public void dispose()
{
// clean up
OwnershipDataWriter.Dispose(msft, msftHandle);
OwnershipDataWriter.UnregisterInstance(msft, msftHandle);
ReturnCode status = mgr.getPublisher().DeleteDataWriter(OwnershipDataWriter);
ErrorHandler.checkStatus(status, "Publisher.DeleteDataWriter");
mgr.deletePublisher();
mgr.deleteTopic();
mgr.deleteParticipant();
}
static void Main(string[] args)
{
DDSEntityManager mgr = new DDSEntityManager("QueryCondition");
String partitionName = "QueryCondition example";
// create Domain Participant
mgr.createParticipant(partitionName);
// create Type
StockTypeSupport msgTS = new StockTypeSupport();
mgr.registerType(msgTS);
// create Topic
mgr.createTopic("StockTrackerExclusive");
// create Publisher
mgr.createPublisher();
// create DataWriter
mgr.createWriter();
// Publish Events
IDataWriter dwriter = mgr.getWriter();
StockDataWriter QueryConditionDataWriter = dwriter as StockDataWriter;
Stock geStock = new Stock();
Stock msftStock = new Stock();
ReturnCode writeStatus;
geStock.ticker = "GE";
geStock.price = 12.00f;
msftStock.ticker = "MSFT";
msftStock.price = 25.00f;
// Register Instances
InstanceHandle geHandle = QueryConditionDataWriter.RegisterInstance(geStock);
ErrorHandler.checkHandle(geHandle, "DataWriter.RegisterInstance (GE)");
InstanceHandle msHandle = QueryConditionDataWriter.RegisterInstance(msftStock);
ErrorHandler.checkHandle(msHandle, "DataWriter.RegisterInstance (MSFT)");
for (int i = 0; i < 20; i++)
{
geStock.price += 0.5f;
msftStock.price += 1.5f;
writeStatus = QueryConditionDataWriter.Write(geStock, InstanceHandle.Nil);
ErrorHandler.checkStatus(writeStatus, "StockDataWriter.Write");
writeStatus = QueryConditionDataWriter.Write(msftStock, InstanceHandle.Nil);
ErrorHandler.checkStatus(writeStatus, "StockDataWriter.Write");
Thread.Sleep(100);
Console.WriteLine("GE : {0} MSFT {1}", String.Format("{0:0.#}", geStock.price),
String.Format("{0:0.#}", msftStock.price));
}
geStock.price = -1.0f;
msftStock.price = -1.0f;
// Write samples
writeStatus = QueryConditionDataWriter.Write(geStock, InstanceHandle.Nil);
ErrorHandler.checkStatus(writeStatus, "StockDataWriter.Write (GE)");
writeStatus = QueryConditionDataWriter.Write(msftStock, InstanceHandle.Nil);
ErrorHandler.checkStatus(writeStatus, "StockDataWriter.Write (MS)");
// Dispose Instances
writeStatus = QueryConditionDataWriter.Dispose(geStock, geHandle);
ErrorHandler.checkStatus(writeStatus, "StockDataWriter.Dispose (GE)");
writeStatus = QueryConditionDataWriter.Dispose(msftStock, msHandle);
ErrorHandler.checkStatus(writeStatus, "StockDataWriter.Dispose (MS)");
// Unregister Instances
writeStatus = QueryConditionDataWriter.UnregisterInstance(geStock, geHandle);
ErrorHandler.checkStatus(writeStatus, "StockDataWriter.UnregisterInstance (GE)");
writeStatus = QueryConditionDataWriter.UnregisterInstance(msftStock, msHandle);
ErrorHandler.checkStatus(writeStatus, "StockDataWriter.UnregisterInstance(MS)");
// Clean up
mgr.getPublisher().DeleteDataWriter(QueryConditionDataWriter);
mgr.deletePublisher();
mgr.deleteTopic();
mgr.deleteParticipant();
}
