ValueStoreCache.hpp
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- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2001-2003 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.ibm.com . For more information
- * on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- /*
- * $Id: ValueStoreCache.hpp,v 1.6 2003/05/16 21:43:22 knoaman Exp $
- */
- #if !defined(VALUESTORECACHE_HPP)
- #define VALUESTORECACHE_HPP
- /**
- * This class is used to store the values for identity constraints.
- *
- * Sketch of algorithm:
- * - When a constraint is first encountered, its values are stored in the
- * (local) fIC2ValueStoreMap;
- * - Once it is validated (i.e., wen it goes out of scope), its values are
- * merged into the fGlobalICMap;
- * - As we encounter keyref's, we look at the global table to validate them.
- * - Validation always occurs against the fGlobalIDConstraintMap (which
- * comprises all the "eligible" id constraints). When an endelement is
- * found, this Hashtable is merged with the one below in the stack. When a
- * start tag is encountered, we create a new fGlobalICMap.
- * i.e., the top of the fGlobalIDMapStack always contains the preceding
- * siblings' eligible id constraints; the fGlobalICMap contains
- * descendants+self. Keyrefs can only match descendants+self.
- */
- // ---------------------------------------------------------------------------
- // Includes
- // ---------------------------------------------------------------------------
- #include <xercesc/util/RefVectorOf.hpp>
- #include <xercesc/util/RefHashTableOf.hpp>
- #include <xercesc/util/RefHash2KeysTableOf.hpp>
- #include <xercesc/util/RefStackOf.hpp>
- #include <xercesc/validators/schema/identity/IdentityConstraint.hpp>
- #include <xercesc/validators/schema/identity/IC_Field.hpp>
- XERCES_CPP_NAMESPACE_BEGIN
- // ---------------------------------------------------------------------------
- // Forward Declcaration
- // ---------------------------------------------------------------------------
- class ValueStore;
- class SchemaElementDecl;
- class XMLScanner;
- class VALIDATORS_EXPORT ValueStoreCache : public XMemory
- {
- public:
- // -----------------------------------------------------------------------
- // Constructors/Destructor
- // -----------------------------------------------------------------------
- ValueStoreCache(MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
- ~ValueStoreCache();
- // -----------------------------------------------------------------------
- // Setter Methods
- // -----------------------------------------------------------------------
- void setScanner(XMLScanner* const scanner);
- // -----------------------------------------------------------------------
- // Document Handling methods
- // -----------------------------------------------------------------------
- void startDocument();
- void startElement();
- void endElement();
- void endDocument();
- // -----------------------------------------------------------------------
- // Initialization methods
- // -----------------------------------------------------------------------
- void initValueStoresFor(SchemaElementDecl* const elemDecl, const int initialDepth);
- // -----------------------------------------------------------------------
- // Access methods
- // -----------------------------------------------------------------------
- ValueStore* getValueStoreFor(const IC_Field* const field, const int initialDepth);
- ValueStore* getValueStoreFor(const IdentityConstraint* const ic, const int intialDepth);
- ValueStore* getGlobalValueStoreFor(const IdentityConstraint* const ic);
- // -----------------------------------------------------------------------
- // Helper methods
- // -----------------------------------------------------------------------
- /** This method takes the contents of the (local) ValueStore associated
- * with ic and moves them into the global hashtable, if ic is a <unique>
- * or a <key>. If it's a <keyRef>, then we leave it for later.
- */
- void transplant(IdentityConstraint* const ic, const int initialDepth);
- private:
- // -----------------------------------------------------------------------
- // Unimplemented contstructors and operators
- // -----------------------------------------------------------------------
- ValueStoreCache(const ValueStoreCache& other);
- ValueStoreCache& operator= (const ValueStoreCache& other);
- // -----------------------------------------------------------------------
- // Helper methods
- // -----------------------------------------------------------------------
- void init();
- void cleanUp();
- // -----------------------------------------------------------------------
- // Data
- // -----------------------------------------------------------------------
- RefVectorOf<ValueStore>* fValueStores;
- RefHashTableOf<ValueStore>* fGlobalICMap;
- RefHash2KeysTableOf<ValueStore>* fIC2ValueStoreMap;
- RefStackOf<RefHashTableOf<ValueStore> >* fGlobalMapStack;
- XMLScanner* fScanner;
- MemoryManager* fMemoryManager;
- };
- // ---------------------------------------------------------------------------
- // ValueStoreCache: Access methods
- // ---------------------------------------------------------------------------
- inline void ValueStoreCache::setScanner(XMLScanner* const scanner) {
- fScanner = scanner;
- }
- // ---------------------------------------------------------------------------
- // ValueStoreCache: Access methods
- // ---------------------------------------------------------------------------
- inline ValueStore*
- ValueStoreCache::getValueStoreFor(const IC_Field* const field, const int initialDepth) {
- return fIC2ValueStoreMap->get(field->getIdentityConstraint(), initialDepth);
- }
- inline ValueStore*
- ValueStoreCache::getValueStoreFor(const IdentityConstraint* const ic, const int initialDepth) {
- return fIC2ValueStoreMap->get(ic, initialDepth);
- }
- inline ValueStore*
- ValueStoreCache::getGlobalValueStoreFor(const IdentityConstraint* const ic) {
- return fGlobalICMap->get(ic);
- }
- // ---------------------------------------------------------------------------
- // ValueStoreCache: Document handling methods
- // ---------------------------------------------------------------------------
- inline void ValueStoreCache::endDocument() {
- }
- XERCES_CPP_NAMESPACE_END
- #endif
- /**
- * End of file ValueStoreCache.hpp
- */