private IDataSetAdapter CreateDataSetAdapter(dataSetAdapter dsa)
{
IDbDataAdapter currentDbDataAdapter =
(IDbDataAdapter)Activator.CreateInstance(_provider.DataAdapterObjectType);
IDataSetAdapter currentDataSetAdapter =
new DataSetAdapter(dsa.name, currentDbDataAdapter, _dataSource);
currentDataSetAdapter.SelectCommand = CreateDataCommand(dsa.selectCommand);
if(dsa.insertCommand != null)
currentDataSetAdapter.InsertCommand = CreateDataCommand(dsa.insertCommand);
if(dsa.updateCommand != null)
currentDataSetAdapter.UpdateCommand = CreateDataCommand(dsa.updateCommand);
if(dsa.deleteCommand != null)
currentDataSetAdapter.DeleteCommand = CreateDataCommand(dsa.deleteCommand);
if(dsa.tableMappings != null)
{
foreach(tableMapping tm in dsa.tableMappings)
{
DataTableMapping dtm = currentDataSetAdapter.TableMappings.Add(
tm.sourceTable, tm.dataSetTable);
if(tm.columnMappings != null)
{
foreach(columnMapping cm in tm.columnMappings)
dtm.ColumnMappings.Add(cm.sourceColumn, cm.dataSetColumn);
}
}
}
if(dsa.populateCommands)
currentDataSetAdapter.PopulateCommands();
return currentDataSetAdapter;
}
public object Clone()
{
IDbDataAdapter dbDataAdapter = null;
if(_dbDataAdapter is ICloneable)
{
dbDataAdapter = (IDbDataAdapter)((ICloneable)_dbDataAdapter).Clone();
}
else
{
//TO DO: remove duplicate code (the same is also in DataSource)
dbDataAdapter = (IDbDataAdapter)Activator.CreateInstance(
_dataSource.Provider.DataAdapterObjectType);
}
DataSetAdapter newDataSetAdapter = new DataSetAdapter(
_name, dbDataAdapter, _dataSource);
newDataSetAdapter.SelectCommand = (IDataCommand)_selectCommand.Clone();
if(_updateCommand != null)
newDataSetAdapter.UpdateCommand = (IDataCommand)_updateCommand.Clone();
if(_insertCommand != null)
newDataSetAdapter.InsertCommand = (IDataCommand)_insertCommand.Clone();
if(_deleteCommand != null)
newDataSetAdapter.DeleteCommand = (IDataCommand)_deleteCommand.Clone();
return newDataSetAdapter;
}
public IDataSetAdapter CreateDataSetAdapter()
{
if(_templateDataAdapter == null)
throw new DataAccessException(ResourceStringLoader.GetResourceString(
"dataadapters_not_supported"));
IDbDataAdapter dbDataAdapter = null;
if(_templateDataAdapter is ICloneable)
dbDataAdapter = (IDbDataAdapter)((ICloneable)_templateDataAdapter).Clone();
else
dbDataAdapter = (IDbDataAdapter)Activator.CreateInstance(
_provider.DataAdapterObjectType);
IDataSetAdapter dataSetAdapter = new DataSetAdapter(dbDataAdapter, this);
return dataSetAdapter;
}
