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Re: simple java question with WOComponent sub-classes
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Re: simple java question with WOComponent sub-classes


  • Subject: Re: simple java question with WOComponent sub-classes
  • From: David Aspinall <email@hidden>
  • Date: Thu, 6 Jul 2006 22:51:32 -0400

Make an interface called SecureConponentInterface (or whatever) and then

public class SecureComponent extends WOComponent implements SecureConponentInterface
{


public class ReviewTrans extends WOLongResponsePage implements SecureConponentInterface
{


The sucks part is having to duplicate the implementation (assuming there is implementation in SecureComponent). You could handle this by using a utility class with static methods to perform those methods, just remember to pass the context and the request.

Just a thought.
David


On 6-Jul-06, at 3:50 PM, Chuck Hill wrote:


On Jul 6, 2006, at 11:18 AM, Baiss Eric Magnusson wrote:


I have a class public class SecureComponent extends WOComponent {

I have
	public class ReviewTrans extends SecureComponent {

I want it to be
public class ReviewTrans extends SecureComponent {
where <SecureComponent> is a sub-class of WOLongResponsePage, not WOComponent, but only for this one class.


NOTE: WOLongResponsePage is a sub-class of WOComponent.

All I can see to do is duplicate the code in SecureComponent and create another class <SecureComponentLong>.

That is the expedient way as Java does not support multiple inheritance. The only other option that I can think of is AOP (http://www.stepwise.com/Articles/AspectJ/). But that is overkill for the small amount of duplication you are talking about.


Chuck

--
Coming sometime... - an introduction to web applications using WebObjects and Xcode http://www.global-village.net/wointro


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