| chapter:CustomizationsResources[TO DO - INSERT INTO Customizations] |
| |
| section:Resources[Resources] |
| |
| ul[ |
| item[If you need a machanism to fill some data for the first time you use a model, you can provide |
| a specific implementation of ref:ResourceManager[Resource Manager].] |
| item[If you want to interact with Resource Loading, you can provide a specific ref:ResourceLoader[Resource |
| Loader]] |
| ] |
| |
| For what concern saving objects, there are some specific parts that can be customized: |
| |
| ul[ |
| item[ref:ResourceSaveManager[Resource Save Manager], if you want to manage the save.] |
| ] |
| |
| section2:ResourceLoader[Resource Loader] |
| |
| The class codeRef[org.eclipse.emf.parsley.resource.ResourceLoader] can be used to handle resource loading. |
| This class uses internally the ref:ResourceManager[Resource Manager]. |
| |
| |
| section2:ResourceManager[Resource Manager] |
| |
| Tasks concerning an EMF codeRef[org.eclipse.emf.ecore.resource.Resource] are |
| delegated to codeRef[org.eclipse.emf.parsley.resource.ResourceManager]. |
| |
| One of such tasks is initializing the resource, e.g., when, after loading, it is |
| found empty. You can derive from this class (and bind it in the Guice module) and provide a custom implementation |
| of the method e[initialize]. |
| |
| section2:ResourceSaveManager[Resource Save Manager] |
| |
| Resource saving is delegated to codeRef[org.eclipse.emf.parsley.edit.ResourceSaveManager] |
| which, by defaults only saves the passed codeRef[org.eclipse.emf.ecore.resource.Resource]. |
| You can inject your own save manager and implement the method code[precondition(Resource)], for |
| instance, you may want to validate the resource before saving, and in case the validation |
| fails to return code[false]. If the precondition is code[false] the default implementation |
| will not save the resource (and in turn will return code[false]). |
| |
| section3:ValidateResourceSaveManager[Validate Resource Save Manager] |
| |
| We provide an example of custom resource save manager: codeRef[org.eclipse.emf.parsley.edit.ValidateResourceSaveManager], |
| we show here only relevant parts to give an example: |
| |
| code[Java][ |
| public class ValidateResourceSaveManager extends ResourceSaveManager { |
| |
| @Override |
| protected boolean precondition(Resource resource) { |
| return super.precondition(resource) && validateModel(resource); |
| } |
| |
| protected boolean validateModel(Resource resource) { |
| for (EObject eObject : resource.getContents()) { |
| Diagnostic diagnostic = Diagnostician.INSTANCE.validate(eObject); |
| if (diagnostic.getSeverity() == Diagnostic.ERROR) { |
| // SKIPPED: present the errors |
| return false; |
| } else if (diagnostic.getSeverity() == Diagnostic.WARNING) { |
| // SKIPPED: present the warnings |
| } |
| } |
| return true; |
| } |
| } |
| ] |
| |
