| Name | Description | Type | Package | Framework |
| OAbstractLock | Abstract Lock class. | Class | com.orientechnologies.common.concur.lock | Orientdb |
| OAdaptiveLock | Adaptive class to handle shared resources. | Class | com.orientechnologies.common.concur.lock | Orientdb |
| OExclusiveLock | Lock that uses the write lock of a reader writer lock object. | Class | com.orientechnologies.common.concur.lock | Orientdb |
| OInterruptedException | Class | com.orientechnologies.common.concur.lock | Orientdb | |
| OLock | Interface for locks. | Interface | com.orientechnologies.common.concur.lock | Orientdb |
| OLockException | Class | com.orientechnologies.common.concur.lock | Orientdb | |
| OLockManager | Class | com.orientechnologies.common.concur.lock | Orientdb | |
| OLockManager .LOCK | Returns the enum constant of this type with the specified name. | Class | com.orientechnologies.common.concur.lock.OLockManager | Orientdb |
| OModificationLock | This lock is intended to be used inside of storage to request lock on any data modifications. | Class | com.orientechnologies.common.concur.lock | Orientdb |
| OModificationOperationProhibitedException | Exception is thrown in case DB is locked for modifications but modification request ist trying to be acquired. | Class | com.orientechnologies.common.concur.lock | Orientdb |
| ONewLockManager | Class | com.orientechnologies.common.concur.lock | Orientdb | |
| OReadersWriterSpinLock | Class | com.orientechnologies.common.concur.lock | Orientdb | |
| OSharedLock | Lock that uses the write lock of a reader writer lock object. | Class | com.orientechnologies.common.concur.lock | Orientdb |
| OSharedLockEntry | Manages the shared lock requester list for the same resource. | Class | com.orientechnologies.common.concur.lock | Orientdb |
| OThreadCountersHashTable | Class | com.orientechnologies.common.concur.lock | Orientdb | |