00001 /* 00002 * Licensed to the Apache Software Foundation (ASF) under one 00003 * or more contributor license agreements. See the NOTICE file 00004 * distributed with this work for additional information 00005 * regarding copyright ownership. The ASF licenses this file 00006 * to you under the Apache License, Version 2.0 (the "License"); 00007 * you may not use this file except in compliance with the License. 00008 * You may obtain a copy of the License at 00009 * 00010 * http://www.apache.org/licenses/LICENSE-2.0 00011 * 00012 * Unless required by applicable law or agreed to in writing, software 00013 * distributed under the License is distributed on an "AS IS" BASIS, 00014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00015 * See the License for the specific language governing permissions and 00016 * limitations under the License. 00017 */ 00018 #if !defined(XNUMBER_HEADER_GUARD_1357924680) 00019 #define XNUMBER_HEADER_GUARD_1357924680 00020 00021 00022 00023 // Base header file. Must be first. 00024 #include <xalanc/XPath/XPathDefinitions.hpp> 00025 00026 00027 00028 #include <xalanc/XalanDOM/XalanDOMString.hpp> 00029 00030 00031 00032 // Base class header file. 00033 #include <xalanc/XPath/XNumberBase.hpp> 00034 00035 00036 00037 XALAN_CPP_NAMESPACE_BEGIN 00038 00039 00040 00041 class XALAN_XPATH_EXPORT XNumber : public XNumberBase 00042 { 00043 public: 00044 00045 /** 00046 * Create an XNumber from a number. 00047 * 00048 * @param val numeric value to use 00049 */ 00050 XNumber( 00051 double val, 00052 MemoryManager& theMemoryManager); 00053 00054 XNumber( 00055 const XNumber& source, 00056 MemoryManager& theMemoryManager); 00057 00058 virtual 00059 ~XNumber(); 00060 00061 // These methods are inherited from XObject ... 00062 00063 virtual double 00064 num(XPathExecutionContext& executionContext) const; 00065 00066 virtual double 00067 num() const; 00068 00069 virtual const XalanDOMString& 00070 str(XPathExecutionContext& executionContext) const; 00071 00072 virtual const XalanDOMString& 00073 str() const; 00074 00075 virtual void 00076 str( 00077 XPathExecutionContext& executionContext, 00078 FormatterListener& formatterListener, 00079 MemberFunctionPtr function) const; 00080 00081 virtual void 00082 str( 00083 FormatterListener& formatterListener, 00084 MemberFunctionPtr function) const; 00085 00086 virtual void 00087 str( 00088 XPathExecutionContext& executionContext, 00089 XalanDOMString& theBuffer) const; 00090 00091 virtual void 00092 str(XalanDOMString& theBuffer) const; 00093 00094 virtual double 00095 stringLength(XPathExecutionContext& executionContext) const; 00096 00097 // These methods are new to XNumber... 00098 00099 /** 00100 * Change the value of an XNumber 00101 * 00102 * @param theValue The new value. 00103 */ 00104 void 00105 set(double theValue); 00106 00107 private: 00108 // not implemented 00109 XNumber(); 00110 XNumber(const XNumber&); 00111 00112 // Value of the number being represented. 00113 double m_value; 00114 00115 mutable XalanDOMString m_cachedStringValue; 00116 }; 00117 00118 00119 00120 XALAN_CPP_NAMESPACE_END 00121 00122 00123 00124 #endif // XNUMBER_HEADER_GUARD_1357924680
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