Rudolf,
Yup your right, that might be an even better solution.
Thanks
On 2/6/06, Rudolf Baloun <[EMAIL PROTECTED]> wrote:
>
> I think that you got no tapestry problem.
> You could do it like your discribed it or add an if-condition, to
> catch the other state:
>
> if(this.quatation != null){
> // compare the quatation
> } else {
> // do nothing
> }
>
> It depends on your business-logic...
>
>
> Izak Wessels wrote:
>
> >Hey Stijn,
> >
> >thanks for you reply. here is the code is snippet of my compareTo()
> method :
> >
> > private Quotation_IF quotation;
> > private SupplierProduct_IF supplierProduct;
> >
> > /**
> > *
> > */
> >
> >
> > public int compareTo(Object object){
> >
> > log.debug("compareTo Initiated");
> >
> > if(!(object instanceof QuotationProduct_IF)) {
> > throw new ClassCastException();
> > }
> >
> > final QuotationProduct_IF quotationProduct =
> >(QuotationProduct_IF)object;
> > final int EQUAL = 0;
> >
> > //this optimization is usually worthwhile, and can
> > //always be added
> > if ( this == quotationProduct ) return EQUAL;
> >
> > //objects, including type-safe enums, follow this form
> > //note that null objects will throw an exception here
> >196 --> int comparison = this.quotation.compareTo(
> >quotationProduct.getQuotation());
> > if ( comparison != EQUAL ) return comparison;
> > comparison = this.supplierProduct.compareTo(
> >quotationProduct.getSupplierProduct());
> > if ( comparison != EQUAL ) return comparison;
> >
> > return EQUAL;
> > }
> >
> >Ahhh, I just realized that at this point, quotation is actually null
> since
> >the quotation hasn't yet
> >been saved to the database at this point. I probably need to save the
> >quotation in the database,
> >return the id and then set the quotation as my Application State Object
> so
> >that I can access it in my cart,
> >and thus avoid the NullPointer exception.
> >
> >What you think?
> >
> >-- Izak
> >
> >
> >On 2/6/06, Stijn Christiaens <[EMAIL PROTECTED]> wrote:
> >
> >
> >>Hello Izak,
> >>
> >>could it be that you just have a bug in your compareTo method.
> >>This method is called when you use a TreeMap, but not when you use an
> >>ArrayList.
> >>Try looking at line 196 of QuotationProduct. Your problem should be on
> >>that line.
> >>
> >>Ciao,
> >>
> >>Stijn
> >>
> >>On Mon, 2006-02-06 at 10:54 +0200, Izak Wessels wrote:
> >>
> >>
> >>>java.lang.NullPointerException
> >>>Stack Trace:
> >>>
> >>> *
> >>>net.pokkie.jupiter.model.quotationproduct.QuotationProduct.compareTo(
> >>>QuotationProduct.java:196)
> >>> * java.util.TreeMap.compare(TreeMap.java:1093)
> >>> * java.util.TreeMap.put(TreeMap.java:465)
> >>> * java.util.TreeSet.add(TreeSet.java:210)
> >>>
> >>>
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> >>
> >>
> >>
> >>
> >
> >
> >
>
>
>
