Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/shared/FieldVerifier.java @ 4324:4980659b2f22

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Add gauge name to the measurement station xml response The reference gauge should be displayed in the measurement station info panel. Therefore the artifact service must return the name of the gauge.
author Björn Ricks <bjoern.ricks@intevation.de>
date Tue, 30 Oct 2012 12:49:17 +0100
parents ba1b27b7d282
children
rev   line source
0
4e8be5e7855f Start of a GWT based client for FLYS-3.0
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 package de.intevation.flys.client.shared;
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2
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3 /**
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4 * <p>
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5 * FieldVerifier validates that the name the user enters is valid.
4e8be5e7855f Start of a GWT based client for FLYS-3.0
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6 * </p>
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7 * <p>
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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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
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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
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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
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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
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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
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13 * originates.
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14 * </p>
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15 * <p>
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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
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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
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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
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19 * system) cannot be compiled into client side JavaScript. Code that uses native
4e8be5e7855f Start of a GWT based client for FLYS-3.0
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20 * JavaScript (such as Widgets) cannot be run on the server.
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21 * </p>
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22 */
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23 public class FieldVerifier {
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24
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25 /**
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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26 * Verifies that the specified name is valid for our service.
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ba1b27b7d282 Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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27 *
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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
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29 * characters. In your application, you can use more complex checks to ensure
4e8be5e7855f Start of a GWT based client for FLYS-3.0
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30 * that usernames, passwords, email addresses, URLs, and other fields have the
4e8be5e7855f Start of a GWT based client for FLYS-3.0
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31 * proper syntax.
615
ba1b27b7d282 Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 0
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32 *
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33 * @param name the name to validate
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34 * @return true if valid, false if invalid
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35 */
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36 public static boolean isValidName(String name) {
4e8be5e7855f Start of a GWT based client for FLYS-3.0
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37 if (name == null) {
4e8be5e7855f Start of a GWT based client for FLYS-3.0
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38 return false;
4e8be5e7855f Start of a GWT based client for FLYS-3.0
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39 }
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40 return name.length() > 3;
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41 }
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42 }
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