1.1 --- a/samples/visitor/visitunknown/src-api2.0/org/apidesign/visitor/Language.java	Sat Jun 14 10:32:31 2008 +0200
     1.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.3 @@ -1,57 +0,0 @@
     1.4 -package org.apidesign.visitor;
     1.5 -
     1.6 -public final class Language {
     1.7 -    private Language() { }
     1.8 -    
     1.9 -    public static abstract class Expression {
    1.10 -        public abstract void visit(Visitor v);
    1.11 -    }
    1.12 -    public static final class Plus extends Expression {
    1.13 -        private final Expression first;
    1.14 -        private final Expression second;
    1.15 -        
    1.16 -        public Plus(Expression first, Expression second) {
    1.17 -            this.first = first;
    1.18 -            this.second = second;
    1.19 -        }
    1.20 -        public Expression getFirst() { return first; }
    1.21 -        public Expression getSecond() { return second; }
    1.22 -        @Override
    1.23 -        public void visit(Visitor v) { v.visitPlus(this); }
    1.24 -    }
    1.25 -    public static final class Number extends Expression {
    1.26 -        private final int value;
    1.27 -        public Number(int value) { this.value = value; }
    1.28 -        public int getValue() { return value; }
    1.29 -        @Override
    1.30 -        public void visit(Visitor v) { v.visitNumber(this); }
    1.31 -    }
    1.32 -    /** @since 2.0 */
    1.33 -    public static final class Minus extends Expression {
    1.34 -        private final Expression first;
    1.35 -        private final Expression second;
    1.36 -        
    1.37 -        public Minus(Expression first, Expression second) {
    1.38 -            this.first = first;
    1.39 -            this.second = second;
    1.40 -        }
    1.41 -        public Expression getFirst() { return first; }
    1.42 -        public Expression getSecond() { return second; }
    1.43 -        public void visit(Visitor v) { 
    1.44 -            v.visitMinus(this);
    1.45 -        }
    1.46 -    }
    1.47 -    // BEGIN: visitor.visitunknown.v2
    1.48 -    public static abstract class Visitor/*2.0*/ {
    1.49 -        public void visitUnknown(Expression exp) {
    1.50 -            throw new IllegalStateException("Unknown element faced: " + exp);
    1.51 -        }
    1.52 -        public abstract void visitPlus(Plus s);
    1.53 -        public abstract void visitNumber(Number n);
    1.54 -        /** @since 2.0 */
    1.55 -        public void visitMinus(Minus s) {
    1.56 -            visitUnknown(s);
    1.57 -        }
    1.58 -    }
    1.59 -    // END: visitor.visitunknown.v2
    1.60 -}