I also realized that trees, a.k.a. Composites, were all over the Smalltalk image. After studying the GOF book and the Smalltalk companion, I took the tack of creating an external iterator that provides all the Collection protocols over a Tree, either top down or bottom up order. This proved to be extremely reusable and useful in iterating through trees. I have not tried to extend it to more general object networks but it seems like a logical thing to do.
jlo
-----Original Message----- From: Jerome Garcia [mailto:Jerome.Garcia@wj.com] Sent: Monday, September 21, 1998 6:48 PM To: squeak@cs.uiuc.edu Subject: Does Squeak include a generic node class?
I have not been able to find a generic node class in Squeak. Does Squeak provide a node class similar to the TreeNode class
provided by Dolphin Smalltalk? If not, is there a reason why it should not?
Jerome E. Garcia jegarcia@adventurousmind.com