Package org.neo4j.helpers

Common Java utilities.

See: Description

Interface Summary

Interface	Description
ArrayUtil.ArrayEquality
BiConsumer<T,U>	Deprecated use BiConsumer instead
Cancelable
CancellationRequest	Represents the concept of a cancellation notification towards a task.
Clock
CloneableInPublic
Factory<T>	Deprecated Use Factory instead.
Function<FROM,TO>	Deprecated use Function instead
Function2<T1,T2,R>	Deprecated
Listeners.Notification<T>
NamedThreadFactory.Monitor
Predicate<T>	Deprecated use Predicate instead
Provider<TYPE>	Deprecated Use Supplier instead
TaskControl	Represents a control handle passed to a child task which allows the creator to cancel it.
Thunk<T>	Deprecated Use Supplier instead
TransactionTemplate.Monitor
ValueGetter<T>	Deprecated use Supplier instead

Class Summary

Class	Description
Args	Parses a String[] argument from a main-method.
Args.ArgsParser
Args.Option<T>
ArrayUtil	Methods "missing" from Arrays are provided here.
Assertion
ConcurrentTransfer<TYPE>	Abstracts a meeting point between two threads, where a reference can change hands.
Counter	Deprecated This class will be removed in the next major release.
Exceptions
Format
FrozenClock
Functions	Deprecated use Functions instead.
FutureAdapter<V>
FutureAdapter.Present<V>
HostnamePort	Represents a hostname and port, optionally with a port range.
Listeners	Helper class for dealing with listeners
MathUtil
NamedThreadFactory
ObjectUtil	Deprecated This class will be removed in the next major release.
Pair<T1,T2>	Utility to handle pairs of objects.
Platforms	Deprecated
Predicates	Deprecated use Predicates instead
Predicates.AndPredicate<T>	Deprecated
Predicates.OrPredicate<T>	Deprecated
ProcessFailureException.Entry
RunCarefully
Service	A utility for locating services.
Service.CaseInsensitiveService	A base class for services, similar to Service, that compares keys using case insensitive comparison instead of exact comparison.
Settings	Deprecated this class is deprecated and will be moved to internal packages in the next major release
Settings.DefaultSetting<T>	Deprecated
SillyUtils	Deprecated This class will be removed in the next major release.
Stats	Deprecated This class will be removed in the next major release.
Strings	Helper functions for working with strings.
TaskCoordinator	Represents a collection point for various TaskControl instances that need to be waited on and potentially cancelled en mass.
TimeUtil
TransactionTemplate	Neo4j transaction template that automates the retry-on-exception logic.
TransactionTemplate.Monitor.Adapter
Triplet<T1,T2,T3>	Utility to handle triplets of objects.
Uris	Functions for working with URIs
UTF8	Utility class for converting strings to and from UTF-8 encoded bytes.
ValueGetter.FromValue<T>

Exception Summary

Exception	Description
PortBindException	A bind exception that includes which port we failed to bind to.
ProcessFailureException

Error Summary

Error	Description
ThisShouldNotHappenError	Deprecated Use IllegalStateException, IllegalArgumentException, UnsupportedOperationException or AssertionError instead.

Annotation Types Summary

Annotation Type	Description
Service.Implementation	Designates that a class implements the specified service and should be added to the services listings file (META-INF/services/[service-name]).

Package org.neo4j.helpers Description

Common Java utilities. A collection of useful utilities which you very often find yourself needing, but you can't (as of yet) find in the core Java SDK.