public ConventionBasedCommitProjecter(ProjectorBase projector, IDbService dbService, ConventionBasedEventDispatcher dispatcher)
{
_projector = projector;
_dbService = dbService;
_dispatcher = dispatcher;
_rnd = new Random();
}
private static object GetProjectorParams(ProjectorBase projector)
{
return(new {
ProjectorId = projector.ProjectorId,
ProjectorName = projector.GetType().Name,
LastCheckpointToken = projector.Checkpoint.Get()
});
}
/// <summary>
/// Persists the projector's current checkpoint in the db (in scope of tx)
/// </summary>
/// <param name="projector"></param>
/// <param name="tx"></param>
public static void PersistProjectorCheckpoint(this ProjectorBase projector, IDbTransaction tx)
{
var sqlParams = GetProjectorParams(projector);
tx.Connection.Execute(SqlPersistProjectorState, sqlParams, tx);
}
/// <summary>
/// Gets the uniqueprojectorId of a projector
/// </summary>
/// <param name="projector"></param>
/// <exception cref="ArgumentException">Thrown if the attribute is mssing</exception>
/// <returns></returns>
public static int GetProjectorId(this ProjectorBase projector)
{
return(GetProjectorId(projector.GetType()));
}
/// <summary>
/// Persists the projector's current checkpoint in the db (no tx)
/// </summary>
/// <param name="projector"></param>
/// <param name="conn"></param>
public static void PersistProjectorCheckpoint(this ProjectorBase projector, IDbConnection conn)
{
var sqlParams = GetProjectorParams(projector);
conn.Execute(SqlPersistProjectorState, sqlParams);
}