Examples of com.sleepycat.je.latch.Latch.acquire()

com.sleepycat.je.latch.Latch.acquire()
Acquire a latch for exclusive/write access.
Wait for the latch if some other thread is holding it. If there are threads waiting for access, they will be granted the latch on a FIFO basis. When the method returns, the latch is held for exclusive access.
@throws EnvironmentFailureException if the latch is already held by thecalling thread.

    void demote(long nodeId, Locker locker) 
        throws DatabaseException {
        
  int lockTableIndex = getLockTableIndex(nodeId);
  Latch latch = lockTableLatches[lockTableIndex];
        latch.acquire();
        try {
            demoteInternal(nodeId, locker, lockTableIndex);
        } finally {
            latch.release();
        }

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    boolean isLocked(Long nodeId) 
        throws DatabaseException {


  int lockTableIndex = getLockTableIndex(nodeId);
  Latch latch = lockTableLatches[lockTableIndex];
        latch.acquire();
        try {
            return isLockedInternal(nodeId, lockTableIndex);
        } finally {
            latch.release();
        }

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    boolean isOwner(Long nodeId, Locker locker, LockType type) 
        throws DatabaseException {


  int lockTableIndex = getLockTableIndex(nodeId);
  Latch latch = lockTableLatches[lockTableIndex];
        latch.acquire();
        try {
            return isOwnerInternal(nodeId, locker, type, lockTableIndex);
        } finally {
            latch.release();
        }

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    boolean isWaiter(Long nodeId, Locker locker) 
        throws DatabaseException {
        
  int lockTableIndex = getLockTableIndex(nodeId);
  Latch latch = lockTableLatches[lockTableIndex];
        latch.acquire();
        try {
            return isWaiterInternal(nodeId, locker, lockTableIndex);
        } finally {
            latch.release();
        }

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    int nWaiters(Long nodeId) 
        throws DatabaseException {


  int lockTableIndex = getLockTableIndex(nodeId);
  Latch latch = lockTableLatches[lockTableIndex];
        latch.acquire();
        try {
            return nWaitersInternal(nodeId, lockTableIndex);
        } finally {
            latch.release();
        }

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    int nOwners(Long nodeId) 
        throws DatabaseException {


  int lockTableIndex = getLockTableIndex(nodeId);
  Latch latch = lockTableLatches[lockTableIndex];
        latch.acquire();
        try {
            return nOwnersInternal(nodeId, lockTableIndex);
        } finally {
            latch.release();
        }

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    Locker getWriteOwnerLocker(Long nodeId)
        throws DatabaseException {


  int lockTableIndex = getLockTableIndex(nodeId);
  Latch latch = lockTableLatches[lockTableIndex];
        latch.acquire();
        try {
            return getWriteOwnerLockerInternal(nodeId, lockTableIndex);
        } finally {
            latch.release();
        }

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          MemoryBudget mb)
        throws DatabaseException {


  int lockTableIndex = getLockTableIndex(nodeId);
  Latch latch = lockTableLatches[lockTableIndex];
        latch.acquire();
        try {
            return validateOwnershipInternal
    (nodeId, locker, type, flushFromWaiters, mb, lockTableIndex);
        } finally {
            latch.release();

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