Java tutorial
/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * This file is available under and governed by the GNU General Public * License version 2 only, as published by the Free Software Foundation. * However, the following notice accompanied the original version of this * file and, per its terms, should not be removed: * * Copyright (c) 2004 World Wide Web Consortium, * * (Massachusetts Institute of Technology, European Research Consortium for * Informatics and Mathematics, Keio University). All Rights Reserved. This * work is distributed under the W3C(r) Software License [1] 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. * * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231 */ package org.w3c.dom; /** * The <code>TypeInfo</code> interface represents a type referenced from * <code>Element</code> or <code>Attr</code> nodes, specified in the schemas * associated with the document. The type is a pair of a namespace URI and * name properties, and depends on the document's schema. * <p> If the document's schema is an XML DTD [<a href='http://www.w3.org/TR/2004/REC-xml-20040204'>XML 1.0</a>], the values * are computed as follows: * <ul> * <li> If this type is referenced from an * <code>Attr</code> node, <code>typeNamespace</code> is * <code>"http://www.w3.org/TR/REC-xml"</code> and <code>typeName</code> * represents the <b>[attribute type]</b> property in the [<a href='http://www.w3.org/TR/2004/REC-xml-infoset-20040204/'>XML Information Set</a>] * . If there is no declaration for the attribute, <code>typeNamespace</code> * and <code>typeName</code> are <code>null</code>. * </li> * <li> If this type is * referenced from an <code>Element</code> node, <code>typeNamespace</code> * and <code>typeName</code> are <code>null</code>. * </li> * </ul> * <p> If the document's schema is an XML Schema [<a href='http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/'>XML Schema Part 1</a>] * , the values are computed as follows using the post-schema-validation * infoset contributions (also called PSVI contributions): * <ul> * <li> If the <b>[validity]</b> property exists AND is <em>"invalid"</em> or <em>"notKnown"</em>: the {target namespace} and {name} properties of the declared type if * available, otherwise <code>null</code>. * <p ><b>Note:</b> At the time of writing, the XML Schema specification does * not require exposing the declared type. Thus, DOM implementations might * choose not to provide type information if validity is not valid. * </li> * <li> If the <b>[validity]</b> property exists and is <em>"valid"</em>: * <ol> * <li> If <b>[member type definition]</b> exists: * <ol> * <li>If {name} is not absent, then expose {name} and {target * namespace} properties of the <b>[member type definition]</b> property; * </li> * <li>Otherwise, expose the namespace and local name of the * corresponding anonymous type name. * </li> * </ol> * </li> * <li> If the <b>[type definition]</b> property exists: * <ol> * <li>If {name} is not absent, then expose {name} and {target * namespace} properties of the <b>[type definition]</b> property; * </li> * <li>Otherwise, expose the namespace and local name of the * corresponding anonymous type name. * </li> * </ol> * </li> * <li> If the <b>[member type definition anonymous]</b> exists: * <ol> * <li>If it is false, then expose <b>[member type definition name]</b> and <b>[member type definition namespace]</b> properties; * </li> * <li>Otherwise, expose the namespace and local name of the * corresponding anonymous type name. * </li> * </ol> * </li> * <li> If the <b>[type definition anonymous]</b> exists: * <ol> * <li>If it is false, then expose <b>[type definition name]</b> and <b>[type definition namespace]</b> properties; * </li> * <li>Otherwise, expose the namespace and local name of the * corresponding anonymous type name. * </li> * </ol> * </li> * </ol> * </li> * </ul> * <p ><b>Note:</b> Other schema languages are outside the scope of the W3C * and therefore should define how to represent their type systems using * <code>TypeInfo</code>. * <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407'>Document Object Model (DOM) Level 3 Core Specification</a>. * @since 1.5, DOM Level 3 */ public interface TypeInfo { /** * The name of a type declared for the associated element or attribute, * or <code>null</code> if unknown. */ public String getTypeName(); /** * The namespace of the type declared for the associated element or * attribute or <code>null</code> if the element does not have * declaration or if no namespace information is available. */ public String getTypeNamespace(); // DerivationMethods /** * If the document's schema is an XML Schema [<a href='http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/'>XML Schema Part 1</a>] * , this constant represents the derivation by <a href='http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/#key-typeRestriction'> * restriction</a> if complex types are involved, or a <a href='http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/#element-restriction'> * restriction</a> if simple types are involved. * <br> The reference type definition is derived by restriction from the * other type definition if the other type definition is the same as the * reference type definition, or if the other type definition can be * reached recursively following the {base type definition} property * from the reference type definition, and all the <em>derivation methods</em> involved are restriction. */ public static final int DERIVATION_RESTRICTION = 0x00000001; /** * If the document's schema is an XML Schema [<a href='http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/'>XML Schema Part 1</a>] * , this constant represents the derivation by <a href='http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/#key-typeExtension'> * extension</a>. * <br> The reference type definition is derived by extension from the * other type definition if the other type definition can be reached * recursively following the {base type definition} property from the * reference type definition, and at least one of the <em>derivation methods</em> involved is an extension. */ public static final int DERIVATION_EXTENSION = 0x00000002; /** * If the document's schema is an XML Schema [<a href='http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/'>XML Schema Part 1</a>] * , this constant represents the <a href='http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/#element-union'> * union</a> if simple types are involved. * <br> The reference type definition is derived by union from the other * type definition if there exists two type definitions T1 and T2 such * as the reference type definition is derived from T1 by * <code>DERIVATION_RESTRICTION</code> or * <code>DERIVATION_EXTENSION</code>, T2 is derived from the other type * definition by <code>DERIVATION_RESTRICTION</code>, T1 has {variety} <em>union</em>, and one of the {member type definitions} is T2. Note that T1 could be * the same as the reference type definition, and T2 could be the same * as the other type definition. */ public static final int DERIVATION_UNION = 0x00000004; /** * If the document's schema is an XML Schema [<a href='http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/'>XML Schema Part 1</a>] * , this constant represents the <a href='http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/#element-list'>list</a>. * <br> The reference type definition is derived by list from the other * type definition if there exists two type definitions T1 and T2 such * as the reference type definition is derived from T1 by * <code>DERIVATION_RESTRICTION</code> or * <code>DERIVATION_EXTENSION</code>, T2 is derived from the other type * definition by <code>DERIVATION_RESTRICTION</code>, T1 has {variety} <em>list</em>, and T2 is the {item type definition}. Note that T1 could be the same as * the reference type definition, and T2 could be the same as the other * type definition. */ public static final int DERIVATION_LIST = 0x00000008; /** * This method returns if there is a derivation between the reference * type definition, i.e. the <code>TypeInfo</code> on which the method * is being called, and the other type definition, i.e. the one passed * as parameters. * @param typeNamespaceArg the namespace of the other type definition. * @param typeNameArg the name of the other type definition. * @param derivationMethod the type of derivation and conditions applied * between two types, as described in the list of constants provided * in this interface. * @return If the document's schema is a DTD or no schema is associated * with the document, this method will always return <code>false</code> * . If the document's schema is an XML Schema, the method will return * <code>true</code> if the reference type definition is derived from * the other type definition according to the derivation parameter. If * the value of the parameter is <code>0</code> (no bit is set to * <code>1</code> for the <code>derivationMethod</code> parameter), * the method will return <code>true</code> if the other type * definition can be reached by recursing any combination of {base * type definition}, {item type definition}, or {member type * definitions} from the reference type definition. */ public boolean isDerivedFrom(String typeNamespaceArg, String typeNameArg, int derivationMethod); }