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ElemVariable.hpp

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00001 /*
00002  * The Apache Software License, Version 1.1
00003  *
00004  *
00005  * Copyright (c) 1999 The Apache Software Foundation.  All rights 
00006  * reserved.
00007  *
00008  * Redistribution and use in source and binary forms, with or without
00009  * modification, are permitted provided that the following conditions
00010  * are met:
00011  *
00012  * 1. Redistributions of source code must retain the above copyright
00013  *    notice, this list of conditions and the following disclaimer. 
00014  *
00015  * 2. Redistributions in binary form must reproduce the above copyright
00016  *    notice, this list of conditions and the following disclaimer in
00017  *    the documentation and/or other materials provided with the
00018  *    distribution.
00019  *
00020  * 3. The end-user documentation included with the redistribution,
00021  *    if any, must include the following acknowledgment:  
00022  *       "This product includes software developed by the
00023  *        Apache Software Foundation (http://www.apache.org/)."
00024  *    Alternately, this acknowledgment may appear in the software itself,
00025  *    if and wherever such third-party acknowledgments normally appear.
00026  *
00027  * 4. The names "Xalan" and "Apache Software Foundation" must
00028  *    not be used to endorse or promote products derived from this
00029  *    software without prior written permission. For written 
00030  *    permission, please contact apache@apache.org.
00031  *
00032  * 5. Products derived from this software may not be called "Apache",
00033  *    nor may "Apache" appear in their name, without prior written
00034  *    permission of the Apache Software Foundation.
00035  *
00036  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
00037  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00038  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00039  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
00040  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00041  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00042  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
00043  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00044  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00045  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
00046  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00047  * SUCH DAMAGE.
00048  * ====================================================================
00049  *
00050  * This software consists of voluntary contributions made by many
00051  * individuals on behalf of the Apache Software Foundation and was
00052  * originally based on software copyright (c) 1999, International
00053  * Business Machines, Inc., http://www.ibm.com.  For more
00054  * information on the Apache Software Foundation, please see
00055  * <http://www.apache.org/>.
00056  */
00057 #if !defined(XALAN_ELEMVARIABLE_HEADER_GUARD)
00058 #define XALAN_ELEMVARIABLE_HEADER_GUARD 
00059 
00067 
00068 
00069 // Base include file.  Must be first.
00070 #include "XSLTDefinitions.hpp"
00071 
00072 // Base class header file.
00073 #include "ElemTemplateElement.hpp"
00074 
00075 
00076 
00077 #include <XPath/QName.hpp>
00078 
00079 
00080 
00081 #include <XSLT/Constants.hpp>
00082 
00083 
00084 
00085 class XObject;
00086 
00087 
00088 
00089 class ElemVariable : public ElemTemplateElement
00090 {
00091 public:
00092 
00103     ElemVariable(
00104             StylesheetConstructionContext&  constructionContext,
00105             Stylesheet&                     stylesheetTree,
00106             const DOMString&                name,
00107             const AttributeList&            atts,
00108             int                             lineNumber,
00109             int                             columnNumber,
00110             int                             xslToken = Constants::ELEMNAME_VARIABLE);
00111 
00112     virtual
00113     ~ElemVariable();
00114 
00122 //  XObject*
00123 //  getValue(
00124 //          StylesheetExecutionContext&     executionContext,
00125 //          XalanNode*                      sourceTree, 
00126 //          XalanNode*                      sourceNode) const;
00127 
00133     bool
00134     isTopLevel() const
00135     {
00136         return m_isTopLevel;
00137     }
00138 
00144     void
00145     setTopLevel(bool bTopLevel)
00146     {
00147         m_isTopLevel = bTopLevel;
00148     }
00149 
00155     const QName&
00156     getName() const
00157     { 
00158         return m_qname;
00159     }
00160 
00161     // These methods are inherited from ElemTemplateElement ...
00162     
00163     virtual void
00164     execute(
00165             StylesheetExecutionContext&     executionContext,
00166             XalanNode*                      sourceTree,
00167             XalanNode*                      sourceNode,
00168             const QName&                    mode) const;
00169 
00170 protected:
00171 
00172     QName           m_qname;
00173 
00174 private:
00175 
00176     // not implemented
00177     ElemVariable(const ElemVariable &);
00178 
00179     ElemVariable&
00180     operator=(const ElemVariable &);
00181 
00182     const XPath*    m_selectPattern;
00183 
00184     bool            m_isTopLevel;
00185 
00186     const XObject*  m_value;
00187 
00188     XalanNode*      m_varContext;
00189 };
00190 
00191 
00192 
00193 #endif  // XALAN_ELEMVARIABLE_HEADER_GUARD

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