|
public ExecuteQuery ( ITransaction transaction, ClassMapping mapping, IDaQuery query, DataReaderDelegate invokeMe, |
||
| transaction | ITransaction | Should be null, transactions are not supported. |
| mapping | ClassMapping | Class mapping for the table we're querying against. Optional, /// but not all columns may be properly typed if it is null. |
| query | IDaQuery | The query to execute, should have come from CreateQuery. |
| invokeMe | DataReaderDelegate | The method to invoke with the IDataReader results. |
| parameters | A hashtable containing any values that need to be persisted through invoked method. /// The list of objects from the query will be placed here. | |
| return | void | |
public override void ExecuteQuery(ITransaction transaction, ClassMapping mapping, IDaQuery query, DataReaderDelegate invokeMe, Hashtable parameters)
{
switch (_connDesc.Type)
{
case CsvConnectionType.Directory:
case CsvConnectionType.FileName:
case CsvConnectionType.Reader:
// These are OK.
break;
default:
throw new LoggingException("Connection does not support querying: " + _connDesc);
}
CsvDataReader reader = new CsvDataReader(this, mapping, ((UnqueryableQuery)query).Criteria);
try
{
invokeMe.Invoke(parameters, reader);
}
finally
{
reader.Close();
}
}
