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XPathEnvSupport.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
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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  * @author <a href="mailto:david_n_bertoni@lotus.com">David N. Bertoni</a>
00058  */
00059 #if !defined(XPATHENVSUPPORT_HEADER_GUARD_1357924680)
00060 #define XPATHENVSUPPORT_HEADER_GUARD_1357924680
00061 
00062 
00063 
00064 // Base include file.  Must be first.
00065 #include <XPath/XPathDefinitions.hpp>
00066 
00067 
00068 
00069 #include <map>
00070 #include <vector>
00071 
00072 
00073 
00074 // $$$ ToDo: Necessary while XalanDOMString is style a typedef.
00075 #include <XalanDOM/XalanDOMString.hpp>
00076 
00077 
00078 
00079 #include <PlatformSupport/DOMStringHelper.hpp>
00080 #include <PlatformSupport/Resettable.hpp>
00081 
00082 
00083 
00084 #include <XPath/Function.hpp>
00085 
00086 
00087 
00088 class NodeRefListBase;
00089 class PrefixResolver;
00090 class XLocator;
00091 class XObject;
00092 class XPathExecutionContext;
00093 class XObjectFactory;
00094 class XalanDocument;
00095 class XalanElement;
00096 class XalanNode;
00097 class XalanQName;
00098 
00099 
00100 
00101 class XALAN_XPATH_EXPORT XPathEnvSupport : public Resettable
00102 {
00103 public:
00104 
00105     typedef Function::XObjectArgVectorType  XObjectArgVectorType;
00106 
00107     XPathEnvSupport();
00108 
00109     virtual
00110     ~XPathEnvSupport();
00111 
00119     virtual XalanDocument*
00120     parseXML(
00121             const XalanDOMString&   urlString,
00122             const XalanDOMString&   base) = 0;
00123 
00130     virtual XalanDocument*
00131     getSourceDocument(const XalanDOMString&     theURI) const = 0;
00132 
00139     virtual void
00140     setSourceDocument(
00141             const XalanDOMString&   theURI,
00142             XalanDocument*          theDocument) = 0;
00143 
00151     virtual XalanDOMString
00152     findURIFromDoc(const XalanDocument*     owner) const = 0;
00153 
00159     virtual XalanDocument*
00160     getDOMFactory() const = 0;
00161 
00169     virtual bool
00170     elementAvailable(
00171             const XalanDOMString&   theNamespace, 
00172             const XalanDOMString&   elementName) const = 0;
00173 
00183     virtual bool
00184     functionAvailable(
00185             const XalanDOMString&   theNamespace, 
00186             const XalanDOMString&   functionName) const = 0;
00187 
00197     virtual XObjectPtr
00198     extFunction(
00199             XPathExecutionContext&          executionContext,
00200             const XalanDOMString&           theNamespace,
00201             const XalanDOMString&           functionName, 
00202             XalanNode*                      context,
00203             const XObjectArgVectorType&     argVec) const = 0;
00204 
00205     enum eSource { eXMLParser       = 1,
00206                    eXSLTProcessor   = 2,
00207                    eXPATHParser     = 3,
00208                    eXPATHProcessor  = 4,
00209                    eDataSource      = 5 };
00210 
00211     enum eClassification { eMessage = 0,
00212                            eWarning = 1,
00213                            eError = 2 };
00214 
00235     virtual bool
00236     problem(
00237             eSource                 where,
00238             eClassification         classification,
00239             const XalanNode*        styleNode,
00240             const XalanNode*        sourceNode,
00241             const XalanDOMString&   msg,
00242             const XalanDOMChar*     uri,
00243             int                     lineNo,
00244             int                     charOffset) const = 0;
00245 
00264     virtual bool
00265     problem(
00266             eSource                 where,
00267             eClassification         classification,
00268             const PrefixResolver*   resolver,
00269             const XalanNode*        sourceNode,
00270             const XalanDOMString&   msg,
00271             const XalanDOMChar*     uri,
00272             int                     lineNo,
00273             int                     charOffset) const = 0;
00274 
00275     // These interfaces are inherited from Resettable...
00276 
00277     virtual void
00278     reset() = 0;
00279 
00280 private:
00281 
00282     // These are not implemented...
00283     XPathEnvSupport(const XPathEnvSupport&);
00284 
00285     XPathEnvSupport&
00286     operator=(const XPathEnvSupport&);
00287 
00288     bool
00289     operator==(const XPathEnvSupport&) const;
00290 };
00291 
00292 
00293 
00294 #endif  // XPATHENVSUPPORT_HEADER_GUARD_1357924680

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