public void RemoveRelation(Relation relation)
{
relations.Remove(relation);
}
/// <exception cref="ArgumentException">
/// Cannot create relationship between <paramref name="first"/>
/// and <paramref name="second"/>.
/// </exception>
/// <exception cref="ArgumentNullException">
/// <paramref name="first"/> is null.-or-
/// <paramref name="second"/> is null.
/// </exception>
public Relation Add(Entity first, Entity second, RelationType type)
{
if (first == null)
{
throw new ArgumentNullException("first");
}
if (second == null)
{
throw new ArgumentNullException("second");
}
if (first is TypeBase && second is TypeBase &&
((TypeBase)first).Language != ((TypeBase)second).Language)
{
throw new ArgumentException("error_cannot_create_relation");
}
Relation relation = null;
try {
switch (type)
{
case RelationType.Association:
case RelationType.Composition:
case RelationType.Aggregation:
if (first is TypeBase && second is TypeBase)
{
relation = AddAssociation((TypeBase)first, (TypeBase)second, type);
}
break;
case RelationType.Generalization:
if (first is TypeBase && second is TypeBase)
{
relation = AddGeneralization((TypeBase)first, (TypeBase)second);
}
break;
case RelationType.Realization:
if (first is TypeBase && second is InterfaceType)
{
relation = AddRealization((TypeBase)first, (InterfaceType)second);
}
break;
case RelationType.Dependency:
if (first is TypeBase && second is TypeBase)
{
relation = new Dependency((TypeBase)first, (TypeBase)second);
}
break;
case RelationType.Nesting:
if (first is FieldContainer && second is TypeBase)
{
relation = AddNesting((FieldContainer)first, (TypeBase)second);
}
break;
case RelationType.CommentRelation:
if (first is Comment)
{
relation = new CommentRelation((Comment)first, second);
}
else
{
relation = new CommentRelation(first, (Comment)second);
}
break;
}
}
catch (ArgumentException ex) {
throw new ArgumentException("error_cannot_create_relation" + ex.Message);
}
if (relation == null)
{
throw new ArgumentException("error_cannot_create_relation");
}
else
{
InnerList.Add(relation);
}
return(relation);
}
public RelationEventArgs(Relation relation)
{
this.relation = relation;
}
