: When used, validation is performed on the model object instead of the Action class itself. Implementation Example
: 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
In Struts 2, the is a core component that allows an Action class to delegate data handling to a separate model object rather than using its own fields. It is part of the defaultStack of interceptors, meaning it is applied to all actions by default unless manually overridden. Key Functions 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.
: By placing the model at the top of the stack, OGNL can access its properties directly in JSPs without needing to prefix them with the model's name. : When used, validation is performed on the
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 ModelDrivenInterceptor must appear before the ParametersInterceptor in the stack to ensure the model is on the stack before parameters are applied to it. Model Driven - Apache Struts In Struts 2,
public class User { private String username; private String email; // Getters and Setters public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } } Use code with caution. Copied to clipboard