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org.apache.derby.impl.services.locks
Interface Control

All Known Implementing Classes:: Lock, LockControl

public interface Control

Method Summary

void addWaiters(java.util.Dictionary waiters)


ActiveLock firstWaiter()


Lock getFirstGrant()


java.util.List getGranted()


Lock getLock(java.lang.Object compatabilitySpace, java.lang.Object qualifier)


org.apache.derby.iapi.services.locks.Lockable getLockable()


LockControl getLockControl()


java.util.List getWaiting()


boolean isEmpty()


boolean isGrantable(boolean otherWaiters, java.lang.Object compatabilitySpace, java.lang.Object qualifier)


Control shallowClone()
          Clone this lock for the lock table information.

boolean unlock(org.apache.derby.iapi.services.locks.Latch lockInGroup, int unlockCount)

Method Detail

getLockable

public org.apache.derby.iapi.services.locks.Lockable getLockable()

getLockControl

public LockControl getLockControl()

getLock

public Lock getLock(java.lang.Object compatabilitySpace,
                    java.lang.Object qualifier)

shallowClone

public Control shallowClone()

Clone this lock for the lock table information. Objects cloned will not be altered.

firstWaiter

public ActiveLock firstWaiter()

isEmpty

public boolean isEmpty()

unlock

public boolean unlock(org.apache.derby.iapi.services.locks.Latch lockInGroup,
                      int unlockCount)

addWaiters

public void addWaiters(java.util.Dictionary waiters)

getFirstGrant

public Lock getFirstGrant()

getGranted

public java.util.List getGranted()

getWaiting

public java.util.List getWaiting()

isGrantable

public boolean isGrantable(boolean otherWaiters,
                           java.lang.Object compatabilitySpace,
                           java.lang.Object qualifier)