<rt id="bn8ez"></rt>
<label id="bn8ez"></label>

  • <span id="bn8ez"></span>

    <label id="bn8ez"><meter id="bn8ez"></meter></label>

    隨筆-84  評論-56  文章-0  trackbacks-0

    Class Diagram in IntelliJ IDEA 8

    IntelliJ IDEA 8 is already here. It is so feature-rich that it’s rather hard to tell what is most important – improved testing support, or new refactorings, injected languages, or handy interaction with data sources. In due time, we’ll dig deeper into all the new features.

    Let’s begin with something brand-new for IntelliJ IDEA, namely UML Class diagram support. This feature is actually the first attempt to approach UML modeling, and thus requires further finishing and fine-tuning. Try Class diagram with IDEA hands-on – your feedback will be appreciated and considered in further revisions.

    You can use UML Class diagram for two purposes:

    • To create a visual model, populate it with node elements and members, and have the underlying code generated automatically (forward engineering).
    • To explore existing source code, understand its hierarchy and dependencies (reverse engineering).

    Creating visual model

    To demonstrate visual modeling with IntelliJ IDEA UML Class diagram in action, we’ll create a new Java project, add a package (for example, animals), and press (take care of your fingers) Ctrl+Alt+Shift+U. Context menu of the diagram helps create all the required elements, but, since IntelliJ IDEA is strongly keyboard-centric, we’ll use keyboard shortcuts.

     

     

     

     

     

    Press Shift+C to create new classes, for example, Animals, and Carnivore. Now press Shift+I to create an interface, say, Huntable. Note a very handy way to add node elements to a diagram: select a class in the Project view and just drag it to the diagram background:

     

     

     

     

     

     

     

    Next step is to add fields and methods to node elements. Here, again, you can use context menu commands, or keyboard shortcuts. For example, having selected a node element, press Shift+M, and define method name, type and parameters, if any:

     

     

     

     

     

     

    Now, let’s create relationship links between node elements. For this purpose, you have to enable the special edge drawing mode by clicking edge drawing mode button on the diagram toolbar. IntelliJ IDEA can smartly tell the type of relationship link, depending on the source and target nodes.

    Suppose you draw a link from a class to an interface:

     

     

     

     

     

     

     

    Click the Generate methods button, and select the methods you want to be implemented.

    Look into the source code of the Carnivore class, and see that implements clause has been generated, together with the selected methods’ stubs. Drawing a link between two classes, results in generating extends clause:

     

     

     

     

     

     

     

     

     

    Exploring code base with UML Class diagram

    Let’s see how you can use Class diagram in IntelliJ IDEA to reverse engineer source code, and view its structure, hierarchies and dependencies. Select a library package, for example, java.beans, and open its Class diagram:

     

     

     

     

     

     

    What does IntelliJ IDEA suggest to get as much information as possible? Actually, all facilities are on the diagram toolbar and context menu… however, as it is custom for IntelliJ IDEA, you can do everything using both the keyboard, and pointing device.

    If a diagram is too large, get a “10,000-feet view” of it in the Structure tool window. To do that, just press Alt+7:

     

     

     

     

     

    The gray rectangle represents the currently visible area of the diagram. Dragging this rectangle reveals the corresponding portion of diagram. You can zoom in and out using the NumPad plus and minus keys, or rotate your mouse wheel.

    If the names of the node elements are long, you can reduce them to the capital letters only by pressing Alt+N. Pointing to a node shows its fully qualified name at the tooltip:

     

     

     

     

     

     

     

     

    If we want to see the node elements with their members, rather than just class names in the title bars, press the toolbar buttons

    , or use keyboard shortcuts to show fields (Alt+F), constructors (Alt+C), methods (Alt+M) and inner classes (Alt+I) respectively:

     

     

     

     

     

     

     

     

     

     

     

    To show the package the selected node belongs to, just press C, and the diagram will collapse to the container package:

     

     

     

     

     

    The opposite action (E) expands selected package and shows its Class diagram. You can also easily visualize the nodes that reside in the same package, or in subpackages. To do that, select a node element in diagram, and press Space bar. The sibling nodes are highlighted yellow, and the nodes that belong to subpackages of the current package are green. The nodes that reside outside of the current package are not highlighted:

     

     

     

     

     

     

     

     

    If you point to a package, a tooltip appears with the complete information about the package - its name, number of contained classes and subpackages.

    Suppose that you want to explore only a portion of diagram, and remove from view those elements that are of no interest for you. In this case, use the Delete key. The node elements are deleted from diagram, but the corresponding files are left intact. (If you want to physically delete an element, use Safe Delete refactoring).

    For exploring dependencies, click the show dependencies button on the diagram toolbar

    . As you select a node element, its dependency links appear in diagram:

     

     

     

     

     

     

     

    Needless to say that handy navigation shortcuts, search for usages, analysis of dependencies and refactorings you are used to in IntelliJ IDEA, are available in Class diagram too.

    Try the live demo at http://www.jetbrains.com/idea/training/demos/uml-class-diagrams.html

    posted on 2008-11-12 09:45 憶風 閱讀(967) 評論(0)  編輯  收藏 所屬分類: IDE
    主站蜘蛛池模板: 好大好深好猛好爽视频免费| 亚洲不卡av不卡一区二区| 日本人护士免费xxxx视频| 亚洲人成无码网站| 亚洲AV无码AV日韩AV网站| 日本免费中文字幕| 免费一级毛片不卡不收费| 亚洲第一精品电影网| eeuss影院ss奇兵免费com| 天天干在线免费视频| 亚洲人成毛片线播放| 久久青草免费91线频观看站街| 久久九九亚洲精品| 久久ww精品w免费人成| 伊人久久精品亚洲午夜| 相泽南亚洲一区二区在线播放| 亚洲一区二区三区免费在线观看 | 国产成人精品曰本亚洲79ren| 亚洲中文字幕久在线| 黄页免费在线观看| 亚洲毛片不卡av在线播放一区| 亚洲欧美日韩自偷自拍| 免费观看激色视频网站bd| 亚洲精品国产精品国自产网站| 久久国产精品免费视频| 亚洲成A∨人片在线观看无码| 日韩精品免费在线视频| 亚洲日本在线免费观看| 青草草在线视频永久免费| 在线观看亚洲人成网站| 久久成人免费电影| 亚洲日韩精品国产3区| 亚洲福利在线播放| 性生大片视频免费观看一级| 免费国产在线观看| 久久免费动漫品精老司机| 亚洲综合无码一区二区痴汉| 性感美女视频在线观看免费精品| 特a级免费高清黄色片| 99久久精品国产亚洲| 真实国产乱子伦精品免费|