1 | /* |
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2 | * Licensed to the Apache Software Foundation (ASF) under one or more |
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3 | * contributor license agreements. See the NOTICE file distributed with |
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4 | * this work for additional information regarding copyright ownership. |
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5 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
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6 | * (the "License"); you may not use this file except in compliance with |
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7 | * the License. You may obtain a copy of the License at |
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8 | * |
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9 | * http://www.apache.org/licenses/LICENSE-2.0 |
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10 | * |
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11 | * Unless required by applicable law or agreed to in writing, software |
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12 | * distributed under the License is distributed on an "AS IS" BASIS, |
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13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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14 | * See the License for the specific language governing permissions and |
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15 | * limitations under the License. |
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16 | */ |
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17 | |
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18 | /* |
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19 | * $Id: DOM_Comment.hpp 568078 2007-08-21 11:43:25Z amassari $ |
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20 | */ |
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21 | |
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22 | #ifndef DOM_Comment_HEADER_GUARD_ |
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23 | #define DOM_Comment_HEADER_GUARD_ |
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24 | |
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25 | #include <xercesc/util/XercesDefs.hpp> |
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26 | #include "DOM_CharacterData.hpp" |
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27 | |
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28 | XERCES_CPP_NAMESPACE_BEGIN |
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29 | |
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30 | |
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31 | class CommentImpl; |
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32 | |
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33 | /** |
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34 | * Class to refer to XML comment nodes in the DOM. |
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35 | * |
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36 | * <P>The string value contains all of the characters between |
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37 | * the starting '<code><!--</code>' and ending '<code>--></code>'. |
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38 | */ |
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39 | class DEPRECATED_DOM_EXPORT DOM_Comment: public DOM_CharacterData { |
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40 | |
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41 | public: |
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42 | /** @name Constructors and assignment operators */ |
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43 | //@{ |
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44 | /** |
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45 | * Default constructor for DOM_Comment. The resulting object does not |
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46 | * refer to an actual Comment node; it will compare == to 0, and is similar |
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47 | * to a null object reference variable in Java. It may subsequently be |
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48 | * assigned to refer to an actual comment node. |
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49 | * <p> |
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50 | * New comment nodes are created by DOM_Document::createComment(). |
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51 | * |
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52 | */ |
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53 | DOM_Comment(); |
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54 | |
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55 | /** |
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56 | * Copy constructor. Creates a new <code>DOM_Comment</code> that refers to the |
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57 | * same underlying node as the original. See also DOM_Node::clone(), |
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58 | * which will copy the actual Comment node, rather than just creating a new |
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59 | * reference to the original node. |
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60 | * |
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61 | * @param other The object to be copied. |
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62 | */ |
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63 | DOM_Comment(const DOM_Comment &other); |
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64 | /** |
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65 | * Assignment operator. |
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66 | * |
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67 | * @param other The object to be copied. |
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68 | */ |
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69 | DOM_Comment & operator = (const DOM_Comment &other); |
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70 | |
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71 | /** |
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72 | * Assignment operator. This overloaded variant is provided for |
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73 | * the sole purpose of setting a DOM_Node reference variable to |
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74 | * zero. Nulling out a reference variable in this way will decrement |
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75 | * the reference count on the underlying Node object that the variable |
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76 | * formerly referenced. This effect is normally obtained when reference |
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77 | * variable goes out of scope, but zeroing them can be useful for |
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78 | * global instances, or for local instances that will remain in scope |
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79 | * for an extended time, when the storage belonging to the underlying |
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80 | * node needs to be reclaimed. |
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81 | * |
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82 | * @param val Only a value of 0, or null, is allowed. |
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83 | */ |
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84 | DOM_Comment & operator = (const DOM_NullPtr *val); |
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85 | |
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86 | |
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87 | |
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88 | //@} |
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89 | /** @name Destructor. */ |
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90 | //@{ |
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91 | /** |
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92 | * Destructor for DOM_Comment. The object being destroyed is the reference |
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93 | * object, not the underlying Comment node itself. |
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94 | * |
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95 | */ |
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96 | ~DOM_Comment(); |
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97 | //@} |
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98 | |
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99 | protected: |
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100 | DOM_Comment(CommentImpl *comment); |
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101 | |
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102 | friend class DOM_Document; |
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103 | |
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104 | |
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105 | |
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106 | }; |
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107 | |
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108 | XERCES_CPP_NAMESPACE_END |
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109 | |
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110 | #endif |
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111 | |
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