EclipseCon 2005: Everything You Always Wanted to do with EMF (But were Afraid to Ask)

Dave Steinberg and Ed Merks IBM Rational Software Toronto, Canada EMF and XSD Projects Everything you always wanted to do with EMF* *But were afraid to ask

Topics ,[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction to the Eclipse Modeling Framework ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Model Conversion and Code Generation XML Schema Java Model Ecore UML I M P O R T GENERATE Java Edit Java Editor

Generated Code ,[object Object],[object Object],[object Object],public interface PurchaseOrder extends EObject { EList getItems(); String getComment(); void setComment(String value); ... } public class PurchaseOrderImpl extends EObjectImpl implements PurchaseOrder { protected EList items = null; ... }

Reflective Interface for Model Objects ,[object Object],[object Object],public interface EObject extends Notifier { EClass eClass(); Resource eResource(); EObject eContainer(); EReference eContainmentFeature(); boolean eIsProxy(); Object eGet(EStructuralFeature feature, boolean resolve); void eSet(EStructuralFeature feature, Object newValue); boolean eIsSet(EStructuralFeature feature); void eUnset(EStructuralFeature feature); ... }

Customizing Interfaces ,[object Object],public interface PurchaseOrder { List getItems(); String getComment(); void setComment(String value); Date getOrderDate(); ... } Doesn’t extend EObject Setter suppressed Ordinary List

Customizing Interfaces: Taking Out the “E” ,[object Object],[object Object],[object Object],[object Object]

Customizing Interfaces: Suppressing Accessors ,[object Object],[object Object],[object Object]

Demo: Customizing Generated Interfaces ,[object Object],[object Object],[object Object]

Notifiers and Observers ,[object Object],[object Object],public interface Notifier { EList eAdapters(); boolean eDeliver(); void eSetDeliver(boolean deliver); void eNotify(Notification notification); } item.eAdapters().add(itemObserver);

Notifications ,[object Object],public interface Notification { Object getNotifier(); int getEventType(); int getFeatureID(Class expectedClass); Object getFeature(); Object getOldValue(); Object getNewValue(); boolean wasSet(); boolean isTouch(); boolean isReset(); int getPosition(); boolean getOldBooleanValue(); boolean getNewBooleanValue(); ... }

Example: Simple Observer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Adapters ,[object Object],[object Object],public interface Adapter { void notifyChanged(Notification notification); Notifier getTarget(); boolean isAdapterForType(Object type); ... }

Adapter Factories ,[object Object],[object Object],public interface AdapterFactory { boolean isFactoryForType(Object type); Object adapt(Object object, Object type); Adapter adapt(Notifier target, Object type); ... } POAdapter adapter = (POAdapter)poAdapterFactory.adapt(order, POAdapter.class);

Example: Adapter and Adapter Factory ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Content Adapters ,[object Object],[object Object],[object Object],[object Object]

Example: Content Adapter ,[object Object],[object Object]

Validation Framework ,[object Object],[object Object],[object Object],[object Object],public interface EValidator { boolean validate(EObject eObject, DiagnosticChain diagnostics, Map context); boolean validate(EClass eClass, EObject eObject, DiagnosticChain diagnostics, Map context); boolean validate(EDataType eDataType, Object value, DiagnosticChain diagnostics, Map context); ... }

Framework EValidator Implementations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Generated EValidator Implementations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Demo: Constraints and Validation ,[object Object],[object Object],[object Object]

Model Persistence ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Customizing XML Persistence ,[object Object],[object Object],[object Object],[object Object],[object Object],Map options = new HashMap(); options.put(XMLResource.OPTION_EXTENDED_META_DATA, ExtendedMetaData.INSTANCE); resource.save(options);

Demo: Customizing XML Persistence ,[object Object],[object Object],[object Object],[object Object],[object Object]

Summary ,[object Object],[object Object],[object Object],[object Object],[object Object]

Additional Information ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

EclipseCon 2005: Everything You Always Wanted to do with EMF (But were Afraid to Ask)

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EclipseCon 2005: Everything You Always Wanted to do with EMF (But were Afraid to Ask)

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