This interface represents a pair of
Lock objects with special locking behavior that is
useful for concurrent algorithms in which reader threads frequently
access a data structure and writer threads only infrequently modify
the structure. The Lock returned by
readLock( ) may be locked by multiple threads at
the same time as long as no thread has the writeLock(
) locked. See ReentrantReadWriteLock for
a concrete implementation with implementation-specific locking
details.
public interface
ReadWriteLock {
// Public Instance Methods
Lock
readLock ( );
Lock
writeLock ( );
}