RE: [Springframework-developer] Is it worth keeping BCEL around a t all?

[Kopylenko, D. <dko...@ac...>]

Colin,

Thanks for your answer.

Dmitriy.

-----Original Message-----
From: Colin Sampaleanu [mailto:col...@ex...]=20
Sent: Monday, November 17, 2003 1:38 PM
To: spr...@li...
Cc: 'mpo...@sp...'
Subject: Re: [Springframework-developer] Is it worth keeping BCEL =
around a t
all?


I can actually answer that, to the extent that looking at the existing=20
code in BcelAttributes and BcelAttributeWriter, I don't see anything at =

all in there that you couldn't do with Javassist.

As to this is in any way preferable to using an ASM/cglib combination,=20
that's harder to answer. Javassist would probably be a more direct=20
replacement on a line by line basis, since it's fundamental approach is =

fairly similar; you work with objects representing the bytecode=20
elements. It definitely runs faster than BCEL, and uses less memory, =
but=20
my feeling is that for raw speed and memory usage, ASM's 'visitor'=20
approach would win out.



Kopylenko, Dmitry wrote:

>Mark,
>
>Would it be feasible to create another Attributes impl such as=20
>JavassistAttributes ?
>
>Dmitriy.
>
>-----Original Message-----
>From: Colin Sampaleanu [mailto:col...@ex...]
>Sent: Monday, November 17, 2003 9:26 AM
>To: spr...@li...
>Subject: Re: [Springframework-developer] Is it worth keeping BCEL =
around a
t
>all?
>
>
>We use Javassist at work in an internal project. I think it's great. I
>don't know how it compares in speed to the using cglib on top of ASM=20
>though; we picked Javassist for this applicaiton mainly because it=20
>allows you to write in real Java code which gets parsed and inserted =
at=20
>runtime...
>
>
>
>
>Kopylenko, Dmitry wrote:
>
> =20
>
>>Has anyone had any experience wit Javassist? Any thoughts/comments?
>>
>>Regards,
>>Dmitriy.
>>
>>-----Original Message-----
>>From: j=FCrgen h=F6ller [werk3AT] =
[mailto:jue...@we...]
>>Sent: Sunday, November 16, 2003 3:59 PM
>>To: spr...@li...
>>Subject: Re: [Springframework-developer] Is it worth keeping BCEL=20
>>around at all?
>>
>>
>>+1 - the Hibernate guys typically know what they're doing, so I trust =

>>+them when they switched to ASM :-)
>>
>>________________________________
>>
>>Von: spr...@li... im Auftrag
>>von Alef Arendsen (JTeam)
>>Gesendet: So 16.11.2003 19:17
>>An: spr...@li...
>>Betreff: RE: [Springframework-developer] Is it worth keeping BCEL=20
>>around at all?
>>
>>
>>
>>+1
>>
>>Just get rid of if, What Mark is saying about the side file approach
>>indeed sounds like the best approach...
>>
>>Alef
>>
>>
>>=20
>>
>>   =20
>>
>>>Hi,
>>>
>>>I vote to get rid of BCEL as well.  It always seemed large to me. =20
>>>The ASM api indicates it supports attribute manipulation in the=20
>>>bytecode so I
>>>should be able to port the bcel package to asm.   This
>>>feature bytecode
>>>libraries might not be that important anyway since the default=20
>>>storage
>>>mechanism for attributes will likely switch to side files instead of =

>>>putting it in the bytecode.
>>>
>>>Mark
>>>     =20
>>>




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