yes u r correct .. i m useing the static function to access the function of singleton calss .. but it is been garbage collected as the referecne to the calss object falles weak ... now i have 2 ques .. (1) is there a way by which solve this problem .without changing the way to access the class ? ...that is changing the code of singleton class but not chaning the code of any other calss .. (2) if yes then how ?
devashish On Thu, 18 Mar 2004 Sachin Hejip wrote : >Correct me if I am wrong here but it will get garbage collected if the class >loader that loaded this class is going to get garbage collected and none of >the classes it refers to are reachable. >Btw, I think that is what your problem is. That your class is being loaded >by some other class loader. (is it an application server that you are >running your code in?) > >Regards >Sachin >----- Original Message ----- > From: "Bill Littman" <[EMAIL PROTECTED]> >To: "devashish bajpai" <[EMAIL PROTECTED]> >Cc: <[EMAIL PROTECTED]> >Sent: Thursday, March 18, 2004 7:03 PM >Subject: RE: RE: (no subject) > > >Devashish- > >I may have misunderstood what you are saying, but the private static >LogManager object is not being Garbage Collected. There is a reference >to it throughout the life of your program, so it will never be GC'ed. > >Hope this helps. > >-Bill Littman > > >-----Original Message----- > From: devashish bajpai [mailto:[EMAIL PROTECTED] >Sent: Thursday, March 18, 2004 7:06 AM >To: Bill Littman >Cc: [EMAIL PROTECTED] >Subject: Re: RE: (no subject) > > >i dont think that the problem is only of synchronisation . The problem >is with Garbage Collection that collects the object as i use the >SingeTon object without reference(see at the bottom how i m using it ) . >thus Garbage Collection is taking place ...what can i do to keep the >code of my project unchanged .. >Devashish Bajpai > >On Thu, 18 Mar 2004 Bill Littman wrote : > >Or you could do this: > > > >static private LogManager sm_instance = new LogManager( System.out ); > >static public LogManager getInstance() > >{ > > return sm_instance; > >} > > > > > >-Bill > > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of >Radz > > > Sent: Wednesday, March 17, 2004 6:50 AM > > > To: devashish bajpai > > > Cc: [EMAIL PROTECTED] > > > Subject: Re: (no subject) > > > > > > > > > Hi, > > > > > > You could make the getInstance method synchronized > > > which would of > > > course makes the execution of this block slower. Also > > > not sure if it > > > *actually* helps much but you could check out Double > > > checked locking > > > idiom too. > > > > > > -- > > > Radz > > > > > > devashish bajpai wrote: > > > > > > >i have a proble i have made a class SingleTon .. i > > > use it in many places in my project .. but just have > > > relised that the calss is creating more intances > > > ...the code is as following .... > > > > > > > > > > > >public class LogManager > > > > { > > > > private java.io.PrintStream m_out; > > > > > > > > private LogManager( PrintStream out ) > > > > { > > > > m_out = out; > > > > } > > > > > > > > public void log( String msg ) > > > > { > > > > System.out.println( msg ); > > > > } > > > > static private LogManager sm_instance; > > > > static public LogManager getInstance() > > > > { > > > > if ( sm_instance == null ) > > > > sm_instance = new LogManager( System.out > > > ); > > > > return sm_instance; > > > > } > > > > } > > > > > > > >and using it like this ... > > > > > > > >LogManager.getInstance().log( "some message" ); > > > > > > > > > > > >what sud i do ?? > > > > > > > > > > > > > > > > > > __________________________________ > > > Do you Yahoo!? > > > Yahoo! Mail - More reliable, more storage, less spam > > > http://mail.yahoo.com > > > _______________________________________________ > > > Swing mailing list > > > [EMAIL PROTECTED] > > > http://eos.dk/mailman/listinfo/swing > > > > > > > >_______________________________________________ >Swing mailing list >[EMAIL PROTECTED] >http://eos.dk/mailman/listinfo/swing > > >_______________________________________________ >Swing mailing list >[EMAIL PROTECTED] >http://eos.dk/mailman/listinfo/swing
