/**
* Returns true if some modelelement may be owned by the given namespace
*
* @param m
* @param ns
* @return boolean
*/
public boolean isValidNamespace(MModelElement m, MNamespace ns) {
if (m == null || ns == null) return false;
if (ns.getModel() != m.getModel()) return false;
if (m == ns) return false;
if (m instanceof MNamespace && m == getFirstSharedNamespace((MNamespace) m, ns)) return false;
if (ns instanceof MInterface || ns instanceof MActor || ns instanceof MUseCase) return false;
else if (ns instanceof MComponent) return (m instanceof MComponent && m != ns);
else if (ns instanceof MCollaboration) {
if (!(m instanceof MClassifierRole
|| m instanceof MAssociationRole
|| m instanceof MGeneralization
|| m instanceof MConstraint)) return false;
} else if (ns instanceof MPackage) {
if (!(m instanceof MPackage
|| m instanceof MClassifier
|| m instanceof MAssociation
|| m instanceof MGeneralization
|| m instanceof MDependency
|| m instanceof MConstraint
|| m instanceof MCollaboration
|| m instanceof MStateMachine
|| m instanceof MStereotype)) return false;
} else if (ns instanceof MClass) {
if (!(m instanceof MClass
|| m instanceof MAssociation
|| m instanceof MGeneralization
|| m instanceof MUseCase
|| m instanceof MConstraint
|| m instanceof MDependency
|| m instanceof MCollaboration
|| m instanceof MDataType
|| m instanceof MInterface)) return false;
} else if (ns instanceof MClassifierRole) {
if (!(((MClassifierRole) ns).getAvailableContentses().contains(m)
|| ((MClassifierRole) ns).getAvailableFeatures().contains(m))) return false;
}
if (m instanceof MStructuralFeature) {
if (!isValidNamespace((MStructuralFeature) m, ns)) return false;
} else if (m instanceof MGeneralizableElement) {
if (!isValidNamespace((MGeneralizableElement) m, ns)) return false;
} else if (m instanceof MGeneralization) {
if (!isValidNamespace((MGeneralization) m, ns)) return false;
}
if (m instanceof MAssociation) {
if (!isValidNamespace((MAssociation) m, ns)) return false;
} else if (m instanceof MCollaboration) {
if (!isValidNamespace((MCollaboration) m, ns)) return false;
}
return true;
}
