| Name | Description | Type | Package | Framework |
| OTransaction | Interface | com.orientechnologies.orient.core.tx | Orientdb | |
| OTransaction .TXSTATUS | Returns the enum constant of this type with the specified name. | Class | com.orientechnologies.orient.core.tx.OTransaction | Orientdb |
| OTransaction .TXTYPE | Returns the enum constant of this type with the specified name. | Class | com.orientechnologies.orient.core.tx.OTransaction | Orientdb |
| OTransactionAbstract | Class | com.orientechnologies.orient.core.tx | Orientdb | |
| OTransactionIndexChanges | Class | com.orientechnologies.orient.core.tx | Orientdb | |
| OTransactionIndexChanges .OPERATION | Returns the enum constant of this type with the specified name. | Class | com.orientechnologies.orient.core.tx.OTransactionIndexChanges | Orientdb |
| OTransactionIndexChangesPerKey | Class | com.orientechnologies.orient.core.tx | Orientdb | |
| OTransactionIndexChangesPerKey .OTransactionIndexEntry | Class | com.orientechnologies.orient.core.tx.OTransactionIndexChangesPerKey | Orientdb | |
| OTransactionNoTx | No operation transaction. | Class | com.orientechnologies.orient.core.tx | Orientdb |
| OTransactionOptimistic | Class | com.orientechnologies.orient.core.tx | Orientdb | |
| OTransactionRealAbstract | Class | com.orientechnologies.orient.core.tx | Orientdb | |
| OTransactionRealAbstract .OTransactionRecordIndexOperation | Represents information for each index operation for each record in DB. | Class | com.orientechnologies.orient.core.tx.OTransactionRealAbstract | Orientdb |