same time, e.g.
HashUtil	Utility methods related to hash tables.
ICMPHelper	Helper class that uses JNI to check whether the JVM process has enough permission to create raw-sockets.
ItemCounter<T>	Non Thread-Safe Counter of things.
IterableUtil	Utility functions for working with Iterable
JsonUtil	Utility class to deal with Json.
JVMUtil	Helper class for retrieving JVM specific information.
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.
OsHelper	Helper methods related to operating system on which the code is actually running.
PhoneHome	Pings phone home server with cluster info daily.
PhoneHome.PhoneHomeParameterCreator	Util class for parameters of OS and EE PhoneHome pings.
Preconditions	A utility class for validating arguments and state.
QueueUtil	Utility class for Queues
QuickMath	The class QuickMath contains methods to perform optimized mathematical operations.
RandomPicker	User: ahmetmircik Date: 10/7/13 Time: 12:27 PM
RuntimeMemoryInfoAccessor	Provides memory information using Runtime.
SampleableConcurrentHashMap<K,V>	ConcurrentHashMap to extend iterator capability.
SampleableConcurrentHashMap.SamplingEntry<K,V>	Entry to define keys and values for sampling.
ServiceLoader	Support class for loading Hazelcast services and hooks based on the Java ServiceLoader specification, but changed to the fact of class loaders to test for given services to work in multi classloader environments like application or OSGi servers.
SetUtil	Utility class for Sets.
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.
TimeUtil	Utility class for Time & unit conversions
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.