Package org.neo4j.helpers

Common Java utilities.

See: Description

Interface Summary

Interface	Description
ArrayUtil.ArrayEquality
Cancelable
CancellationRequest	Represents the concept of a cancellation notification towards a task.
Clock	Deprecated please use Clock instead
CloneableInPublic
Listeners.Notification<T>
NamedThreadFactory.Monitor
TaskControl	Represents a control handle passed to a child task which allows the creator to cancel it.
TransactionTemplate.Monitor

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.
Exceptions
Format
FrozenClock	Deprecated please use Clock.fixed(Instant, ZoneId) 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
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.
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
Uris	Functions for working with URIs

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.