RE: [Quickfix-users] Checking that all sessions is connected

[Steve B. <sb...@sm...>]

Hi Lars,
=20
Yes, I didn't realize that was an extra method in QFJ. By concrete
class, I mean the method is
not defined in the Initiator interface, but only in the Initiator
implementations.
=20
QFJ is intended to be backwards compatible with the QuickFIX JNI
wrapper. The two APIs
are not identical since QFJ is a superset of QuickFIX JNI. You can more
forward by changing
a JAR file, but you may or may not be able to move backwards that way
(depending on the
QFJ features you use).=20
=20
This is why I'm concerned about QFJ returning sessions from
getSessions() while JNI is returning=20
session IDs. That breaks the backwards compatibility.
=20
To do what you want using the JNI wrapper, you can get the session IDs
from the initiator
and then get the sessions using Session.lookupSession(SessionID). You
can then check
the sessions individually for connections status.
=20
Steve Bate
Smart Trade Technologies
Phone: +33 4 42 90 03 97
http://www.smart-trade.net/


________________________________

	From: qui...@li...
[mailto:qui...@li...] On Behalf Of
lar...@su...
	Sent: Friday, January 20, 2006 4:12 PM
	To: qui...@li...
	Subject: RE: [Quickfix-users] Checking that all sessions is
connected
=09
=09

	Hmm, is that only in the Quickfix\j Version or how do I find
that function since eclipse can't seem to find that function.

	=20

	When I looked at the source files this is the code of the
initiator in the dll version of the java:

	=20

	    void start() throws ConfigError, RuntimeError;

	    void block() throws ConfigError, RuntimeError;

	    boolean poll() throws ConfigError, RuntimeError;

	    void stop();

	      void stop( boolean force );

	      boolean isLoggedOn();

	    ArrayList getSessions();

	=20

	=20

	Looking at the API for quickfix\j I see that it has both
functions=20

	 boolean isLoggedOn
<file:///D:\stuff\sharestuff\quickfix-1.0.0-beta2-bin\quickfixj\doc\api\
quickfix\Initiator.html#isLoggedOn%28%29> ()=20
	          Checks the logged on status of the initiator's
sessions.=20

	 boolean isLoggedOn
<file:///D:\stuff\sharestuff\quickfix-1.0.0-beta2-bin\quickfixj\doc\api\
quickfix\Initiator.html#isLoggedOn%28quickfix.SessionID%29> (SessionID
<file:///D:\stuff\sharestuff\quickfix-1.0.0-beta2-bin\quickfixj\doc\api\
quickfix\SessionID.html>  session)=20
	          Checks the logged on status of the specified session.

	=20

	=20

	So how do I use this if I'm not using the quickfix\J but still
have to use java? What do you mean by concrete class btw?

	=20

	=20

	 I think I read somewhere that there shouldn't be any difference
between the interface API you used for quickfix dll java version and
quickfix\J, other then you didn't have to load the DLL.=20

	=20

	Lars

	=20

=09
________________________________


	From: qui...@li...
[mailto:qui...@li...] On Behalf Of Steve
Bate
	Sent: den 20 januari 2006 12:35
	To: qui...@li...
	Subject: RE: [Quickfix-users] Checking that all sessions is
connected

	=20

	Hello Lars,

	=20

	From looking at the JNI code it does appear that the initiators
in the JNI wrapper return an

	array of SessionIDs. QFJ returns the actual sessions. This is an
unintentional difference in

	the API.

	=20

	Oren, do you have a preference about whether to return
SessionIDs or Sessions from the

	JNI API? If we want to leave it the way it is in the JNI layer,
I'll need to modify the initiators

	(and acceptors?) in QFJ to return the same data types.=20

	=20

	The initiator concrete classes also have an
isLoggedOn(SessionID) method that is not

	present in the Initiator interface. That might be useful for
your purposes.

	=20

	Steve Bate
	Smart Trade Technologies
	Phone: +33 4 42 90 03 97
	http://www.smart-trade.net/

		=20

	=09
________________________________


		From: qui...@li...
[mailto:qui...@li...] On Behalf Of
lar...@su...
		Sent: Friday, January 20, 2006 11:40 AM
		To: qui...@li...
		Subject: [Quickfix-users] Checking that all sessions is
connected

		I'm using java and both quickfix\J and the regular
native interface. I'm using multiple sessions and are looking on a way
to get info on a specific session in the java environment.=20

		=20

		In the c/c++ environment the initiator/acceptor classes
have both the function getSessions() and getSession(arguments). But the
Java versions only have the getSessions() that returns the SessionID not
the actually session. =20

		=20

		Then my problem is that if I want to know if every
session is connected I for example want to use initiator.isConnected()
to check that every connection is connected or check every connection
separately.=20

		The problem is that the isConnected() return true if any
of the connections is connected and that I havn't found a way to check
that a single connection is connected.

		=20

		Do I have to keep track of logon/logoff myself in java
but not in C/C++

		=20

		Lars