Package io.netty.util

Utility classes used across multiple packages.

See: Description

Interface Summary

Interface	Description
AsyncMapping<IN,OUT>
Attribute<T>	An attribute which allows to store a value reference.
AttributeMap	Holds Attributes which can be accessed via AttributeKey.
BooleanSupplier	Represents a supplier of boolean-valued results.
ByteProcessor	Provides a mechanism to iterate over a collection of bytes.
Constant<T extends Constant<T>>	A singleton which is safe to compare via the == operator.
HashingStrategy<T>	Abstraction for hash code generation and equality comparison.
IntSupplier	Represents a supplier of int-valued results.
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	Deprecated please use ResourceLeakTracker as it may lead to false-positives.
ResourceLeakHint	A hint object that provides human-readable message for easier resource leak tracking.
ResourceLeakTracker<T>
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).
UncheckedBooleanSupplier	Represents a supplier of boolean-valued results which doesn't throw any checked exceptions.

Class Summary

Class	Description
AbstractConstant<T extends AbstractConstant<T>>	Base implementation of Constant.
AbstractReferenceCounted	Abstract base class for classes wants to implement ReferenceCounted.
AsciiString	A string which has been encoded into a character encoding whose character always takes a single byte, similarly to ASCII.
AttributeKey<T>	Key which can be used to access Attribute out of the AttributeMap.
ByteProcessor.IndexNotOfProcessor	A ByteProcessor which finds the first appearance which is not of a specific byte.
ByteProcessor.IndexOfProcessor	A ByteProcessor which finds the first appearance of a specific byte.
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.
DomainMappingBuilder<V>	Deprecated Use DomainNameMappingBuilder instead.
DomainNameMapping<V>	Maps a domain name to its associated value object.
DomainNameMappingBuilder<V>	Builder for immutable DomainNameMapping instances.
HashedWheelTimer	A Timer optimized for approximated I/O timeout scheduling.
NettyRuntime	A utility class for wrapping calls to Runtime.
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>
ResourceLeakDetectorFactory	This static factory should be used to load ResourceLeakDetectors as needed
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).
ResourceLeakException	Deprecated This class will be removed in the future version.

Error Summary

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

Annotation Types Summary

Annotation Type	Description
SuppressForbidden	Annotation to suppress forbidden-apis errors inside a whole class, a method, or a field.

Package io.netty.util Description

Utility classes used across multiple packages.