Azavea.Open.DAO.Memory.MemoryDaLayer.GetCount C# (CSharp) Method

MemoryDaLayer Class Documentation Show file Open project: azavea/net-dao

GetCount() public method

Gets a count of records for the given criteria.

public GetCount ( ITransaction transaction, ClassMapping mapping, DaoCriteria crit ) : int
transaction	ITransaction	The transaction to do this as part of.
mapping	ClassMapping	The mapping of the table for which to build the query string.
crit	Azavea.Open.DAO.Criteria.DaoCriteria	The criteria to use for "where" comparisons.
return	int

        public override int GetCount(ITransaction transaction, ClassMapping mapping, DaoCriteria crit)
        {
            IDictionary<string, MemoryObject> table = GetTable(mapping);
            int retVal = 0;
            lock (table)
            {
                MemoryDataReader reader = new MemoryDataReader(this, mapping, crit,
                                                               table.Values.GetEnumerator());
                while (reader.Read())
                {
                    retVal++;
                }
            }
            return retVal;
        }