SingleCommitTransaction<T> class
abstract
A helper class to easily create single commit transaction.
Single commit transactions are transaction that can only be commit once and become invalid after. This class helps in that it handels this case and automatically throws a AlreadyComittedError if someone tries to commit it twice.
Instead of commitUpdate and commitDelete, you have to implement commitUpdateImpl and commitDeleteImpl. They follow the same semantics as their originals, beeing called by them after it was verified the transaction was not committed yet.
- Implemented types
Constructors
Properties
- eTag → String
-
The current eTag of the entry.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → String
-
The key of the entry beeing modified in the transaction
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- value → T?
-
The current value of the entry.
no setterinherited
Methods
-
commitDelete(
) → Future< void> -
Tries to commit the deletion of the entry.
override
-
commitDeleteImpl(
) → Future< void> - See commitDelete
-
commitUpdate(
T data) → Future< T?> -
Tries to commit an update of the entry to
data.override -
commitUpdateImpl(
T data) → Future< T?> - See commitUpdate
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited