Package org.jgroups.util

Provides useful functionality which cannot be assigned to any particular other package.

See: Description

Interface Summary

Interface	Description
Command	The Command patttern (see Gamma et al.).
SchedulerListener	Provides callback for use with a Scheduler.
Streamable	Implementations of Streamable can add their state directly to the output stream, enabling them to bypass costly serialization
ThreadLocalListener	Provides callback for use with a ReusableThread.
TimeScheduler.CancellableTask
TimeScheduler.Task	The interface that submitted tasks must implement

Class Summary

Class	Description
AckCollector
BoundedList	A bounded subclass of List, oldest elements are removed once max capacity is exceeded
Buffer	Buffer with an offset and length.
CondVar	Class that checks on a condition and - if condition doesn't match the expected result - waits until the result matches the expected result, or a timeout occurs.
ContextObjectInputStream	ObjectInputStream which sets a contact classloader for reading bytes into objects.
ExposedBufferedInputStream
ExposedBufferedOutputStream
ExposedByteArrayInputStream
ExposedByteArrayOutputStream	Extends ByteArrayOutputStream, but exposes the internal buffer.
ExposedDataOutputStream
GetNetworkInterfaces	Lists all network interfaces on a system
HashUtils	Helper class for performing some common hashing methods
ImmediateTask	Task which is executed immediately and only one time
LinkedListQueue	LinkedListQueue implementation based on java.util.Queue.
List	Doubly-linked list.
MagicObjectInputStream	Uses magic numbers for class descriptors
MagicObjectOutputStream	Uses magic numbers for class descriptors
Marshaller	Title: JGroups Communications Description: Contact me at mail@filip.net Copyright: Copyright (c) 2002 Company: www.filip.net
NullReadWriteLock
NullSync
Promise	Allows a thread to submit an asynchronous request and to wait for the result.
Proxy	Redirects incoming TCP connections to other hosts/ports.
Queue	Elements are added at the tail and removed from the head.
Queue2	Elements are added at the tail and removed from the head.
Range
ReusableThread	Reusable thread class.
Rsp	class that represents a response from a communication
RspList	Contains responses from all members.
Scheduler	Implementation of a priority scheduler.
Scheduler.Task
Stack	LIFO stack, with better performance than java.util.Stack (based on List).
ThreadPool	Maintains a set of ReusableThreads.
TimedWriter	Waits until the buffer has been written to the output stream, or until timeout msecs have elapsed, whichever comes first.
TimeScheduler	Fixed-delay & fixed-rate single thread scheduler The scheduler supports varying scheduling intervals by asking the task every time for its next preferred scheduling interval.
UnmodifiableVector	Vector which cannot be modified
Util	Collection of various utility routines that can not be assigned to other classes.

Exception Summary

Exception	Description
QueueClosedException

Package org.jgroups.util Description

Provides useful functionality which cannot be assigned to any particular other package.