Model Driven Interceptor In Struts2 Example Review

: The model object returned by getModel() must not be null; otherwise, the interceptor will ignore it and not push it onto the stack.

: It watches for actions that implement the ModelDriven interface and pushes the object returned by getModel() onto the top of the ValueStack . Model Driven Interceptor In Struts2 Example

: The interceptor has a refreshModelBeforeResult parameter. Setting it to true is useful if you change the model instance (e.g., loading a new object from a database) during the action execution and want the new instance on the stack before the result is rendered. : The model object returned by getModel() must

: The ModelDrivenInterceptor must appear before the ParametersInterceptor in the stack to ensure the model is on the stack before parameters are applied to it. Setting it to true is useful if you

import com.opensymphony.xwork2.ActionSupport; import com.opensymphony.xwork2.ModelDriven; public class LoginAction extends ActionSupport implements ModelDriven { // Model object must be initialized private User user = new User(); @Override public User getModel() { return user; } public String execute() { // Business logic uses the populated 'user' object return SUCCESS; } } Use code with caution. Copied to clipboard Configuration and Best Practices

: The interceptor ensures that request parameters are bound directly to the model's fields.

: For more complex scenarios, the ScopedModelDrivenInterceptor can retrieve or store models in different scopes like session or request . xml to include or exclude specific features? Model Driven - Apache Struts