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Posted to users@tomcat.apache.org by "M. Manna" <ma...@gmail.com> on 2019/12/08 22:10:17 UTC
Design Patterns in Tomcat
Hi All,
A numpty question as its best, but I was trying to summarise the design
patterns used for tomcat. So far I could see the following, but shouldn't
be limited to:
1) Mediator
2) Observer
3) Factory
4) Builder
4) Adapter
Perhaps I missed any confluence link or something that confirms it?
Thanks,
Re: Design Patterns in Tomcat
Posted by "M. Manna" <ma...@gmail.com>.
Chris,
On Mon, 9 Dec 2019 at 17:10, Christopher Schultz <
chris@christopherschultz.net> wrote:
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> Hash: SHA256
>
> M,
>
> On 12/8/19 17:10, M. Manna wrote:
> > Hi All,
> >
> > A numpty question as its best, but I was trying to summarise the
> > design patterns used for tomcat. So far I could see the following,
> > but shouldn't be limited to:
> >
> > 1) Mediator 2) Observer 3) Factory 4) Builder 4) Adapter
> >
> > Perhaps I missed any confluence link or something that confirms
> > it?
>
> Don't forget iterator, interceptor, etc.
>
> We don't bother to track which design patterns are in use in Tomcat.
> Some of them are obvious due to their class names or behavior, but
> there is no documentation about what is being used where.
>
> There is also the problem of having a very large number of named
> design patterns, many of which are variations on a theme. You may see
> code that looks like publish/subscribe and others may call that
> observer/observable, etc. Some patterns are so obvious as to not
> require naming at all (e.g. "State").
>
> If you'd like to hunt through the code and find examples of carious
> patterns and document them -- e.g. in the Wiki -- that would be fine,
> but I don't think any committer is currently interested in such a task.
i guess it’s more or less what I was sexpecting. Let me work on the page
and perhaps I wi also provide 1/2 examples to support it. As long as folks
keep it correct, it should be a good source.
Thanks,
>
>
> - -chris
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Re: Design Patterns in Tomcat
Posted by Christopher Schultz <ch...@christopherschultz.net>.
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Hash: SHA256
M,
On 12/8/19 17:10, M. Manna wrote:
> Hi All,
>
> A numpty question as its best, but I was trying to summarise the
> design patterns used for tomcat. So far I could see the following,
> but shouldn't be limited to:
>
> 1) Mediator 2) Observer 3) Factory 4) Builder 4) Adapter
>
> Perhaps I missed any confluence link or something that confirms
> it?
Don't forget iterator, interceptor, etc.
We don't bother to track which design patterns are in use in Tomcat.
Some of them are obvious due to their class names or behavior, but
there is no documentation about what is being used where.
There is also the problem of having a very large number of named
design patterns, many of which are variations on a theme. You may see
code that looks like publish/subscribe and others may call that
observer/observable, etc. Some patterns are so obvious as to not
require naming at all (e.g. "State").
If you'd like to hunt through the code and find examples of carious
patterns and document them -- e.g. in the Wiki -- that would be fine,
but I don't think any committer is currently interested in such a task.
- -chris
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