  This paper presents an approach to dynamic component composition that
facilitates creating new composed components using existing ones at runtime and
without any code generation. The dynamic abilities are supported by extended
type notion and implementation based on additional superstructure provided with
its Java API and corresponding JavaBeans components. The new component
composition is performed by building the composed prototype object that can be
dynamically transformed into the new instantiable type (component). That
approach demonstrates interrelations between prototype-based and class-based
component-oriented programming. The component model proposed can be used when
implementing user-defined types in declarative languages for event-driven
applications programming.
