Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/shared/FieldVerifier.java @ 3701:6288056e2673

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Java 1.5 -> Java 1.6 flys-client/trunk@5424 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 10 Sep 2012 13:34:16 +0000
parents ba1b27b7d282
children
rev   line source
0
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.client.shared;
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
2
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
3 /**
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
4 * <p>
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
5 * FieldVerifier validates that the name the user enters is valid.
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
6 * </p>
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
7 * <p>
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
8 * This class is in the <code>shared</code> package because we use it in both
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
9 * the client code and on the server. On the client, we verify that the name is
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
10 * valid before sending an RPC request so the user doesn't have to wait for a
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
11 * network round trip to get feedback. On the server, we verify that the name is
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
12 * correct to ensure that the input is correct regardless of where the RPC
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
13 * originates.
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
14 * </p>
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
15 * <p>
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
16 * When creating a class that is used on both the client and the server, be sure
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
17 * that all code is translatable and does not use native JavaScript. Code that
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
18 * is note translatable (such as code that interacts with a database or the file
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
19 * system) cannot be compiled into client side JavaScript. Code that uses native
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
20 * JavaScript (such as Widgets) cannot be run on the server.
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
21 * </p>
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
22 */
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
23 public class FieldVerifier {
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
24
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
25 /**
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
26 * Verifies that the specified name is valid for our service.
615
ba1b27b7d282 Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 0
diff changeset
27 *
0
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
28 * In this example, we only require that the name is at least four
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
29 * characters. In your application, you can use more complex checks to ensure
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
30 * that usernames, passwords, email addresses, URLs, and other fields have the
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
31 * proper syntax.
615
ba1b27b7d282 Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 0
diff changeset
32 *
0
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
33 * @param name the name to validate
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
34 * @return true if valid, false if invalid
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
35 */
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
36 public static boolean isValidName(String name) {
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
37 if (name == null) {
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
38 return false;
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
39 }
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
40 return name.length() > 3;
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
41 }
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
42 }
http://dive4elements.wald.intevation.org