On 08.02.2006 15:08, Alessandro Vincelli wrote:
The problem occur when i try to insert new row
I receive this error on:
form.save(Elenco);
java.lang.NoSuchMethodException:
org.apache.ojb.broker.util.collections.RemovalAwareCollection.add(w4b.com.cassagest.db.Docuassist)
in my binding definition I have this:
<fb:on-insert-row>
<fb:insert-bean classname="w4b.com.cassagest.db.Docuassist"
addmethod="add"/>
</fb:on-insert-row>
How Can I add object to a Collection from OJB?
The insert is done by reflection. If you search for a method "add" with
Docuassist.class as parameter while Collection has a method "add" with
Object.class you will get the above exception as the parameters are not
upcasted. This is why you probably can not add beans directly to
collections, but I haven't tried it recently. I wrote an application
based on OJB and CForms 1,5 years ago and did the binding with a
delegating method:
binding:
<fb:on-insert-row>
<fb:insert-bean classname="com.ewerk.erak.model.InterestRate"
addmethod="addInterestRate"/>
</fb:on-insert-row>
object:
public void addInterestRate(InterestRate interestRate) {
getInterestRates().add(interestRate);
}
where getInterestRates() returns the collection, i.e. OJB's
RemovalAwareCollection instance.
Jörg
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