Here you can find the source of writeNamespace(XMLStreamWriter writer, String prefix, String namespaceURI)
public static void writeNamespace(XMLStreamWriter writer, String prefix, String namespaceURI) throws XMLStreamException
//package com.java2s; /*/*from w ww . j a v a 2 s .c o m*/ * sulky-modules - several general-purpose modules. * Copyright (C) 2007-2008 Joern Huxhorn * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import javax.xml.stream.XMLStreamException; import javax.xml.stream.XMLStreamWriter; public class Main { public static final String NO_PREFIX = ""; public static void writeNamespace(XMLStreamWriter writer, String prefix, String namespaceURI) throws XMLStreamException { if (prefix == null || NO_PREFIX.equals(prefix)) { writer.writeDefaultNamespace(namespaceURI); } else { writer.writeNamespace(prefix, namespaceURI); } } }