Tutorial Mapping Query

[Jack O'Connor <jo...@bristol.ac.uk>]

Hello again,
I'm working my way through the "Quick Start" guide for Cayenne v1.2.3 
using a MySQL database. I get expected results until I reach the 
following page, and encountered a problem:
http://cayenne.apache.org/doc12/tutorial-mapping-query.html
I click my DomainMap, then Create Query and select Raw SQL. I give it a 
name (DeleteAll), add the (delete from $table) SQL script (on 'Default 
Adapter') and save. I refresh the package in eclipse, and add the 
suggested code starting with the line:
QueryChain chain = new QueryChain();
When I Run As>Java Application, I get:
Exception in thread "main" java.lang.Error: Unresolved compilation 
problems:
	QueryChain cannot be resolved to a type
	QueryChain cannot be resolved to a type
	NamedQuery cannot be resolved to a type
	Collections cannot be resolved
etc...

How is the project supposed to recognize those types? Where are they 
supposed to be defined?

Many Thanks
Jack