itemIsBatch() returns true if the item at aIndex is a batch. Note that
currently there is no requirement for a TransactionManager implementation
to associate a toplevel nsITransaction with a batch so it is possible for
itemIsBatch() to return true and getItem() to return null. However, you
can still access the transactions contained in the batch with a call to
getChildListForItem().
| aIndex | The index of the item in the list. |
getItem() returns the transaction at the given index in the list. Note that
a null can be returned here if the item is a batch. The transaction
returned is AddRef’d so it is up to the caller to Release the transaction
when it is done.
| aIndex | The index of the item in the list. |
getData() returns the data (of type nsISupports array) associated with
the transaction list.
getNumChildrenForItem() returns the number of child (auto-aggreated)
transactions the item at aIndex has.
| aIndex | The index of the item in the list. |
getChildListForItem() returns the list of children associated with the
item at aIndex. Implementations may return null if there are no children,
or an empty list. The list returned is AddRef’d so it is up to the caller
to Release the transaction when it is done.
| aIndex | The index of the item in the list. |
The number of transactions contained in this list.