samples/visitor/22-self/src-api3.0/org/apidesign/visitor/Language.java
Sat, 14 Jun 2008 22:59:00 +0200 The final book text is using VisitorXY instead of original VisitorX_Y
Sat, 14 Jun 2008 09:59:32 +0200 Visitor.visit(with self) turned into sample