Re: different try-finally approach

Lew <>
Tue, 04 Aug 2009 09:26:57 -0400
Pitch wrote:

In article <h588io$aq6$>,

Pitch wrote:

In both situations constructor is allowed to fail. But in "java [sic] way" [sic] if
constructor fails, the close() statement is never called, so it's pretty
much the same thing, right?

Neither way is a particularly "Java" way.

I guess the bottom line is wheather you'll use internal catch or an
external one. I prefer the external ones, or even dividing the code
between methods.

I prefer:

  public void doSomething()
      // throws [MyResource|App]Exception
   final MyResource res;
     res = new MyResource();
   catch ( MyResourceException exc )
     logger.error( exc );
     return; // or throw exc or new AppException(exc)
   assert res != null;

     // do something with res

This implies res is not going to get null in the last try-block. I think
this is a real possibility if more programmers work on the code so you'd
still need if != null

No, 'res' is guaranteed not to be null.


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