Thanks...
Yes, this way I know but is it advisable to use this, when you need to
do this job mutiple no of times when you're
generating a single page on a website for a single user ? Aren't there
any libraries that accomplish this in a much better way.
I guess I require something that is superfast & reasonably efficient as well.
My use case is a website and this job needs to be done multiple no of
times and for several pages, on the website.
On Sun, Feb 20, 2011 at 2:13 AM, <gaiji...@gmail.com> wrote:
> It would be best if you can code the 2nd function yourself. That way you can
> receive what 1st function returns.
>
> Internally you could use:
>
> void foo(List<Column<String, String> list) {
> for(Column<String, String> column : list) {
> String columnName = column.getName(); // I assume there is a getter for this
> field
> // more code
> }
> }
>
> If that is not an option, then you can do exactly the same but in the "more
> code" part, add the String to a List and after the loop, return it.
>
> The first option is better because you accomplish you goal in time
> proportional to the size of the list, while in the second it is proportional
> to the square of the size. If you have a lot of entries that may be
> significant.
>
> Enviado desde BlackBerry® de COMCEL S.A.
>
> ________________________________
> From: Raj <rajkumar....@gmail.com>
> Sender: java-ee-j2ee-programming-with-passion@googlegroups.com
> Date: Sat, 19 Feb 2011 04:02:05 -0800 (PST)
> To: <java-ee-j2ee-programming-with-passion@googlegroups.com>
> ReplyTo: rajkumar....@gmail.com
> Subject: [java ee programming] Java Collections List : Converting from List
> '<Column <String1, String2>>' to 'List <String1>'
>
> I have a function that returns a list like this:-
>
> List <Column <String1, String2>>
>
> Next I want to pass this list to a 2nd function, but 2nd function just needs
> a list which contains only 1st part (string1) of the Column(s) of the above
> list.
>
> So I want pass just this list to 2nd function:-
>
> List <String1>
>
> What would be the best way to do this ??
>
> [my use case: Both the functions are from a library that I use to access
> database(Cassandra) for a web application. 1st function gives me a list of
> all columns which has two parts name(String1) and value(String2). So 1st
> function gives me a list of all columns(each of which has two strings) then
> I just need to use the list of column names to supply it to 2nd function
> that'll query the DB for those columns.]
>
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