Adds all of the elements in the specified set to this attribute. The outcome is the same as if the
add(Attribute)
operation had been applied to this attribute set successively with each element from the specified set. If none of the categories in the specified set are the same as any categories in this attribute set, the
addAll()
operation effectively modifies this attribute set so that its value is the
union of the two sets.
The behavior of the addAll()
operation is unspecified if the specified set is modified while the operation is in progress.
If the addAll()
operation throws an exception, the effect on this attribute set's state is implementation dependent; elements from the specified set before the point of the exception may or may not have been added to this attribute set.