Re: Start thread in constructor
tzvika.barenholz@gmail.com wrote:
On Jan 29, 9:04 am, Philipp <sicsic...@freesurf.ch> wrote:
Hello,
In the book "Java Threads" 3rd ed. by Oaks and Wong, we find the
following code example (p. 164):
public class FibonacciProducer implements Runable {
// <snip> declaration of queue and thr as members
public FibonacciProducer (BlockingQueue<Integer> q){
queue = q;
thr = new Thread(this);
thr.start();
}
public void run(){
// snip
}
}
I read somewhere that it is bad practice to start a thread in the
constructor because this may publish the this pointer before the
constructor has returned. Is this not true in this case? Or should we
better code the above with a factory?
Thanks for your answers
Phil
It seems to me that you're right; the this reference should not be
published before construction is complete.
Agreed. Publishing the 'this' reference from the constructor via the Thread
was a mistake.
--
Lew
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