Class ReaderPreferenceReadWriteLock

java.lang.Object

EDU.oswego.cs.dl.util.concurrent.WriterPreferenceReadWriteLock

EDU.oswego.cs.dl.util.concurrent.ReaderPreferenceReadWriteLock

All Implemented Interfaces:

ReadWriteLock

public class ReaderPreferenceReadWriteLock
extends WriterPreferenceReadWriteLock

A ReadWriteLock that prefers waiting readers over waiting writers when there is contention. The range of applicability of this class is very limited. In the majority of situations, writer preference locks provide more reasonable semantics.

[ Introduction to this package. ]

Nested Class Summary

Nested classes/interfaces inherited from class WriterPreferenceReadWriteLock

WriterPreferenceReadWriteLock.ReaderLock, WriterPreferenceReadWriteLock.Signaller, WriterPreferenceReadWriteLock.WriterLock

Field Summary

Fields inherited from class WriterPreferenceReadWriteLock

activeReaders_, activeWriter_, readerLock_, waitingReaders_, waitingWriters_, writerLock_

Constructor Summary

Constructors

Constructor	Description
ReaderPreferenceReadWriteLock()

Method Summary

Modifier and Type	Method	Description
protected boolean	allowReader()	Override this method to change to reader preference

Methods inherited from class WriterPreferenceReadWriteLock

cancelledWaitingReader, cancelledWaitingWriter, endRead, endWrite, readLock, startRead, startReadFromNewReader, startReadFromWaitingReader, startWrite, startWriteFromNewWriter, startWriteFromWaitingWriter, writeLock

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ReaderPreferenceReadWriteLock

public ReaderPreferenceReadWriteLock()

Method Details

allowReader

protected boolean allowReader()

Description copied from class: WriterPreferenceReadWriteLock

Override this method to change to reader preference

Overrides:

allowReader in class WriterPreferenceReadWriteLock