org.jboss.cache.lock
Class NonBlockingWriterLock

java.lang.Object
  org.jboss.cache.lock.ReadWriteLockWithUpgrade (src) 
      org.jboss.cache.lock.NonBlockingWriterLock

public class NonBlockingWriterLock

extends ReadWriteLockWithUpgrade (src)

NonBlockingWriterLock is a read/write lock (with upgrade) that has non-blocking write lock acquisition on existing read lock(s).

Note that the write lock is exclusive among write locks, e.g., only one write lock can be granted at one time, but the write lock is independent of the read locks. For example, a read lock to be acquired will be blocked if there is existing write lock, but will not be blocked if there are mutiple read locks already granted to other owners. On the other hand, a write lock can be acquired as long as there is no existing write lock, regardless how many read locks have been granted.

log_

protected static Logger (src)  log_

NonBlockingWriterLock

public NonBlockingWriterLock()

startWrite

protected boolean startWrite()

Overrides:

startWrite in class ReadWriteLockWithUpgrade (src)