On 13 April 2010 17:25, Ryan Sun <ryansun81@xxxxxxxxx> wrote: > this is a class for corntab job, and the validation is very simple, > just check if the status of user is active when cron job runs, if not, > throws an exception, other developers won't want to overwrite this > validation. > which method of user class will be called is configurable via website > backed page(we write the name of methods directly in to schedule > table). > Using private methods will solve the problem but since we write public > methods for all the other cron classes, I just want to keep the style > to make less confusion. > > On Tue, Apr 13, 2010 at 12:11 PM, Nathan Rixham <nrixham@xxxxxxxxx> wrote: >> Ryan Sun wrote: >>> I'm writing an abstract parent class which only contain a validate >>> method, other developers will extend this class and add many new >>> public methods, every new methods will need to perform a validate >>> first. Won't it be good if validate get called automatically before >>> every method call so that they don't have to write more code and they >>> won't miss this validate? >> >> This may call for a back to roots approach, what exactly are you trying >> to accomplish, as in: what is the validation doing? >> >> perhaps if we see the full picture, we can recommend another perhaps >> more suited approach to the full thing, feel free to post the full code >> if you want / can, the more info the better! >> >> Regards, >> >> Nathan >> > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > Would this be better ... abstract class baseValidate() { final public function __construct($params) { // Determine if user is active. // If OK, then call abstract function postConstruct($params) } abstract function postConstruct($params); } You can't override the constructor, so the validation will always be called. The developer's can implement their own postConstruct as if they where extending __construct. -- ----- Richard Quadling "Standing on the shoulders of some very clever giants!" EE : http://www.experts-exchange.com/M_248814.html EE4Free : http://www.experts-exchange.com/becomeAnExpert.jsp Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731 ZOPA : http://uk.zopa.com/member/RQuadling -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
