Thread: Getting information from API Class into main body....

Hi,

I'm new to JAVA and busy working with an API and I've hit a brick wall. What I want to do is extract information from an extended API class into the main body of the program. So, the extended class looks like this:

 
class Ticker extends FXRateEvent
		{
			// No key set and no match implemented; this event matches all RateEventInfos
 
			public void handle(FXEventInfo EI, FXEventManager EM)
			{
				//Just print the tick
				FXRateEventInfo REI = (FXRateEventInfo) EI;
				System.out.println(REI.getTick()+ ":"+ REI.getTimestamp());
//				FXPair changedPair = REI.getPair();
//				System.out.println(changedPair);
 
			}
 
		}

Now I can call the class like so and it prints all the information:

                Ticker ticker = new Ticker();
		try { fxgame.getRateTable().getEventManager().add(ticker); }
		catch (SessionException e) { fxgame.logout(); System.exit(1); }

The problem is it's the class that doing the printing. In particular I am after the information in the line: FXPair changedPair = REI.getPair();

I want to use that information in the Main body of the code. Can anyone tell me how to get that out of the class? I know I'm supposed to do a method and then call it, but all my attempts so far have failed.

Can you show me that in code please? Where exactly do I save the reference ticker ? As far as I know I've already saved the data as : FXPair changedPair = REI.getPair();

Now I need to call:

ticker.changedPair();

Or so I thought, but it fails.

So I need to create a new class ticker to extend the Ticker class ?

Yes, so I created a new Object ticker from Ticker and then I do this:

try { fxgame.getRateTable().getEventManager().add(ticker); }
		catch (SessionException e) { fxgame.logout(); System.exit(1); }

At this point the ticker object jumps into action and prints all the information as specified in Ticker. But I don't want to print it. I want to use the value of :

FXPair changedPair = REI.getPair();

I need to get that value out of the ticker object. It's encapsulated in there, so I can't access it.

Basically I want to do is:

String pairTocompare = ticker.changedPair();

That is the program at this point. I extend one event manager and print the values it gives.

It doesn't work. To do that changedPair needs to be a method. All my attempts at making it a method and then calling it has failed. The original Class is a void class and I'm looking for a return value.

Man, sadly I'd need to add passwords and account numbers to do that, as this information is called over via API. Be like giving you access to my bank account.

Not only that, I'd have to give you the entire API which I have signed an agreement to not do. So it's not possible really.

That's correct. This is a Program Interface. Look, as far as I know the solution should be something like this:

 
		class Ticker extends FXRateEvent
		{
			// No key set and no match implemented; this event matches all RateEventInfos
 
			public void handle(FXEventInfo EI, FXEventManager EM)
			{
				//Just print the tick
				FXRateEventInfo REI = (FXRateEventInfo) EI;
				System.out.println(REI.getTick()+ ":"+ REI.getTimestamp());
//				FXPair changedPair = REI.getPair();
//				System.out.println(changedPair);
 
			}
 
			public FXPair changedPair()
                        {
				FXPair changedPair = REI.getPair();	
			}
 
		}
 
		//all rate events
 
		Ticker ticker = new Ticker().changedPair();

But that fails...

The compiler has several problems with it.

First it doesn't recognise REI. Then it doesn't like the type of the object.

Screen Shot 2014-05-22 at 9.13.44 AM.jpg

This also fails:

class Ticker extends FXRateEvent
		{
			// No key set and no match implemented; this event matches all RateEventInfos
 
			public void handle(FXEventInfo EI, FXEventManager EM)
			{
				//Just print the tick
				FXRateEventInfo REI = (FXRateEventInfo) EI;
				System.out.println(REI.getTick()+ ":"+ REI.getTimestamp());
//				FXPair changedPair = REI.getPair();
//				System.out.println(changedPair);
 
			}
 
			public FXPair changedPair()
			{
				FXPair changedPair = REI.getPair();	
				return changedPair;
			}
 
		}
 
		//all rate events
 
		FXPair alpha = ticker.changedPair();

In the class FXRateEvent which is from the API and extended as ticker, point is I used it 3 lines before succesfully and it's still in the same class.

--- Update ---

1. REI cannot be resolved.
2. Ticker cannot be resolved.

Thanks for the attempt to help Norm. Unfortunately I can't. As I pointed out you'd need the API. I can't give it to you. I've taken enough of your time already.

Thanks again.