public SourceSignalMapBean GetMappedSignal(String sourceType, String sourceName )
{
String sql = string.Format("SELECT * FROM {0} WHERE {1} = ? AND {2} = ?",
SourceSignalMapBean._TABLE_NAME,
SourceSignalMapBean._SOURCE_TYPE,
SourceSignalMapBean._SOURCE_NAME);
OleDbParameter[] dbParams = { CreateParameter(SourceSignalMapBean._SOURCE_TYPE, sourceType), CreateParameter(SourceSignalMapBean._SOURCE_NAME, sourceName) };
return CreateBean<SourceSignalMapBean>(sql, dbParams);
}