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| <title>Refactor, view, edit and remove entities and their |
| attributes</title> |
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| <div class="sect1"> |
| <!-- infolevel="all" infotype="General" --> |
| <h2>Refactoring entities and attribute types</h2> |
| <td><div> |
| <p> |
| <b>Caution:</b> |
| </p> |
| <div> |
| <ul> |
| <li><p> |
| If you rename or move an entity using a different approach (for |
| example, via the <i>Project Explorer</i>), the entity disappears |
| from the JPA diagram. |
| </p> |
| </li> |
| <li><p>When you refactor an attribute type, any existing |
| business logic within the attribute's access methods is deleted.</p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| <p>Using the JPA diagram editor, you can perform the following |
| refactoring operations:</p> |
| <div> |
| <ul> |
| <li><p> |
| Rename the entity class - in the context menu of the entity name, |
| choose <span><i>Refactor Entity Class</i> -> <i>Rename</i> |
| </span>, then complete the wizard. |
| </p> |
| </li> |
| <li><p> |
| Move the entity to another source package - in the context menu |
| of the entity name, choose <span><i>Refactor Entity |
| Class</i> -> <i>Move</i> |
| </span>, then complete the wizard. |
| </p> |
| </li> |
| <li><p> |
| Refactor an attribute type - in the context menu of an attribute, |
| choose <i>Refactor Attribute Type</i>, change the type, and |
| choose <i>OK</i>. |
| </p> |
| </li> |
| </ul> |
| </div></td> |
| |
| <h2>Viewing and editing entities' source code</h2> |
| <td><p>To view and edit the source code of a particular |
| entity, double-click the title of the corresponding entity block on |
| the diagram.</p> |
| <p>The Eclipse IDE opens the entity class in the standard source |
| code editor.</p> |
| <p>When you apply changes to the source code, they are |
| automatically synchronized with the diagram.</p></td> |
| |
| <h2>Removing all entities from the diagram</h2> |
| <td><div> |
| <p> |
| <b>Note:</b> |
| </p> |
| <p>This operation removes the entities from the JPA diagram |
| only, that is, they are not removed from the underlying application |
| data model.</p> |
| </div> |
| <div> |
| <ol> |
| <li><p>Click the JPA diagram with the secondary mouse |
| button.</p> |
| </li> |
| <li><p> |
| To save any unsaved changes to the application data model, and |
| remove all entities from the diagram, choose <span> <i>Remove |
| All Entities from Diagram</i> -> <i>...and Save Changes</i> |
| </span> |
| </p> |
| </li> |
| <li><p> |
| To remove all entities from the diagram without saving any |
| unsaved changes to the data model, choose <span><i>Remove |
| All Entities from Diagram</i> -> <i>...and Discard Changes</i> |
| </span>. |
| </p> |
| </li> |
| </ol> |
| </div></td> |
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