/**
* Overridden to return the type arguments of the generic type of the adapted {@link
* TypedElement}.
*
* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#getChildren(java.lang.Object)
*/
@Override
public Collection<?> getChildren(Object object) {
TypedElement typedElement;
Collection<Object> result = null;
// cast the typed element
typedElement = (TypedElement) object;
// check if the typed element has a generic type and that one is a
// ComplexGenericType
if (typedElement.getGenericType() != null
&& typedElement.getGenericType() instanceof ComplexGenericType) {
ComplexGenericType genericType = (ComplexGenericType) typedElement.getGenericType();
// check if the generic type has type arguments
if (!genericType.getTypeArgument().isEmpty()) {
// add the type arguments to the list of children
result = new ArrayList<Object>(genericType.getTypeArgument());
result.addAll(super.getChildren(object));
}
}
return result == null ? super.getChildren(object) : result;
}
/**
* @see org.eclipse.emf.edit.provider.ItemPropertyDescriptor#setPropertyValue(java.lang.Object,
* java.lang.Object)
*/
@Override
public void setPropertyValue(Object object, Object value) {
TypedElement typedElement = (TypedElement) object;
// the value can either be a type parameter ...
if (value instanceof TypeParameter) {
TypeParameter typeParameter = (TypeParameter) value;
// create a new generic type for type parameters and set its
// referenced type parameter
ParameterGenericType genericType = PivotModelFactory.eINSTANCE.createParameterGenericType();
genericType.setTypeParameter(typeParameter);
setGenericType(typedElement, genericType);
}
// ... or a normal type
else if (value instanceof Type) {
Type type = (Type) value;
// check if the type has any type parameters
if (!type.getOwnedTypeParameter().isEmpty()) {
// create a new complex generic type and set the given type
// as a reference
ComplexGenericType genericType = PivotModelFactory.eINSTANCE.createComplexGenericType();
genericType.setUnboundType(type);
// append type arguments for each type parameter
for (int i = 0, size = type.getOwnedTypeParameter().size(); i < size; i++) {
genericType.getTypeArgument().add(PivotModelFactory.eINSTANCE.createTypeArgument());
}
setGenericType(typedElement, genericType);
}
// just a normal type without type parameters
else {
// remove any previously created generic types
setGenericType(typedElement, null);
super.setPropertyValue(object, value);
}
}
}
