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| Creating a nested aspect |
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| <h1> |
| Creating a nested aspect |
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| You can create aspects that are enclosed in other types (that is, nested aspects). |
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| <li> |
| Open the New Aspect wizard. |
| </li> |
| <li> |
| Edit the <strong>Source Folder</strong> field to indicate in which folder you want the new aspect to reside. You can either type a path or |
| click <strong>Browse</strong> to find the folder. If a folder is found for the current selection, that folder appears in |
| the <strong>Source Folder</strong> field as the container for the new aspect. |
| </li> |
| <li> |
| Select the <strong>Enclosing Type</strong> check box and type the name of the enclosing type in the <strong>Enclosing Type</strong> field. You can |
| also click <strong>Browse</strong> to select the enclosing type for the new aspect. |
| </li> |
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| In the <strong>Name</strong> field, type a name for the new aspect. |
| </li> |
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| Select the desired modifiers by using the <strong>Modifiers</strong> radio buttons and check boxes. |
| Note that <em>static</em> should not be de-selected because nested aspects must be static. |
| </li> |
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| In the <strong>Supertype</strong> field, type or click <strong>Browse</strong> to select a superclass/aspect for the new aspect. |
| </li> |
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| Click the <strong>Add</strong> button to add interfaces for the new aspect to implement. |
| </li> |
| <li> |
| Select the <strong>public static void main(String[] args)</strong> check box if you want the wizard to add the main method to the new aspect, thus |
| making it a starting point of an application. |
| </li> |
| <li> |
| Select the <strong>Inherited abstract pointcuts</strong> box if you have overridden an abstract aspect |
| and want the wizard to generate stubs for the abstract pointcuts. |
| <li> |
| Select the <strong>Generate comments</strong> box if you want the wizard to generate comments, as configured in the properties |
| for the project. |
| </li> |
| <li> |
| Click <strong>Finish</strong> when you are done. |
| </li> |
| <li> |
| If the enclosing type is a class, you may wish to change the file extension in order to avoid |
| errors in the editor and to have the AspectJ content correctly displayed in views such as the Outline view and the |
| Package Explorer. Right click on the file in the package explorer then select |
| <strong>Convert file extension to .aj</strong>. |
| </ol> |
| <p> |
| <strong>Note:</strong> The new aspect is created in the same compilation unit as its enclosing type. |
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| <img src="../images/ngrelc.gif" alt="Related concepts" border="0" height="27" width="159"> |
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| <p> |
| <a href="../concepts/projects.htm">AspectJ projects</a><br> |
| <a href="../concepts/aspects.htm">Aspects</a> |
| </p> |
| <p> |
| <img src="../images/ngrelt.gif" alt="Related tasks" border="0" height="27" width="159"> |
| </p> |
| <p> |
| <a href="newaspect.htm">Creating a new aspect</a><br> |
| <a href="toplevelaspect.htm">Creating a top-level aspect</a><br> |
| <a href="convertingextensions.htm">Converting file extensions</a> |
| </p> |
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