org.eclipse.net4j.util.concurrent
Interface IRWLockManager<OBJECT,CONTEXT>

All Known Subinterfaces:

IRWOLockManager<OBJECT,CONTEXT>

All Known Implementing Classes:

RWLockManager, RWOLockManager

public interface IRWLockManager<OBJECT,CONTEXT>

Support Multiple reads/no write and upgrade lock from read to write. Many context could request write lock at the same time. It will privileges first context that has already a read lock. If no one has any read lock, it's "first come first serve".

Since:

3.0

WAIT

static final int WAIT

See Also:

Constant Field Values

NO_WAIT

static final int NO_WAIT

See Also:

Constant Field Values

lock

void lock(IRWLockManager.LockType type,
          CONTEXT context,
          Collection<? extends OBJECT> objectsToLock,
          long timeout)
          throws InterruptedException

Throws:

InterruptedException

lock

void lock(IRWLockManager.LockType type,
          CONTEXT context,
          OBJECT objectToLock,
          long timeout)
          throws InterruptedException

Throws:

InterruptedException

unlock

void unlock(IRWLockManager.LockType type,
            CONTEXT context,
            Collection<? extends OBJECT> objectsToUnlock)

Attempts to release for a given locktype, context and objects.

Throws:

IllegalMonitorStateException - Unlocking objects without lock.

unlock

void unlock(CONTEXT context)

Attempts to release all locks(read and write) for a given context.

hasLock

boolean hasLock(IRWLockManager.LockType type,
                CONTEXT context,
                OBJECT objectToLock)

hasLockByOthers

boolean hasLockByOthers(IRWLockManager.LockType type,
                        CONTEXT context,
                        OBJECT objectToLock)