Groups > comp.lang.java.programmer > #7131

Re: Singleton Pattern

Date	2011-08-15 22:07 -0700
From	Patricia Shanahan <pats@acm.org>
Newsgroups	comp.lang.java.programmer
Subject	Re: Singleton Pattern
References	<3be6e6cf-fa32-4503-9457-b0a1caef8f29@w11g2000vbp.googlegroups.com> <vt-dnf5wc8CJkdrTnZ2dnUVZ_jKdnZ2d@posted.palinacquisition> <j2b8q2$6pq$1@dont-email.me> <d490d89a-2e63-4099-9629-c275f2cf9847@glegroupsg2000goo.googlegroups.com>
Message-ID	<4o6dnfZWI_mOZtTTnZ2dnUVZ_oqdnZ2d@earthlink.com> (permalink)

Show all headers | View raw

On 8/15/2011 7:56 AM, Lew wrote:
...
> Final fields, especially immutable ones, make a lot of useful
> guarantees, and you don't have the field in the first place unless
> it's going to be used at some point anyway.  Just freaking initialize
> it!

Different program runs do different things, so there can be fields that
are used some runs but not others. That is especially the case for
library classes that may be used in many different programs.

However, the initializer for a static field executes during class
initialization. How often does a singleton class get initialized without
its getInstance method ever being called?

Patricia

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

Singleton Pattern "vbhavsar@gmail.com" <vbhavsar@gmail.com> - 2011-08-13 13:56 -0700
  Re: Singleton Pattern markspace <-@.> - 2011-08-13 14:41 -0700
  Re: Singleton Pattern Patricia Shanahan <pats@acm.org> - 2011-08-13 14:48 -0700
  Re: Singleton Pattern Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2011-08-13 16:43 -0700
    Re: Singleton Pattern Ian <m4r35n357@gmail.com> - 2011-08-15 15:00 +0100
      Re: Singleton Pattern Lew <lewbloch@gmail.com> - 2011-08-15 07:56 -0700
        Re: Singleton Pattern Patricia Shanahan <pats@acm.org> - 2011-08-15 22:07 -0700
          Re: Singleton Pattern Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2011-08-16 00:09 -0700
            Re: Singleton Pattern Patricia Shanahan <pats@acm.org> - 2011-08-16 06:15 -0700
              Re: Singleton Pattern Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2011-08-16 06:57 -0700
                Re: Singleton Pattern Patricia Shanahan <pats@acm.org> - 2011-08-16 09:25 -0700
                Re: Singleton Pattern Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2011-08-16 18:10 -0700
  Re: Singleton Pattern Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-08-13 20:56 -0400
    Re: Singleton Pattern Lew <lewbloch@gmail.com> - 2011-08-13 21:12 -0700
  Re: Singleton Pattern Rajeev <rajeev.nospam@gmail.com> - 2011-08-14 06:37 -0700

csiph-web