org.fjank.jcache.persistence
Class ReadWriteLock

java.lang.Object
  org.fjank.jcache.persistence.ReadWriteLock

public class ReadWriteLock

extends java.lang.Object

This class coordinates concurrent calls to an object's get and set methods so that calls to the object set methods do not interfere with each other or with calls to the object's get methods.

Only a single instance of this class should be created per specific resource that requires Read/Write lock protection.

The invariant required by this class is that the method done must be called, and only be called, after a previous call to either the method readLock or writeLock. This class coordinates concurrent calls to an object's get and set methods so that calls to the object set methods do not interfere with each other or with calls to the object's get methods.

Only a single instance of this class should be created per specific resource that requires Read/Write lock protection.

The invariant required by this class is that the method done must be called, and only be called, after a previous call to either the method readLock or writeLock. todo we will use oswego instead, so this can be deleted.

Constructor Summary

ReadWriteLock()
Default constructor.

Method Summary

void	done() finishes this lock
void	readLock() adds a new readlock
void	writeLock() Unsynchronized writeLock. todo rewrite me.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadWriteLock

public ReadWriteLock()

Default constructor.

Method Detail

readLock

public void readLock()

adds a new readlock

writeLock

public void writeLock()

Unsynchronized writeLock. todo rewrite me.

done

public void done()
          throws DiskCacheException

finishes this lock

Throws:

DiskCacheException - if exceptioins occur.