Difference between accessorIterator, iterator and methodIterator

Question

I'm new to ADF BC and I'm trying to add an accessorIterator to my bindings.

However, I'm getting the following error message:

I'd like to know what's the difference between Accessor Iterator, Method Iterator and Iterator. I've been reading lots of documentation on ADF BC and I can't seem to find any explanation on the different iterators.

Thanks

Answer 1

It kinda self-explanatory.

Quoting documentation:

Iterator: Iterates over the data items of a collection.

Method iterator: Iterates the results returned from a method. A method iterator is always related to a method action binding, which creates the binding to the actual method to be invoked. The method action binding is what encapsulates the details about how to invoke the method and what parameters (if any) the method is expecting. The method iterator binding handles iterating over the return from that method.

Accessor iterator: Iterates over detail collections returned by accessor methods. Accessor iterators are always related to a master iterator, which is a method iterator. The accessor iterator returns the detail objects related to the current object in the master (or method) iterator

In most cases you need Iterator to work with your bc's data.