170 lines
3.8 KiB
C++
170 lines
3.8 KiB
C++
/*
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* Copyright (c) 2001-2007
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* DecisionSoft Limited. All rights reserved.
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* Copyright (c) 2004-2007
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* Oracle. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* $Id: ContextHelpers.hpp,v 1.6 2007/11/28 13:13:20 jpcs Exp $
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*/
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#ifndef CONTEXTHELPERS_HPP
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#define CONTEXTHELPERS_HPP
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#include <xqilla/framework/XQillaExport.hpp>
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#include <xqilla/context/DynamicContext.hpp>
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class XQILLA_API AutoNodeSetOrderingReset
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{
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public:
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AutoNodeSetOrderingReset(StaticContext* context, StaticContext::NodeSetOrdering ordering = StaticContext::ORDERING_UNORDERED)
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{
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context_ = context;
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ordering_ = context->getNodeSetOrdering();
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context->setNodeSetOrdering(ordering);
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}
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~AutoNodeSetOrderingReset()
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{
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context_->setNodeSetOrdering(ordering_);
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}
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protected:
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StaticContext* context_;
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StaticContext::NodeSetOrdering ordering_;
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};
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class XQILLA_API AutoContextItemTypeReset
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{
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public:
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AutoContextItemTypeReset(StaticContext* context, const StaticType &sType)
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{
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context_ = context;
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sType_ = context->getContextItemType();
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context->setContextItemType(sType);
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}
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~AutoContextItemTypeReset()
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{
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context_->setContextItemType(sType_);
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}
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protected:
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StaticContext* context_;
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StaticType sType_;
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};
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class XQILLA_API AutoNsScopeReset
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{
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public:
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AutoNsScopeReset(StaticContext* context, XERCES_CPP_NAMESPACE_QUALIFIER DOMXPathNSResolver* newResolver)
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{
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_context=context;
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_oldNSResolver=_context->getNSResolver();
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_defaultElementAndTypeNS=context->getDefaultElementAndTypeNS();
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_context->setNSResolver(newResolver);
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}
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~AutoNsScopeReset()
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{
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_context->setNSResolver(_oldNSResolver);
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_context->setDefaultElementAndTypeNS(_defaultElementAndTypeNS);
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}
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protected:
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StaticContext* _context;
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const XERCES_CPP_NAMESPACE_QUALIFIER DOMXPathNSResolver* _oldNSResolver;
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const XMLCh *_defaultElementAndTypeNS;
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};
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class XQILLA_API AutoContextInfoReset
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{
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public:
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AutoContextInfoReset(DynamicContext* context)
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: oldContextItem(context->getContextItem()),
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oldContextPosition(context->getContextPosition()),
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oldContextSize(context->getContextSize()),
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context_(context)
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{
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}
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~AutoContextInfoReset()
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{
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resetContextInfo();
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}
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void resetContextInfo()
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{
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context_->setContextItem(oldContextItem);
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context_->setContextPosition(oldContextPosition);
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context_->setContextSize(oldContextSize);
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}
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Item::Ptr oldContextItem;
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size_t oldContextPosition;
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size_t oldContextSize;
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private:
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DynamicContext* context_;
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};
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class XQILLA_API AutoDocumentCacheReset
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{
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public:
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AutoDocumentCacheReset(DynamicContext* context)
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: oldDC(const_cast<DocumentCache*>(context->getDocumentCache())),
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context_ (context)
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{
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}
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~AutoDocumentCacheReset()
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{
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context_->setDocumentCache(oldDC);
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}
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DocumentCache *oldDC;
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protected:
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DynamicContext* context_;
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};
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class XQILLA_API AutoVariableStoreReset
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{
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public:
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AutoVariableStoreReset(DynamicContext *context, const VariableStore *store = 0)
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{
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_context = context;
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_oldVarStore = _context->getVariableStore();
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if(store)
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_context->setVariableStore(store);
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}
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~AutoVariableStoreReset()
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{
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_context->setVariableStore(_oldVarStore);
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}
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void reset()
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{
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_context->setVariableStore(_oldVarStore);
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}
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protected:
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DynamicContext *_context;
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const VariableStore *_oldVarStore;
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};
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#endif
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