mirror of https://gitee.com/bigwinds/arangodb
1.3 KiB
1.3 KiB
@brief executes a transaction
db._executeTransaction(object)
Executes a server-side transaction, as specified by object.
object must have the following attributes:
- collections: a sub-object that defines which collections will be
used in the transaction. collections can have these attributes:
- read: a single collection or a list of collections that will be used in the transaction in read-only mode
- write: a single collection or a list of collections that will be used in the transaction in write or read mode.
- action: a Javascript function or a string with Javascript code containing all the instructions to be executed inside the transaction. If the code runs through successfully, the transaction will be committed at the end. If the code throws an exception, the transaction will be rolled back and all database operations will be rolled back.
Additionally, object can have the following optional attributes:
- waitForSync: boolean flag indicating whether the transaction is forced to be synchronous.
- lockTimeout: a numeric value that can be used to set a timeout for waiting on collection locks. If not specified, a default value will be used. Setting lockTimeout to 0 will make ArangoDB not time out waiting for a lock.
- params: optional arguments passed to the function specified in action.