| /* |
| * Copyright (c) 1998, 2020 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // bdoughan - July 30/2009 - 2.0 - Initial implementation |
| package org.eclipse.persistence.internal.jaxb; |
| |
| import org.eclipse.persistence.mappings.DatabaseMapping; |
| import org.eclipse.persistence.oxm.XMLMarshaller; |
| import org.eclipse.persistence.oxm.XMLUnmarshaller; |
| import org.eclipse.persistence.oxm.mappings.converters.XMLConverter; |
| import org.eclipse.persistence.sessions.Session; |
| import org.w3c.dom.Element; |
| |
| /** |
| * If there is no text node then apply the default value. |
| * <pre> @XmlElement(required = true, defaultValue = "default") |
| * protected Object a;</pre> |
| */ |
| public class DefaultElementConverter implements XMLConverter { |
| |
| private String defaultValue; |
| |
| public DefaultElementConverter(String defaultValue) { |
| this.defaultValue = defaultValue; |
| } |
| |
| @Override |
| public void initialize(DatabaseMapping mapping, Session session) { |
| } |
| |
| @Override |
| public Object convertDataValueToObjectValue(Object dataValue, Session session) { |
| if(dataValue instanceof Element) { |
| Element element = (Element) dataValue; |
| if(element.getTextContent().length() == 0) { |
| element.setTextContent(defaultValue); |
| } |
| } |
| return dataValue; |
| } |
| |
| @Override |
| public Object convertObjectValueToDataValue(Object objectValue, Session session) { |
| return objectValue; |
| } |
| |
| @Override |
| public boolean isMutable() { |
| return false; |
| } |
| |
| @Override |
| public Object convertDataValueToObjectValue(Object dataValue, Session session, XMLUnmarshaller unmarshaller) { |
| return convertDataValueToObjectValue(dataValue, session); |
| } |
| |
| @Override |
| public Object convertObjectValueToDataValue(Object objectValue, Session session, XMLMarshaller marshaller) { |
| return convertObjectValueToDataValue(objectValue, session); |
| } |
| |
| } |