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| <h1 id="SiriusProvidecustommodeloperation">Sirius – Provide custom model operation</h1> |
| <h2 id="Goals">Goals</h2> |
| <p>Sirius provides various model operations (change context, if, for, create instance, etc). This extension point allows the contribution of additional model operations.</p> |
| <h2 id="Defineamodeloperationextension">Define a model operation extension</h2> |
| <p>This extension point is identified as |
| <code>org.eclipse.sirius.diagram.bundledImageShape</code>. In this extension, there are three required fields: |
| </p> |
| <ul> |
| <li>id – The identifier of the contribution</li> |
| <li>name – The human readable name of the contribution</li> |
| <li>modelOperationManager – The Java class used to handle the model operation</li> |
| </ul> |
| <p>The model operation manager will have to create a Sirius task from the given description of the model operation. An example is available in the plugin |
| <code>org.eclipse.sirius.ui.properties</code> with the class |
| <code>org.eclipse.sirius.ui.properties.internal.dialog.DialogModelOperationManager</code>. |
| </p> |
| <pre>public class DialogModelOperationManager implements IModelOperationManager { |
| |
| @Override |
| public Optional<ICommandTask> createTask(ModelOperation modelOperation, ModelAccessor modelAccessor, UICallBack uiCallback, |
| Session session, IInterpreter interpreter, CommandContext context) { |
| if (modelOperation instanceof DialogModelOperation) { |
| DialogModelOperation dialogModelOperation = (DialogModelOperation) modelOperation; |
| return Optional.of(new DialogTask(context, modelAccessor, interpreter, session, dialogModelOperation)); |
| } |
| return Optional.empty(); |
| } |
| |
| } |
| |
| </pre> |
| <p>In this example, we will only consider the DialogModelOperation and we will return a new DialogTask used to open a dialog.</p> |
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