[2674] | 1 | /* |
---|
| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more |
---|
| 3 | * contributor license agreements. See the NOTICE file distributed with |
---|
| 4 | * this work for additional information regarding copyright ownership. |
---|
| 5 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
---|
| 6 | * (the "License"); you may not use this file except in compliance with |
---|
| 7 | * the License. You may obtain a copy of the License at |
---|
| 8 | * |
---|
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
---|
| 10 | * |
---|
| 11 | * Unless required by applicable law or agreed to in writing, software |
---|
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
---|
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
---|
| 14 | * See the License for the specific language governing permissions and |
---|
| 15 | * limitations under the License. |
---|
| 16 | */ |
---|
| 17 | |
---|
| 18 | /* |
---|
| 19 | * $Id: ValueStoreCache.hpp 568078 2007-08-21 11:43:25Z amassari $ |
---|
| 20 | */ |
---|
| 21 | |
---|
| 22 | #if !defined(VALUESTORECACHE_HPP) |
---|
| 23 | #define VALUESTORECACHE_HPP |
---|
| 24 | |
---|
| 25 | /** |
---|
| 26 | * This class is used to store the values for identity constraints. |
---|
| 27 | * |
---|
| 28 | * Sketch of algorithm: |
---|
| 29 | * - When a constraint is first encountered, its values are stored in the |
---|
| 30 | * (local) fIC2ValueStoreMap; |
---|
| 31 | * - Once it is validated (i.e., wen it goes out of scope), its values are |
---|
| 32 | * merged into the fGlobalICMap; |
---|
| 33 | * - As we encounter keyref's, we look at the global table to validate them. |
---|
| 34 | * - Validation always occurs against the fGlobalIDConstraintMap (which |
---|
| 35 | * comprises all the "eligible" id constraints). When an endelement is |
---|
| 36 | * found, this Hashtable is merged with the one below in the stack. When a |
---|
| 37 | * start tag is encountered, we create a new fGlobalICMap. |
---|
| 38 | * i.e., the top of the fGlobalIDMapStack always contains the preceding |
---|
| 39 | * siblings' eligible id constraints; the fGlobalICMap contains |
---|
| 40 | * descendants+self. Keyrefs can only match descendants+self. |
---|
| 41 | */ |
---|
| 42 | |
---|
| 43 | // --------------------------------------------------------------------------- |
---|
| 44 | // Includes |
---|
| 45 | // --------------------------------------------------------------------------- |
---|
| 46 | #include <xercesc/util/RefVectorOf.hpp> |
---|
| 47 | #include <xercesc/util/RefHashTableOf.hpp> |
---|
| 48 | #include <xercesc/util/RefHash2KeysTableOf.hpp> |
---|
| 49 | #include <xercesc/util/RefStackOf.hpp> |
---|
| 50 | #include <xercesc/validators/schema/identity/IdentityConstraint.hpp> |
---|
| 51 | #include <xercesc/validators/schema/identity/IC_Field.hpp> |
---|
| 52 | |
---|
| 53 | XERCES_CPP_NAMESPACE_BEGIN |
---|
| 54 | |
---|
| 55 | // --------------------------------------------------------------------------- |
---|
| 56 | // Forward Declcaration |
---|
| 57 | // --------------------------------------------------------------------------- |
---|
| 58 | class ValueStore; |
---|
| 59 | class SchemaElementDecl; |
---|
| 60 | class XMLScanner; |
---|
| 61 | |
---|
| 62 | |
---|
| 63 | class VALIDATORS_EXPORT ValueStoreCache : public XMemory |
---|
| 64 | { |
---|
| 65 | public: |
---|
| 66 | // ----------------------------------------------------------------------- |
---|
| 67 | // Constructors/Destructor |
---|
| 68 | // ----------------------------------------------------------------------- |
---|
| 69 | ValueStoreCache(MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager); |
---|
| 70 | ~ValueStoreCache(); |
---|
| 71 | |
---|
| 72 | // ----------------------------------------------------------------------- |
---|
| 73 | // Setter Methods |
---|
| 74 | // ----------------------------------------------------------------------- |
---|
| 75 | void setScanner(XMLScanner* const scanner); |
---|
| 76 | |
---|
| 77 | // ----------------------------------------------------------------------- |
---|
| 78 | // Document Handling methods |
---|
| 79 | // ----------------------------------------------------------------------- |
---|
| 80 | void startDocument(); |
---|
| 81 | void startElement(); |
---|
| 82 | void endElement(); |
---|
| 83 | void endDocument(); |
---|
| 84 | |
---|
| 85 | // ----------------------------------------------------------------------- |
---|
| 86 | // Initialization methods |
---|
| 87 | // ----------------------------------------------------------------------- |
---|
| 88 | void initValueStoresFor(SchemaElementDecl* const elemDecl, const int initialDepth); |
---|
| 89 | |
---|
| 90 | |
---|
| 91 | // ----------------------------------------------------------------------- |
---|
| 92 | // Access methods |
---|
| 93 | // ----------------------------------------------------------------------- |
---|
| 94 | ValueStore* getValueStoreFor(const IC_Field* const field, const int initialDepth); |
---|
| 95 | ValueStore* getValueStoreFor(const IdentityConstraint* const ic, const int intialDepth); |
---|
| 96 | ValueStore* getGlobalValueStoreFor(const IdentityConstraint* const ic); |
---|
| 97 | |
---|
| 98 | // ----------------------------------------------------------------------- |
---|
| 99 | // Helper methods |
---|
| 100 | // ----------------------------------------------------------------------- |
---|
| 101 | /** This method takes the contents of the (local) ValueStore associated |
---|
| 102 | * with ic and moves them into the global hashtable, if ic is a <unique> |
---|
| 103 | * or a <key>. If it's a <keyRef>, then we leave it for later. |
---|
| 104 | */ |
---|
| 105 | void transplant(IdentityConstraint* const ic, const int initialDepth); |
---|
| 106 | |
---|
| 107 | private: |
---|
| 108 | // ----------------------------------------------------------------------- |
---|
| 109 | // Unimplemented contstructors and operators |
---|
| 110 | // ----------------------------------------------------------------------- |
---|
| 111 | ValueStoreCache(const ValueStoreCache& other); |
---|
| 112 | ValueStoreCache& operator= (const ValueStoreCache& other); |
---|
| 113 | |
---|
| 114 | // ----------------------------------------------------------------------- |
---|
| 115 | // Helper methods |
---|
| 116 | // ----------------------------------------------------------------------- |
---|
| 117 | void init(); |
---|
| 118 | void cleanUp(); |
---|
| 119 | |
---|
| 120 | // ----------------------------------------------------------------------- |
---|
| 121 | // Data |
---|
| 122 | // ----------------------------------------------------------------------- |
---|
| 123 | RefVectorOf<ValueStore>* fValueStores; |
---|
| 124 | RefHashTableOf<ValueStore>* fGlobalICMap; |
---|
| 125 | RefHash2KeysTableOf<ValueStore>* fIC2ValueStoreMap; |
---|
| 126 | RefStackOf<RefHashTableOf<ValueStore> >* fGlobalMapStack; |
---|
| 127 | XMLScanner* fScanner; |
---|
| 128 | MemoryManager* fMemoryManager; |
---|
| 129 | }; |
---|
| 130 | |
---|
| 131 | // --------------------------------------------------------------------------- |
---|
| 132 | // ValueStoreCache: Access methods |
---|
| 133 | // --------------------------------------------------------------------------- |
---|
| 134 | inline void ValueStoreCache::setScanner(XMLScanner* const scanner) { |
---|
| 135 | |
---|
| 136 | fScanner = scanner; |
---|
| 137 | } |
---|
| 138 | |
---|
| 139 | // --------------------------------------------------------------------------- |
---|
| 140 | // ValueStoreCache: Access methods |
---|
| 141 | // --------------------------------------------------------------------------- |
---|
| 142 | inline ValueStore* |
---|
| 143 | ValueStoreCache::getValueStoreFor(const IC_Field* const field, const int initialDepth) { |
---|
| 144 | |
---|
| 145 | return fIC2ValueStoreMap->get(field->getIdentityConstraint(), initialDepth); |
---|
| 146 | } |
---|
| 147 | |
---|
| 148 | inline ValueStore* |
---|
| 149 | ValueStoreCache::getValueStoreFor(const IdentityConstraint* const ic, const int initialDepth) { |
---|
| 150 | |
---|
| 151 | return fIC2ValueStoreMap->get(ic, initialDepth); |
---|
| 152 | } |
---|
| 153 | |
---|
| 154 | inline ValueStore* |
---|
| 155 | ValueStoreCache::getGlobalValueStoreFor(const IdentityConstraint* const ic) { |
---|
| 156 | |
---|
| 157 | return fGlobalICMap->get(ic); |
---|
| 158 | } |
---|
| 159 | |
---|
| 160 | // --------------------------------------------------------------------------- |
---|
| 161 | // ValueStoreCache: Document handling methods |
---|
| 162 | // --------------------------------------------------------------------------- |
---|
| 163 | inline void ValueStoreCache::endDocument() { |
---|
| 164 | } |
---|
| 165 | |
---|
| 166 | XERCES_CPP_NAMESPACE_END |
---|
| 167 | |
---|
| 168 | #endif |
---|
| 169 | |
---|
| 170 | /** |
---|
| 171 | * End of file ValueStoreCache.hpp |
---|
| 172 | */ |
---|
| 173 | |
---|