Examples of com.sleepycat.je.txn.Locker.lock()

com.sleepycat.je.txn.Locker.lock()
Request a blocking or non-blocking lock of the given type on the given LSN. @param lsn is the node to lock. @param lockType is the type of lock to request. @param noWait is true to override the defaultNoWait setting. If true,or if defaultNoWait is true, throws LockNotAvailableException if the lock cannot be granted without waiting. @param database is the database containing lsn. @throws LockNotAvailableException if a non-blocking lock was denied. @throws LockConflictException if a blocking lock could not be acquired.

        /*
         * Write lock instead of read lock to avoid upgrade issues.
         * There's a good chance that we'll need it for write
         * anyway.
         */
        currentLock = locker.lock
                        (currentLN.getNodeId(), LockType.WRITE, database);
        bin = cursor.latchBIN();
        duplicateEntryIndex = cursor.getIndex();
        n = bin.fetchTarget(duplicateEntryIndex);
        if (n == null) {

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        Locker locker = cursor.getLocker();
                    LockResult currentLock = null;
        bin.releaseLatchIfOwner();


        while (currentLN != null) {
      currentLock = locker.lock
                            (currentLN.getNodeId(), LockType.WRITE, database);
      while (true) {
          duplicateBin = cursor.getDupBIN();
          duplicateBin.latch();
          if (duplicateBin != cursor.getDupBIN()) {

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             *
             * We request a lock while holding latches which is usually
             * forbidden, but safe in this case since we know it will be
             * immediately granted (we just created dupCountLN above).
             */
            LockResult lockResult = locker.lock
                (dupCountLN.getNodeId(), LockType.WRITE, database);
            lockResult.setAbortLsn(firstDupCountLNLsn, false);


            dupCountLN.setDupCount(2);
            long dupCountLsn = dupCountLN.log(env, database.getId(), key,

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             *
             * We request a lock while holding latches which is usually
             * forbidden, but safe in this case since we know it will be
             * immediately granted (we just created dupCountLN above).
             */
            LockResult lockResult = locker.lock
                (dupCountLN.getNodeId(), LockType.WRITE, false /*noWait*/,
                 database);
            lockResult.setAbortLsn(firstDupCountLNLsn, false);


            dupCountLN.setDupCount(2);

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             *
             * We request a lock while holding latches which is usually
             * forbidden, but safe in this case since we know it will be
             * immediately granted (we just created dupCountLN above).
             */
            LockResult lockResult = locker.lock
                (dupCountLN.getNodeId(), LockType.WRITE, false /*noWait*/,
                 database);
            lockResult.setAbortLsn(firstDupCountLNLsn, false);


            dupCountLN.setDupCount(2);

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        /*
         * Write lock instead of read lock to avoid upgrade issues.
         * There's a good chance that we'll need it for write
         * anyway.
         */
        currentLock = locker.lock
                        (currentLN.getNodeId(), LockType.WRITE, database);
        bin = cursor.latchBIN();
        duplicateEntryIndex = cursor.getIndex();
        n = bin.fetchTarget(duplicateEntryIndex);
        if (n == null) {

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        Locker locker = cursor.getLocker();
                    LockResult currentLock = null;
        bin.releaseLatchIfOwner();


        while (currentLN != null) {
      currentLock = locker.lock
                            (currentLN.getNodeId(), LockType.WRITE, database);
      while (true) {
          duplicateBin = cursor.getDupBIN();
          duplicateBin.latch();
          if (duplicateBin != cursor.getDupBIN()) {

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             *
             * We request a lock while holding latches which is usually
             * forbidden, but safe in this case since we know it will be
             * immediately granted (we just created dupCountLN above).
             */
            LockResult lockResult = locker.lock
                (dupCountLN.getNodeId(), LockType.WRITE, database);
            lockResult.setAbortLsn(firstDupCountLNLsn, false);


            dupCountLN.setDupCount(2);
            long dupCountLsn = dupCountLN.log(env, database.getId(), key,

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