Validation

Content validation of inputfields can be made directly in the facelet with the required attribute and several validation tags.

Validation can also be described in the controller via annotations.

In the context of validation, you may report errors to the user. The <tc:messages/> tag provide different severity levels. Have a look at Messages.

<?xml version="1.0" encoding="UTF-8"?> <!-- * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. --> <ui:composition template="/main.xhtml" xmlns="http://www.w3.org/1999/xhtml" xmlns:tc="http://myfaces.apache.org/tobago/component" xmlns:ui="http://java.sun.com/jsf/facelets"> <ui:param name="title" value="#{demoBundle.validation}"/> <p>Content validation of inputfields can be made directly in the facelet with the <code>required</code> attribute and several validation tags.</p> <p>Validation can also be described in the controller via annotations.</p> <p>In the context of validation, you may report errors to the user. The <code class="language-markup">&lt;tc:messages/></code> tag provide different severity levels. Have a look at <tc:link label="#{demoBundle.messages}" outcome="/content/20-component/020-output/30-messages/messages.xhtml"/>.</p> </ui:composition>