question: private ChildNodeDescriptor insertType ( final DefaultMutableTreeNode parentNode , final BaseType baseType , final int index ) { final BaseTypeTreeNode newNode = new BaseTypeTreeNode ( baseType ) ; parentNode . insert ( newNode , index ) ; createTypeNodes ( newNode , baseType ) ; return new ChildNodeDescriptor ( newNode , index ) ; }
target:  Creates a new base type tree node below the given parent node and recursively creates all member nodes.