Only DTO's bindable to object data providers?

I am tryin to bind the array of a data provider to an array of plain old java objects. The object implements serializable and has getter and setters for all vars and public no-argument constructor. However, the array does not show up in "array" options under properties of the Data provider. This only works if my object is an array of DTO's. Funny enough, I tried renaming one of the dto's and using it and that didn't work.

What are the requirements for objects to be used with the data providers?

[516 byte] By [jay_dawga] at [2007-11-27 11:09:09]