TypeInfo.java revision 286
286N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 286N/A * This code is free software; you can redistribute it and/or modify it 286N/A * under the terms of the GNU General Public License version 2 only, as 286N/A * published by the Free Software Foundation. Oracle designates this 286N/A * particular file as subject to the "Classpath" exception as provided 286N/A * by Oracle in the LICENSE file that accompanied this code. 286N/A * This code is distributed in the hope that it will be useful, but WITHOUT 286N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 286N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 286N/A * version 2 for more details (a copy is included in the LICENSE file that 286N/A * accompanied this code). 286N/A * You should have received a copy of the GNU General Public License version 286N/A * 2 along with this work; if not, write to the Free Software Foundation, 286N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 286N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 286N/A * or visit www.oracle.com if you need additional information or have any 286N/A * This file is available under and governed by the GNU General Public 286N/A * License version 2 only, as published by the Free Software Foundation. 286N/A * However, the following notice accompanied the original version of this 286N/A * file and, per its terms, should not be removed: 286N/A * Copyright (c) 2004 World Wide Web Consortium, 286N/A * (Massachusetts Institute of Technology, European Research Consortium for 286N/A * Informatics and Mathematics, Keio University). All Rights Reserved. This 286N/A * work is distributed under the W3C(r) Software License [1] in the hope that 286N/A * it will be useful, but WITHOUT ANY WARRANTY; without even the implied 286N/A * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 286N/A * The <code>TypeInfo</code> interface represents a type referenced from 286N/A * <code>Element</code> or <code>Attr</code> nodes, specified in the schemas 286N/A * associated with the document. The type is a pair of a namespace URI and 286N/A * name properties, and depends on the document's schema. 286N/A * are computed as follows: 286N/A * <li> If this type is referenced from an 286N/A * <code>Attr</code> node, <code>typeNamespace</code> is 286N/A * . If there is no declaration for the attribute, <code>typeNamespace</code> 286N/A * and <code>typeName</code> are <code>null</code>. 286N/A * referenced from an <code>Element</code> node, <code>typeNamespace</code> 286N/A * and <code>typeName</code> are <code>null</code>. 286N/A * , the values are computed as follows using the post-schema-validation 286N/A * infoset contributions (also called PSVI contributions): 286N/A * <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 286N/A * available, otherwise <code>null</code>. 286N/A * <p ><b>Note:</b> At the time of writing, the XML Schema specification does 286N/A * not require exposing the declared type. Thus, DOM implementations might 286N/A * choose not to provide type information if validity is not valid. 286N/A * <li> If the <b>[validity]</b> property exists and is <em>"valid"</em>: 286N/A * <li> If <b>[member type definition]</b> exists: 286N/A * <li>If {name} is not absent, then expose {name} and {target 286N/A * namespace} properties of the <b>[member type definition]</b> property; 286N/A * <li>Otherwise, expose the namespace and local name of the 286N/A * corresponding anonymous type name. 286N/A * <li> If the <b>[type definition]</b> property exists: 286N/A * <li>If {name} is not absent, then expose {name} and {target 286N/A * namespace} properties of the <b>[type definition]</b> property; 286N/A * <li>Otherwise, expose the namespace and local name of the 286N/A * corresponding anonymous type name. 286N/A * <li> If the <b>[member type definition anonymous]</b> exists: 286N/A * <li>If it is false, then expose <b>[member type definition name]</b> and <b>[member type definition namespace]</b> properties; 286N/A * <li>Otherwise, expose the namespace and local name of the 286N/A * corresponding anonymous type name. 286N/A * <li> If the <b>[type definition anonymous]</b> exists: 286N/A * <li>If it is false, then expose <b>[type definition name]</b> and <b>[type definition namespace]</b> properties; 286N/A * <li>Otherwise, expose the namespace and local name of the 286N/A * corresponding anonymous type name. 286N/A * <p ><b>Note:</b> Other schema languages are outside the scope of the W3C 286N/A * and therefore should define how to represent their type systems using 286N/A * <code>TypeInfo</code>. 286N/A * The name of a type declared for the associated element or attribute, 286N/A * or <code>null</code> if unknown. 286N/A * The namespace of the type declared for the associated element or 286N/A * attribute or <code>null</code> if the element does not have 286N/A * declaration or if no namespace information is available. 286N/A * restriction</a> if simple types are involved. 286N/A * <br> The reference type definition is derived by restriction from the 286N/A * other type definition if the other type definition is the same as the 286N/A * reference type definition, or if the other type definition can be 286N/A * reached recursively following the {base type definition} property 286N/A * from the reference type definition, and all the <em>derivation methods</em> involved are restriction. 286N/A * <br> The reference type definition is derived by extension from the 286N/A * other type definition if the other type definition can be reached 286N/A * recursively following the {base type definition} property from the 286N/A * reference type definition, and at least one of the <em>derivation methods</em> involved is an extension. 286N/A * union</a> if simple types are involved. 286N/A * <br> The reference type definition is derived by union from the other 286N/A * type definition if there exists two type definitions T1 and T2 such 286N/A * as the reference type definition is derived from T1 by 286N/A * <code>DERIVATION_RESTRICTION</code> or 286N/A * <code>DERIVATION_EXTENSION</code>, T2 is derived from the other type 286N/A * 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 286N/A * the same as the reference type definition, and T2 could be the same 286N/A * as the other type definition. 286N/A * <br> The reference type definition is derived by list from the other 286N/A * type definition if there exists two type definitions T1 and T2 such 286N/A * as the reference type definition is derived from T1 by 286N/A * <code>DERIVATION_RESTRICTION</code> or 286N/A * <code>DERIVATION_EXTENSION</code>, T2 is derived from the other type 286N/A * 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 286N/A * the reference type definition, and T2 could be the same as the other 286N/A * This method returns if there is a derivation between the reference 286N/A * type definition, i.e. the <code>TypeInfo</code> on which the method 286N/A * is being called, and the other type definition, i.e. the one passed 286N/A * @param typeNamespaceArg the namespace of the other type definition. 286N/A * @param typeNameArg the name of the other type definition. 286N/A * @param derivationMethod the type of derivation and conditions applied 286N/A * between two types, as described in the list of constants provided 286N/A * @return If the document's schema is a DTD or no schema is associated 286N/A * with the document, this method will always return <code>false</code> 286N/A * . If the document's schema is an XML Schema, the method will return 286N/A * <code>true</code> if the reference type definition is derived from 286N/A * the other type definition according to the derivation parameter. If 286N/A * the value of the parameter is <code>0</code> (no bit is set to 286N/A * <code>1</code> for the <code>derivationMethod</code> parameter), 286N/A * the method will return <code>true</code> if the other type 286N/A * definition can be reached by recursing any combination of {base 286N/A * type definition}, {item type definition}, or {member type 286N/A * definitions} from the reference type definition.