public method IO2GEachRowListener.onEachRow

Brief

Processes iteration through rows of a table.

Declaration
C++
virtual void  onEachRow (const char * rowID, IO2GRow * rowData) = 0

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.getTableType method. After that, you must cast the parameter to an appropriate class. For example, for a row of the Accounts table, use the IO2GAccountTableRow class. The complete list of the classes is shown below.

Details

Table name

rowID

Cast rowData to

Casting syntax

Accounts

AccountID

IO2GAccountTableRow

IO2GAccountTableRow *row = (IO2GAccountTableRow *)(rowData);

Offers

OfferID

IO2GOfferTableRow

IO2GOfferTableRow *row = (IO2GOfferTableRow *)(rowData);

Trades

TradeID

IO2GTradeTableRow

IO2GTradeTableRow *row = (IO2GTradeTableRow *)(rowData);

ClosedTrades

TradeID

IO2GClosedTradeTableRow

IO2GClosedTradeTableRow *row = (IO2GClosedTradeTableRow *)(rowData);

Orders

OrderID

IO2GOrderTableRow

IO2GOrderTableRow *row = (IO2GOrderTableRow *)(rowData);

Messages

MsgID

IO2GMessageTableRow

IO2GMessageTableRow *row = (IO2GMessageTableRow *)(rowData);

Summary

OfferID

IO2GSummaryTableRow

IO2GSummaryTableRow *row = (IO2GSummaryTableRow *)(rowData);

To get notifications about iteration through each row of a specific table, an instance of the class implementing the IO2GEachRowListener interface must be passed to the IO2GTable.forEachRow method as an argument. For example, if you want to get notifications about iteration through the rows of the Trades table, write the following line:

tradesTable->forEachRow(forEachListener);

For the method implementation details, see the example below.

Example

Process iteration through the rows of the Trades table [hide]

// Create session which uses table manager
mSession = ŅO2GTransport::createSession();
mSession->useTableManager(Yes, NULL);
 
//...
// After the login, get instances of the table manager and Trades table
O2G2Ptr<IO2GTableManager> tableManager = mSession->getTableManager();
O2G2Ptr<IO2GTradesTable> tradesTable = (IO2GTradesTable *)tableManager->getTable(Trades);
 
// ...
// Iterate through the rows of the Trades table
O2G2Ptr<EachRowListener> eachRowListener = new EachRowListener();
tradesTable->forEachRow(eachRowListener);
 
 
// Implementation of IO2GEachRowListener interface public method onEachRow
void EachRowListener::onEachRow(const char * rowID, IO2GRow * rowData)
{
    O2G2Ptr<IO2GTradeTableRow> trade = (IO2GTradeTableRow *)(rowData);
    std::cout << "Iterating through the row " << rowID << std::endl;
    std::cout << "TradeID: " << trade->getTradeID() <<
                 " Close = " << trade->getClose() << std::endl;
}

Declared in IO2GEachRowListener

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