| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2001 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xerces" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 2001, International |
| * Business Machines, Inc., http://www.apache.org. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| package org.apache.xerces.impl.xs.traversers; |
| |
| import org.apache.xerces.impl.XMLErrorReporter; |
| import org.apache.xerces.impl.xs.SchemaGrammar; |
| import org.apache.xerces.impl.xs.SchemaSymbols; |
| import org.apache.xerces.impl.xs.XSElementDecl; |
| import org.apache.xerces.util.DOMUtil; |
| import org.apache.xerces.xni.QName; |
| import org.w3c.dom.Element; |
| import org.apache.xerces.impl.xs.identity.*; |
| import org.apache.xerces.impl.xpath.*; |
| |
| /** |
| * This class contains code that is used to traverse <keyref>s. |
| * |
| * @author Neil Graham, IBM |
| * @version $Id$ |
| */ |
| class XSDKeyrefTraverser extends XSDAbstractIDConstraintTraverser { |
| |
| public XSDKeyrefTraverser (XSDHandler handler, |
| XSAttributeChecker gAttrCheck) { |
| super(handler, gAttrCheck); |
| } |
| |
| void traverse(Element krElem, XSElementDecl element, |
| XSDocumentInfo schemaDoc, SchemaGrammar grammar) { |
| |
| // General Attribute Checking |
| Object[] attrValues = fAttrChecker.checkAttributes(krElem, false, schemaDoc); |
| |
| // create identity constraint |
| String krName = (String)attrValues[XSAttributeChecker.ATTIDX_NAME]; |
| if(krName == null){ |
| reportSchemaError("s4s-att-must-appear", new Object [] {SchemaSymbols.ELT_KEYREF , SchemaSymbols.ATT_NAME }); |
| //return this array back to pool |
| fAttrChecker.returnAttrArray(attrValues, schemaDoc); |
| return; |
| } |
| QName kName = (QName)attrValues[XSAttributeChecker.ATTIDX_REFER]; |
| if(kName == null){ |
| reportSchemaError("s4s-att-must-appear", new Object [] {SchemaSymbols.ELT_KEYREF , SchemaSymbols.ATT_REFER }); |
| //return this array back to pool |
| fAttrChecker.returnAttrArray(attrValues, schemaDoc); |
| return; |
| } |
| |
| UniqueOrKey key = null; |
| IdentityConstraint ret = (IdentityConstraint)fSchemaHandler.getGlobalDecl(schemaDoc, XSDHandler.IDENTITYCONSTRAINT_TYPE, kName); |
| // if ret == null, we've already reported an error in getGlobalDecl |
| // we report an error only when ret != null, and the return type keyref |
| if (ret != null) { |
| if (ret.getType() == IdentityConstraint.KEY || |
| ret.getType() == IdentityConstraint.UNIQUE) { |
| key = (UniqueOrKey)ret; |
| } else { |
| reportSchemaError("src-resolve", new Object[]{kName.rawname, "identity constraint key/unique"}); |
| } |
| } |
| |
| if(key == null) { |
| fAttrChecker.returnAttrArray(attrValues, schemaDoc); |
| return; |
| } |
| |
| KeyRef keyRef = new KeyRef(krName, element.fName, key); |
| |
| // add to element decl |
| traverseIdentityConstraint(keyRef, krElem, schemaDoc, attrValues); |
| |
| //Schema Component Constraint: Identity-constraint Definition Properties Correct |
| //2 If the {identity-constraint category} is keyref, the cardinality of the {fields} must equal that of the {fields} of the {referenced key}. |
| if(key.getFieldCount() != keyRef.getFieldCount()) { |
| reportSchemaError("c-props-correct.2" , new Object [] {krName,key.getIdentityConstraintName()}); |
| } else { |
| // add key reference to element decl |
| // and stuff this in the grammar |
| grammar.addIDConstraintDecl(element, keyRef); |
| } |
| |
| // and put back attributes |
| fAttrChecker.returnAttrArray(attrValues, schemaDoc); |
| } // traverse(Element,int,XSDocumentInfo, SchemaGrammar) |
| } // XSDKeyrefTraverser |
| |
