Complex classes like Node often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Node, and based on these observations, apply Extract Interface, too.
1 | <?php |
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10 | class Node |
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11 | { |
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12 | /** |
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13 | * @var String $id : The unique id of the node. |
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14 | */ |
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15 | private $id; |
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16 | /** |
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17 | * @var String $color : The text color of the node. |
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18 | */ |
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19 | private $color; |
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20 | /** |
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21 | * @var String $created : The timestamp of the creation date of the node. |
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22 | */ |
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23 | private $created; |
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24 | /** |
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25 | * @var String $modified : The timestamp of the modified date of the node. |
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26 | */ |
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27 | private $modified; |
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28 | /** |
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29 | * @var String $position : The relative position of the node. |
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30 | */ |
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31 | private $position; |
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32 | /** |
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33 | * @var int $vshift : The vshift of the node. |
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34 | */ |
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35 | private $vshift; |
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36 | /** |
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37 | * @var Bool $folded : Is the node folded or not. |
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38 | */ |
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39 | private $folded; |
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40 | /** |
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41 | * @var String $text : The text of the node. |
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42 | */ |
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43 | private $text; |
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44 | /** |
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45 | * @var Bool $bold : Is the text node in bold. |
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46 | */ |
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47 | private $bold; |
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48 | /** |
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49 | * @var Bool $italic : Is the text node in italic. |
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50 | */ |
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51 | private $italic; |
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52 | /** |
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53 | * @var String $fontName : The font name of the node. |
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54 | */ |
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55 | private $fontName; |
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56 | /** |
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57 | * @var int $fontSize : The font size of the node. |
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58 | */ |
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59 | private $fontSize; |
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60 | /** |
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61 | * @var Icon $icon : The icon of the node if there is one. |
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62 | */ |
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63 | private $icon; |
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64 | /** |
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65 | * @var NodeList $children : The children of the node as a collection of Nodes. |
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66 | */ |
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67 | private $children; |
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68 | /** |
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69 | * @var DOMElement $domNode : The DOMElement instance of the current Node. |
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70 | */ |
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71 | private $domNode; |
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72 | |||
73 | /** |
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74 | * @param DOMElement $domNode : The DOMElement instance of the current Node. |
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75 | * @param NodeList $children : The children of the node as a collection of Nodes. |
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76 | * @param Icon $icon : The icon of the node if there is one. |
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77 | * @param String $id : The unique id of the node. |
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78 | * @param String $color : The text color of the node. |
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79 | * @param String $created : The timestamp of the creation date of the node. |
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80 | * @param String $modified : The timestamp of the modified date of the node. |
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81 | * @param String $position : The relative position of the node. |
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82 | * @param int $vshift : The vshift of the node. |
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83 | * @param Bool $folded : Is the node folded or not. |
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84 | * @param String $text : The text of the node. |
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85 | * @param Bool $bold : Is the text node in bold. |
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86 | * @param Bool $italic : Is the text node in italic. |
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87 | * @param String $fontName : The font name of the current Node. |
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88 | * @param int $fontSize : The font size of the node. |
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89 | */ |
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90 | public function __construct(DOMElement $domNode = null, NodeList $children = null, Icon $icon = null, $id = null, $color = null, $created = null, $modified = null, $position = null, $vshift = null, $folded = null, $text = null, $bold = null, $italic = null, $fontName = null, $fontSize = null) { |
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107 | |||
108 | /** |
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109 | * Return the Id of the current node. |
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110 | * |
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111 | * @return String : The node id. |
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112 | */ |
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113 | public function getId() { |
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116 | |||
117 | /** |
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118 | * Set the Id of the current node. |
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119 | * |
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120 | * @param String $id : The node id. |
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121 | */ |
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122 | public function setId($id) { |
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125 | |||
126 | /** |
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127 | * Return the color of the current node. |
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128 | * |
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129 | * @return String : The node color value in hexadecimal. |
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130 | */ |
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131 | public function getColor() { |
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134 | |||
135 | /** |
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136 | * Set the color of the current node. |
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137 | * |
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138 | * @param String $color : The node color value in hexadecimal. |
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139 | */ |
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140 | public function setColor($color) { |
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143 | |||
144 | /** |
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145 | * Return the created timestamp of the current node. |
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146 | * |
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147 | * @return String : The node created timestamp. |
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148 | */ |
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149 | public function getCreated() { |
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152 | |||
153 | /** |
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154 | * Set the created timestamp of the current node. |
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155 | * |
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156 | * @param String $created : The node created timestamp. |
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157 | */ |
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158 | public function setCreated($created) { |
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161 | |||
162 | /** |
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163 | * Return the modified timestamp of the current node. |
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164 | * |
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165 | * @return String : The node modified timestamp. |
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166 | */ |
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167 | public function getModified() { |
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170 | |||
171 | /** |
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172 | * Set the modified timestamp of the current node. |
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173 | * |
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174 | * @param String $modified : The node modified timestamp. |
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175 | */ |
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176 | public function setModified($modified) { |
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179 | |||
180 | /** |
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181 | * Return the relative position the current node to the parent node. |
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182 | * |
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183 | * @return String : The node relative position. |
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184 | */ |
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185 | public function getPosition() { |
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188 | |||
189 | /** |
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190 | * Set the relative position the current node to the parent node. |
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191 | * |
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192 | * @param String $position : The node relative position. |
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193 | */ |
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194 | public function setPosition($position) { |
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197 | |||
198 | /** |
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199 | * Return the vshift value of the current node. |
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200 | * |
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201 | * @return int : The node vshift value. |
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202 | */ |
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203 | public function getVshift() { |
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206 | |||
207 | /** |
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208 | * Set the vshift value of the current node. |
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209 | * |
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210 | * @param int $vshift : The node vshift value. |
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211 | */ |
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212 | public function setVshift($vshift) { |
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215 | |||
216 | /** |
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217 | * Return if the current node is folded or not. |
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218 | * |
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219 | * @return Bool $folded |
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220 | */ |
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221 | public function isFolded() { |
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224 | |||
225 | /** |
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226 | * Set if the current node is folded or not. |
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227 | * |
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228 | * @param Bool $folded |
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229 | */ |
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230 | public function setFolded($folded) { |
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233 | |||
234 | /** |
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235 | * Return the text of the current node with html entities decoded. |
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236 | * |
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237 | * @return String : The node text value. |
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238 | */ |
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239 | public function getText() { |
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242 | |||
243 | /** |
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244 | * Return the text of the current node. |
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245 | * |
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246 | * @return String : The node text value. |
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247 | */ |
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248 | public function getRawText() { |
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251 | |||
252 | /** |
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253 | * Set the text of the current node with html entities decoded. |
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254 | * |
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255 | * @param String $text : The node text value in plain text not html encoded. |
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256 | */ |
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257 | public function setText($text) { |
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260 | |||
261 | /** |
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262 | * Return the font name of the current node. |
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263 | * |
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264 | * @return String : The node font name. |
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265 | */ |
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266 | public function getFontName() { |
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269 | |||
270 | /** |
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271 | * Set the font name of the current node. |
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272 | * |
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273 | * @param String $fontName : The node font name. |
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274 | */ |
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275 | public function setFontName($fontName) { |
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278 | |||
279 | /** |
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280 | * Return if the text node is bold. |
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281 | * |
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282 | * @return Bool : If the text is bold or not. |
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283 | */ |
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284 | public function isBold() { |
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287 | |||
288 | /** |
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289 | * Set if the text node is bold. |
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290 | * |
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291 | * @param Bool $bold : If the text must be bold or not. |
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292 | */ |
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293 | public function setBold($bold) { |
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296 | |||
297 | /** |
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298 | * Return if the text node is italic. |
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299 | * |
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300 | * @return Bool : If the text is italic or not. |
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301 | */ |
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302 | public function isItalic() { |
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305 | |||
306 | /** |
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307 | * Set if the text node is italic. |
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308 | * |
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309 | * @param Bool $italic : If the text must be italic or not. |
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310 | */ |
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311 | public function setItalic($italic) { |
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314 | |||
315 | /** |
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316 | * Return the font size of the current node. |
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317 | * |
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318 | * @return int : The node font size. |
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319 | */ |
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320 | public function getFontSize() { |
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323 | |||
324 | /** |
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325 | * Set the font size of the current node. |
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326 | * |
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327 | * @param int $fontSize : The node font size. |
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328 | */ |
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329 | public function setFontSize($fontSize) { |
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332 | |||
333 | /** |
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334 | * Return the icon of the current node if there is one. |
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335 | * |
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336 | * @return Icon : The icon. |
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337 | */ |
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338 | public function getIcon() { |
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341 | |||
342 | /** |
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343 | * Set the icon of the current node. |
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344 | * |
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345 | * @param Icon $icon : The node icon. |
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346 | */ |
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347 | public function setIcon(Icon $icon) { |
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350 | |||
351 | /** |
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352 | * Return the list of children of the current node. |
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353 | * |
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354 | */ |
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355 | public function getChildren() { |
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358 | |||
359 | /** |
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360 | * Set the list of children of the current node. |
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361 | * |
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362 | * @param NodeList $children : The list of children node. |
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363 | */ |
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364 | public function setChildren(NodeList $children) { |
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367 | |||
368 | /** |
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369 | * Return the DOMElement instance of the cirrent Node. |
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370 | * |
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371 | * @return DOMElement : DOMElement instance. |
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372 | */ |
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373 | public function getDomNode() { |
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376 | |||
377 | /** |
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378 | * Set the current DOMElement instance. |
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379 | * |
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380 | * @param DOMElement $domNode : The DOMElement instance. |
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381 | */ |
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382 | public function setDomNode(DOMElement $domNode) { |
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385 | |||
386 | /** |
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387 | * To String method. |
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388 | * |
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389 | * @return String : The text content of the node. |
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390 | */ |
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391 | public function __toString() { |
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394 | |||
395 | /** |
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396 | * Transform the objects tree in an array tree. |
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397 | * |
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398 | * @return Array $array : The array tree. |
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399 | */ |
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400 | public function toArray() { |
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425 | } |