// Simple interactive method using IRIS native API to consult the data structure populated in storeAirfare()
public static void checkAirfare(IRIS irisNative)
{
// Prompt for input
Console.Write("Enter departure airport: (e.g. BOS)");
String fromAirport = Console.ReadLine();
Console.Write("Enter destination airport: (e.g. AUS)");
String toAirport = Console.ReadLine();
// ^airport(from, to) = distance
Console.WriteLine("");
Console.WriteLine("The distance in miles between " + fromAirport + " and " + toAirport +
" is: " + irisNative.GetString("^airport", fromAirport, toAirport) + ".");
// Now loop through routes: ^airport(from, to, flight) = fare
int isDefined = irisNative.IsDefined("^airport", fromAirport, toAirport);
if (isDefined == 11)
{
Console.WriteLine("The following routes exist for this path:");
IRISIterator iterator = irisNative.GetIRISIterator("^airport", fromAirport, toAirport);
while (iterator.MoveNext())
{
String fare = (String)iterator.Current;
String flightNumber = (String)iterator.CurrentSubscript;
Console.WriteLine(" - " + flightNumber + ": " + fare + " USD");
}
}
else
{
Console.WriteLine("No routes exist for this path.");
}
}
public static void PrintNodes(IRIS irisNative, String globalName)
{
Console.WriteLine("Iterating over " + globalName + " globals");
// Iterate over all nodes forwards
IRISIterator iter = irisNative.GetIRISIterator(globalName);
Console.WriteLine("walk forwards");
foreach (var v in iter)
{
Console.WriteLine("subscript=" + iter.CurrentSubscript + ", value=" + iter.Current);
}
}
public static void Main(String[] args)
{
try
{
// open connection to InterSystems IRIS instance using connection string
IRISConnection conn = new IRISConnection();
// edit this ConnectionString to match your environment
conn.ConnectionString = "Server=localhost; Port=51773; Namespace=User; Password=SYS; User ID=_system; SharedMemory=false; logfile=./dbnative.log";
conn.Open();
// create IRIS Native object
IRIS iris = IRIS.CreateIRIS(conn);
Console.WriteLine("[1. Setting and getting a global]");
// setting and getting a global
// ObjectScript equivalent: set ^testglobal("1") = 8888
iris.Set(8888, "^testglobal", "1");
// ObjectScript equivalent: set globalValue = $get(^testglobal("1"))
Int16?globalValue = iris.GetInt16("^testglobal", "1");
Console.WriteLine("The value of ^testglobal(1) is " + globalValue);
Console.WriteLine();
Console.WriteLine("[2. Iterating over a global]");
// modify global to iterate over
// ObjectScript equivalent: set ^testglobal("1") = 8888
// ObjectScript equivalent: set ^testglobal("2") = 9999
iris.Set(8888, "^testglobal", "1");
iris.Set(9999, "^testglobal", "2");
// iterate over all nodes forwards
Console.WriteLine("walk forwards");
IRISIterator subscriptIter = iris.GetIRISIterator("^testglobal");
foreach (var node in subscriptIter)
{
Console.WriteLine("subscript=" + subscriptIter.CurrentSubscript + ", value=" + node);
}
Console.WriteLine();
Console.WriteLine("[3. Calling a class method]");
// calling a class method
// ObjectScript equivalent: set returnValue = ##class(%Library.Utility).Date(5)
String returnValue = iris.ClassMethodString("%Library.Utility", "Date", 5);
Console.WriteLine(returnValue);
Console.WriteLine();
// close IRIS object and connection
iris.Close();
conn.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
