Package io.netty.util

Utility classes used across multiple packages.

See: Description

Interface Summary

Interface	Description
Attribute<T>	An attribute which allows to store a value reference.
AttributeMap	Holds Attributes which can be accessed via AttributeKey.
Constant<T extends Constant<T>>	A singleton which is safe to compare via the == operator.
Mapping<IN,OUT>	Maintains the mapping from the objects of one type to the objects of the other type.
Recycler.Handle<T>
ReferenceCounted	A reference-counted object that requires explicit deallocation.
ResourceLeak
ResourceLeakHint	A hint object that provides human-readable message for easier resource leak tracking.
Timeout	A handle associated with a TimerTask that is returned by a Timer.
Timer	Schedules TimerTasks for one-time future execution in a background thread.
TimerTask	A task which is executed after the delay specified with Timer.newTimeout(TimerTask, long, TimeUnit).

Class Summary

Class	Description
AbstractConstant<T extends AbstractConstant<T>>	Base implementation of Constant.
AbstractReferenceCounted	Abstract base class for classes wants to implement ReferenceCounted.
AttributeKey<T>	Key which can be used to access Attribute out of the AttributeMap.
CharsetUtil	A utility class that provides various common operations and constants related with Charset and its relevant classes.
ConstantPool<T extends Constant<T>>	A pool of Constants.
DefaultAttributeMap	Default AttributeMap implementation which use simple synchronization per bucket to keep the memory overhead as low as possible.
DomainNameMapping<V>	Maps a domain name to its associated value object.
HashedWheelTimer	A Timer optimized for approximated I/O timeout scheduling.
NetUtil	A class that holds a number of network-related constants.
Recycler<T>	Light-weight object pool based on a thread-local stack.
ReferenceCountUtil	Collection of method to handle objects that may implement ReferenceCounted.
ResourceLeakDetector<T>
ThreadDeathWatcher	Checks if a thread is alive periodically and runs a task when a thread dies.
Version	Retrieves the version information of available Netty artifacts.

Enum Summary

Enum	Description
ResourceLeakDetector.Level	Represents the level of resource leak detection.

Exception Summary

Exception	Description
IllegalReferenceCountException	An IllegalStateException which is raised when a user attempts to access a ReferenceCounted whose reference count has been decreased to 0 (and consequently freed).

Error Summary

Error	Description
Signal	A special Error which is used to signal some state or request by throwing it.

Package io.netty.util Description

Utility classes used across multiple packages.