1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/samples/visitor/21-clientprovider/src-api1.0/org/apidesign/visitor/Language.java	Sat Jun 14 09:59:16 2008 +0200
     1.3 @@ -0,0 +1,49 @@
     1.4 +package org.apidesign.visitor;
     1.5 +
     1.6 +public final class Language {
     1.7 +    private Language() { }
     1.8 +    
     1.9 +    // BEGIN: visitor.clientprovider.v1
    1.10 +    public interface Expression {
    1.11 +        public abstract void visit(Visitor v);
    1.12 +    }
    1.13 +    public interface Plus extends Expression {
    1.14 +        public Expression getFirst();
    1.15 +        public Expression getSecond();
    1.16 +    }
    1.17 +    public interface Number extends Expression {
    1.18 +        public int getValue();
    1.19 +    }
    1.20 +
    1.21 +    public static abstract class Visitor {
    1.22 +        Visitor() {}
    1.23 +
    1.24 +        public Visitor create(Version1_0 v) {
    1.25 +            return create1_0(v);
    1.26 +        }
    1.27 +
    1.28 +        public interface Version1_0 {
    1.29 +            public boolean visitUnknown(Expression e);
    1.30 +            public void visitPlus(Plus s);
    1.31 +            public void visitNumber(Number n);
    1.32 +        }
    1.33 +
    1.34 +        public abstract void dispatchPlus(Plus p);
    1.35 +        public abstract void dispatchNumber(Number n);
    1.36 +    }
    1.37 +    // END: visitor.clientprovider.v1
    1.38 +    
    1.39 +    static Visitor create1_0(final Visitor.Version1_0 v) {
    1.40 +        return new Visitor() {
    1.41 +            @Override
    1.42 +            public void dispatchPlus(Plus p) {
    1.43 +                v.visitPlus(p);
    1.44 +            }
    1.45 +
    1.46 +            @Override
    1.47 +            public void dispatchNumber(Number n) {
    1.48 +                v.visitNumber(n);
    1.49 +            }
    1.50 +        };
    1.51 +    }
    1.52 +}