Blame | Last modification | View Log | RSS feed
package in.shop2020.hotspot.dashbaord.shared;/*** <p>* FieldVerifier validates that the name the user enters is valid.* </p>* <p>* This class is in the <code>shared</code> packing because we use it in both* the client code and on the server. On the client, we verify that the name is* valid before sending an RPC request so the user doesn't have to wait for a* network round trip to get feedback. On the server, we verify that the name is* correct to ensure that the input is correct regardless of where the RPC* originates.* </p>* <p>* When creating a class that is used on both the client and the server, be sure* that all code is translatable and does not use native JavaScript. Code that* is note translatable (such as code that interacts with a database or the file* system) cannot be compiled into client side JavaScript. Code that uses native* JavaScript (such as Widgets) cannot be run on the server.* </p>*/public class FieldVerifier {/*** Verifies that the specified name is valid for our service.** In this example, we only require that the name is at least four* characters. In your application, you can use more complex checks to ensure* that usernames, passwords, email addresses, URLs, and other fields have the* proper syntax.** @param name the name to validate* @return true if valid, false if invalid*/public static boolean isValidName(String name) {if (name == null) {return false;}return name.length() > 3;}}