| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Copyright 2001, 2002,2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| 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. |
| * |
| * @xerces.internal |
| * |
| * @author Neil Graham, IBM |
| * @version $Id: XSDKeyrefTraverser.java,v 1.7 2010-11-01 04:40:02 joehw 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); |
| |
| // If errors occurred in traversing the identity constraint, then don't |
| // add it to the schema, to avoid errors when processing the instance. |
| if (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 |
| if (grammar.getIDConstraintDecl(keyRef.getIdentityConstraintName()) == null) { |
| grammar.addIDConstraintDecl(element, keyRef); |
| } |
| |
| // also add it to extended map |
| final String loc = fSchemaHandler.schemaDocument2SystemId(schemaDoc); |
| final IdentityConstraint idc = grammar.getIDConstraintDecl(keyRef.getIdentityConstraintName(), loc); |
| if (idc == null) { |
| grammar.addIDConstraintDecl(element, keyRef, loc); |
| } |
| |
| // handle duplicates |
| if (fSchemaHandler.fTolerateDuplicates) { |
| if (idc != null) { |
| if (idc instanceof KeyRef) { |
| keyRef = (KeyRef) idc; |
| } |
| } |
| fSchemaHandler.addIDConstraintDecl(keyRef); |
| } |
| } |
| } |
| |
| // and put back attributes |
| fAttrChecker.returnAttrArray(attrValues, schemaDoc); |
| } // traverse(Element,int,XSDocumentInfo, SchemaGrammar) |
| } // XSDKeyrefTraverser |