Access the RealTime database (RTDB)

To use the RealTime database (RTDB) Object Model API, applications should reference the following assemblies:

• OASySDNA.RealTime.Data.Common.dll — The Common assembly contains structures and functions that are not directly related to the database schema, such as lock type enumerations.

• OASySDNA.RealTime.Data.Model.dll — The Model assembly contains objects representing all tables (in I<TableName> format), records, fields and types in the RTDB.

The following example provides a simple read of the name field of a record in the analog table.

Note: The dataContext class acts as the entry point for both connecting to the RTDB and as a factory for generating objects that represent rows and tables.

using OASySDNA.RealTime.Data.Common;

using OASySDNA.RealTime.Data.Common.HighPerformanceDBWrapper;

using OASySDNA.RealTime.Data.Model;

int analogPtNum = 1;

RealTimeDatabase.Open();

using (var dataContext = new DataContext(new RecordCollectionFactory()))

{

using (var analogTable = dataContext.CollectionFor<IAnalog>())

{

analogTable.Single(analogPtNum,

analog => { Console.WriteLine($"Analog with ptnum {analogPtNum} name is {analog.Name}"); },

LockType.SAFE_READ, LockType.SAFE_READ);

}

}

RealTimeDatabase.Close();