new SimpleConsistency()
Used to provide consistency guarantees for read operations.
In general, read operations may be serviced either at a Master or Replica
node. When serviced at the Master node, consistency is always absolute. If
absolute consistency is required, ABSOLUTE may be specified to force the
operation to be serviced at the Master. For other types of consistency, when
the operation is serviced at a Replica node, the transaction will not begin
until the consistency policy is satisfied. The Consistency is specified as
an argument to all read operations, for example, get.
Properties:
| Name | Type | Description |
|---|---|---|
ABSOLUTE |
Number | A consistency policy that requires that a transaction be serviced on the Master so that consistency is absolute. |
NONE_REQUIRED |
Number | A consistency policy that lets a transaction on a replica using this policy proceed regardless of the state of the Replica relative to the Master. |
NONE_REQUIRED_NO_MASTER |
Number | A consistency policy that requires that a read operation be serviced on a replica; never the Master. |