Informs this document provider about upcoming changes of the given element. The changes might cause change notifications specific for the type of the given element. If this provider manages a document for the given element, the document provider must not change the document because of the notifications received after
aboutToChange
has been and before
changed
is called. In this case, it is assumed that the document is already up to date, e.g., a save operation is a typical case.
The concrete nature of the change notification depends on the concrete type of the given element. If the element is, e.g., an IResource
the notification is a resource delta.
@param element the element, or null