94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2008 by Sun Microsystems, Inc.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: pathexpression.hxx,v $
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* $Revision: 1.5 $
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef _PATHEXPRESSION_HXX
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#define _PATHEXPRESSION_HXX
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// include for parent class
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#include "computedexpression.hxx"
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// includes for member variables
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#include <vector>
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// forward declaractions
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namespace com { namespace sun { namespace star
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{
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namespace xml { namespace dom
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{
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class XNodeList;
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namespace events { class XEventListener; }
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} }
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} } }
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namespace xforms
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{
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/** PathExpression represents an XPath Expression and caches results */
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class PathExpression : public ComputedExpression
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{
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public:
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typedef std::vector<com::sun::star::uno::Reference<com::sun::star::xml::dom::XNode> > NodeVector_t;
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private:
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/// the node-list result from the last bind (cached from mxResult)
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NodeVector_t maNodes;
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protected:
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/// get expression for evaluation
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const rtl::OUString _getExpressionForEvaluation() const;
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public:
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PathExpression();
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~PathExpression();
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/// set the expression string
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/// (overridden to do remove old listeners)
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/// (also defines simple expressions)
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void setExpression( const rtl::OUString& rExpression );
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/// evaluate the expression relative to the content node.
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bool evaluate( const xforms::EvaluationContext& rContext );
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// get the result of this expression as node/node list/...
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com::sun::star::uno::Reference<com::sun::star::xml::dom::XNode> getNode() const;
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const NodeVector_t getNodeList() const;
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com::sun::star::uno::Reference<com::sun::star::xml::dom::XNodeList> getXNodeList() const;
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};
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} // namespace xforms
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#endif
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