WIP: Storage protocol

This commit is contained in:
John Rommel Estropia
2016-03-02 08:02:33 +09:00
parent f71ad4c577
commit 99189d160f
12 changed files with 338 additions and 95 deletions

View File

@@ -189,24 +189,6 @@ public final class AsynchronousDataTransaction: BaseDataTransaction {
super.delete(objects)
}
/**
Rolls back the transaction by resetting the `NSManagedObjectContext`. After calling this method, all `NSManagedObjects` fetched within the transaction will become invalid. This method should not be used after the `commit()` method was already called once.
*/
@available(*, deprecated=1.3.4, obsoleted=2.0.0, message="Resetting the context is inherently unsafe. This method will be removed in the near future. Use `beginUnsafe()` to create transactions with `undo` support.")
public func rollback() {
CoreStore.assert(
!self.isCommitted,
"Attempted to rollback an already committed \(typeName(self))."
)
CoreStore.assert(
self.transactionQueue.isCurrentExecutionContext(),
"Attempted to rollback a \(typeName(self)) outside its designated queue."
)
self.context.reset()
}
// MARK: Internal
@@ -253,4 +235,22 @@ public final class AsynchronousDataTransaction: BaseDataTransaction {
// MARK: Private
private let closure: (transaction: AsynchronousDataTransaction) -> Void
// MARK: Deprecated
@available(*, deprecated=1.3.4, obsoleted=2.0.0, message="Resetting the context is inherently unsafe. This method will be removed in the near future. Use `beginUnsafe()` to create transactions with `undo` support.")
public func rollback() {
CoreStore.assert(
!self.isCommitted,
"Attempted to rollback an already committed \(typeName(self))."
)
CoreStore.assert(
self.transactionQueue.isCurrentExecutionContext(),
"Attempted to rollback a \(typeName(self)) outside its designated queue."
)
self.context.reset()
}
}