| MapperInsertIfNotExistsAsync Method | 
| Name | Description | |
|---|---|---|
| InsertIfNotExistsAsyncT(T, CqlQueryOptions) | 
            Inserts the specified POCO in Cassandra, if not exists.
             Returns information whether it was applied or not. If it was not applied, it returns details of the existing values.  | |
| InsertIfNotExistsAsyncT(T, Boolean, CqlQueryOptions) | 
            Inserts the specified POCO in Cassandra, if not exists.
              | |
| InsertIfNotExistsAsyncT(T, Boolean, NullableInt32, CqlQueryOptions) | 
            Inserts the specified POCO in Cassandra, if not exists.
              |