"Comba-Riepenhausen Enrique (CO)" wrote:
> I would return them in following format:
>
> public String create questionPanel()
> {
> String returnString = "";
> Table firstTable = new Table();
> Table secondTable = new Table();
> Table thirdTable = new Table();
> .
> .
> .
> Other Objects.....
>
> ....add all objects together
> StringBuffer returnString = new StringBuffer();
> returnString.append( firstTable.toString() );
> returnString.append( secondTable.toString() );
> returnString.append( thirdTable.toString() );
> returnString.append( otherObjects.toString() );
> return (returnString.toString() );
> }
>
> This is an performance issue. if you concatenate the String with +=
> you spend a lot of time in the creation of a new Object every time.
>
> -----Ursprüngliche Nachricht-----
> Von: David Ethell [mailto:[EMAIL PROTECTED]]
> Gesendet: Mittwoch, 21. März 2001 12:38
> An: [EMAIL PROTECTED]
> Betreff: RE: Returning an object containing various HTML objects
>
> Or, write them all as Strings and return a string:
>
> public String create questionPanel()
> {
> String returnString = "";
> Table firstTable = new Table();
> Table secondTable = new Table();
> Table thirdTable = new Table();
> .
> .
> .
> Other Objects.....
>
> ....add all objects together
> returnString += firstTable.toString();
> returnString += secondTable.toString();
> returnString += thirdTable.toString();
> returnString += otherObjects.toString();
> return (returnString);
> }
It is way more efficient to just dump them out to a PrintWriter or an
OutputStream directly then calling toString on them as that is an
incredibly expensive operation. I can't actually think of a good reason
to ever call toString on an element in order to output it.
-stephan
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