public method IO2GTableListener.onDeleted

Brief

Processes a notification about the row deletion from a table.

Declaration
C#
void  onDeleted (string rowID, O2GRow rowData)

Parameters
rowID

The identifier of a row. The parameter has the value of the row identifier for a specific trading table. For example, for the Accounts table, it has the value of the AccountID field. The complete list of the identifiers is shown below.
rowData

The object representing a row of a table. In order to process the parameter, you need to know what table it belongs to. It can be accomplished by calling the O2GRow.TableType method. After that, you must cast the parameter to an appropriate class. For example, for a row of the Accounts table, use the O2GAccountTableRow class. The complete list of the classes is shown below.

Details

Table name

rowID

Cast rowData to

Casting syntax

Accounts

AccountID

O2GAccountTableRow

O2GAccountTableRow row = (O2GAccountTableRow)(rowData);

Offers

OfferID

O2GOfferTableRow

O2GOfferTableRow row = (O2GOfferTableRow)(rowData);

Trades

TradeID

O2GTradeTableRow

O2GTradeTableRow row = (O2GTradeTableRow)(rowData);

ClosedTrades

TradeID

O2GClosedTradeTableRow

O2GClosedTradeTableRow row = (O2GClosedTradeTableRow)(rowData);

Orders

OrderID

O2GOrderTableRow

O2GOrderTableRow row = (O2GOrderTableRow)(rowData);

Messages

MsgID

O2GMessageTableRow

O2GMessageTableRow row = (O2GMessageTableRow)(rowData);

Summary

OfferID

O2GSummaryTableRow

O2GSummaryTableRow row = (O2GSummaryTableRow)(rowData);

To get notifications about row deletions from a specific table, an instance of the class implementing the IO2GTableListener interface must be subscribed to the Delete operation of this table. It is accomplished by calling the O2GTable.subscribeUpdate method with the O2GTableUpdateType.Delete parameter. For example, if you want to get notifications about the deletions from the Trades table, write the following line:

tradesTable.subscribeUpdate(O2GTableUpdateType.Delete, tableListener);

For the implementation details, please see the example below: Example

Process a notification about deletions from the Trades table [hide]

// Create session which uses table manager
mSession = O2GTransport.createSession();
mSession.useTableManager(O2GTableManagerMode.Yes, null);
 
//...
// After the login, get instances of the table manager and Trades table
O2GTableManager tableManager = mSession.getTableManager();
O2GTradesTable tradesTable = (O2GTradesTable)tableManager.getTable(O2GTableType.Trades);
 
// ...
// Subscribe listener, listen to deletions from the Trades table, unsubscribe listener
TableListener tableListener = new TableListener();
tradesTable.subscribeUpdate(O2GTableUpdateType.Update, tableListener);
Thread.Sleep(1000);
offersTable.unsubscribeUpdate(O2GTableUpdateType.Update, tableListener);

 
// Implementation of IO2GTableListener interface public method onDeleted
public void onDeleted(String rowID, O2GRow rowData) {
    O2GTradeTableRow trade = (O2GTradeTableRow)(rowData);
    Console.WriteLine("Trade information deleted " + rowID);
    Console.WriteLine("TradeID: " + trade.TradeID +
                       " Close = " + trade.Close);
}

Declared in IO2GTableListener

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