Model Driven Interceptor In Struts2 Example File

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

To use this interceptor, your Action must implement the com.opensymphony.xwork2.ModelDriven interface and provide a getModel() method.

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 Action implements ModelDriven to tell Struts which object should receive the form data.

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

: 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

: It watches for actions that implement the ModelDriven interface and pushes the object returned by getModel() onto the top of the ValueStack . It is part of the defaultStack of interceptors,

: When used, validation is performed on the model object instead of the Action class itself. Implementation Example