- /*
- * The Apache Software License, Version 1.1
- *
- *
- * Copyright (c) 2001, 2002 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 com.sun.org.apache.xerces.internal.impl.xs.traversers;
-
- import com.sun.org.apache.xerces.internal.impl.xs.SchemaGrammar;
- import com.sun.org.apache.xerces.internal.impl.xs.SchemaSymbols;
- import com.sun.org.apache.xerces.internal.impl.xs.XSElementDecl;
- import com.sun.org.apache.xerces.internal.impl.xs.identity.IdentityConstraint;
- import com.sun.org.apache.xerces.internal.impl.xs.identity.KeyRef;
- import com.sun.org.apache.xerces.internal.impl.xs.identity.UniqueOrKey;
- import com.sun.org.apache.xerces.internal.xni.QName;
- import org.w3c.dom.Element;
-
- /**
- * This class contains code that is used to traverse <keyref>s.
- *
- * @author Neil Graham, IBM
- * @version $Id: XSDKeyrefTraverser.java,v 1.6 2003/05/08 20:11:57 elena Exp $
- */
- 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 }, krElem);
- //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 }, krElem);
- //return this array back to pool
- fAttrChecker.returnAttrArray(attrValues, schemaDoc);
- return;
- }
-
- UniqueOrKey key = null;
- IdentityConstraint ret = (IdentityConstraint)fSchemaHandler.getGlobalDecl(schemaDoc, XSDHandler.IDENTITYCONSTRAINT_TYPE, kName, krElem);
- // 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.getCategory() == IdentityConstraint.IC_KEY ||
- ret.getCategory() == IdentityConstraint.IC_UNIQUE) {
- key = (UniqueOrKey)ret;
- } else {
- reportSchemaError("src-resolve", new Object[]{kName.rawname, "identity constraint key/unique"}, krElem);
- }
- }
-
- if(key == null) {
- fAttrChecker.returnAttrArray(attrValues, schemaDoc);
- return;
- }
-
- KeyRef keyRef = new KeyRef(schemaDoc.fTargetNamespace, 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()}, krElem);
- } 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
-