com.sapportals.wcm.util.threads

Class ReaderWriterLock

java.lang.Object
  com.sapportals.wcm.util.threads.ReaderWriterLock

All Implemented Interfaces:

IReaderWriterLock

public class ReaderWriterLock
extends Object
implements IReaderWriterLock

A reader/writer lock implementation. Writers have higher priority which means that readers are denied access if there are writer waiting to acquire access.

Copyright (c) SAP AG 2001-2002

Constructor Summary

ReaderWriterLock()

Method Summary

void	acquireRead() Block the calling thread until the read lock could be acquired
void	acquireWrite() Block the calling thread until the write lock could be acquired
void	releaseRead() Release the read lock
void	releaseWrite() Release the write lock

Methods inherited from class java.lang.Object

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

Constructor Detail

ReaderWriterLock

public ReaderWriterLock()

Method Detail

acquireRead

public void acquireRead()

Block the calling thread until the read lock could be acquired

Specified by:

acquireRead in interface IReaderWriterLock

acquireWrite

public void acquireWrite()

Block the calling thread until the write lock could be acquired

Specified by:

acquireWrite in interface IReaderWriterLock

releaseRead

public void releaseRead()

Release the read lock

Specified by:

releaseRead in interface IReaderWriterLock

releaseWrite

public void releaseWrite()

Release the write lock

Specified by:

releaseWrite in interface IReaderWriterLock

Access Rights

This class can be accessed from:

SC	DC	Public Part	ACH
[sap.com] KMC-CM	[sap.com] tc/km/frwk	api	EP-KM-CM
[sap.com] KMC-WPC	[sap.com] tc/kmc/wpc/wpcfacade	api	EP-PIN-WPC-WCM