Dynamic Form Beans in Struts – Struts Tutorial

Dynamic Form Beans in Struts: –

• If form bean class is developed by the programmer completely & totally then it is called as manual form bean class / explicit form bean class. The form bean class that we have developed so far comes under explicit form beans.
• If framework software generates total form bean or atleast form bean properties and their getxxx () and setxxx () methods dynamically. Then they are called as “dynamic form beans”.
• To work with Dynamic form beans we need to use DynaxxxForm classes like:-
  • DynaActionForm
  • DynaValidatorForm
  • DynaValidatorActionForm

Six important form bean types:-

ActionForm

• DynaActionForm (o.a.s action)

DynaValidatorForm ValidatorActionForm (o.a.s Validator)

DynaValidatorActionForm (o.a.s Validator)

•  ValidatorForm (o.a.s Validator)

Validator ActionForm  (o.a.s Validator)

Dynamic Form Beans:

1) Declarative Dynamic FormBean

• Total FormBean will be generated dynamically

• Cfg DynaxxxForm class in Struts-cfg file explicitly                                                                                   

2)  Programatic DynamicFormBean

• Needs to write FormBean class explicitly
• The formbean properties and getxxx(), setxxx () will be generated dynamically

• Programmatic dynamic form bean are good to use