Readonly isThe transaction's transient state. This attribute is checked by the transaction manager after the transaction's Execute() method is called. If the transient state is false, a reference to the transaction is held by the transaction manager so that the transactions' undoTransaction() and redoTransaction() methods can be called. If the transient state is true, the transaction manager returns immediately after the transaction's doTransaction() method is called, no references to the transaction are maintained. Transient transactions cannot be undone or redone by the transaction manager.
Optional aInstancePtr: objectA run time mechanism for interface discovery.
NS_OK if the interface is supported by the associated instance, NS_NOINTERFACE if it is not.
aInstancePtr must not be null.
[in] A requested interface IID
[out] A pointer to an interface pointer to receive the result.
Attempts to merge a transaction into "this" transaction. Both transactions must be in their undo state, doTransaction() methods already called. The transaction manager calls this method to coalesce a new transaction with the transaction on the top of the undo stack. This method returns a boolean value that indicates the merge result. A true value indicates that the transactions were merged successfully, a false value if the merge was not possible or failed. If true, the transaction manager will Release() the new transacton instead of pushing it on the undo stack.
the previously executed transaction to merge.
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The nsITransaction interface.
This interface is implemented by an object that needs to execute some behavior that must be tracked by the transaction manager.