|
Struts example source code file (RequiredFieldValidator.java)
The Struts RequiredFieldValidator.java source code/* * Copyright 2002-2006,2009 The Apache Software Foundation. * * Licensed 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. */ package com.opensymphony.xwork2.validator.validators; import com.opensymphony.xwork2.validator.ValidationException; /** * <!-- START SNIPPET: javadoc --> * RequiredFieldValidator checks if the specified field is not null. * <!-- END SNIPPET: javadoc --> * <p/> * * * <!-- START SNIPPET: parameters --> * <ul> * <li>fieldName - field name if plain-validator syntax is used, not needed if field-validator syntax is used * </ul> * <!-- END SNIPPET: parameters --> * * * <pre> * <!-- START SNIPPET: example --> * <validators> * * <!-- Plain Validator Syntax --> * <validator type="required"> * <param name="fieldName">username</param> * <message>username must not be null</message> * </validator> * * * <!-- Field Validator Syntax --> * <field name="username"> * <field-validator type="required"> * <message>username must not be null</message> * </field-validator> * </field> * * </validators> * <!-- END SNIPPET: example --> * </pre> * * * * @author rainerh * @version $Revision: 894090 $ */ public class RequiredFieldValidator extends FieldValidatorSupport { public void validate(Object object) throws ValidationException { String fieldName = getFieldName(); Object value = this.getFieldValue(fieldName, object); if (value == null) { addFieldError(fieldName, object); } } } Other Struts examples (source code examples)Here is a short list of links related to this Struts RequiredFieldValidator.java source code file: |
... this post is sponsored by my books ... | |
#1 New Release! |
FP Best Seller |
Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.
A percentage of advertising revenue from
pages under the /java/jwarehouse
URI on this website is
paid back to open source projects.