public override TransactionHandlerState BeforeCommit(ReadableTransactionState state, KernelTransaction transaction, StorageReader storageReader)
{
// The iterator grabs a snapshot of our list of handlers
IEnumerator <TransactionEventHandler> handlers = _transactionEventHandlers.GetEnumerator();
//JAVA TO C# CONVERTER TODO TASK: Java iterators are only converted within the context of 'while' and 'for' loops:
if (!handlers.hasNext())
{
// Use 'null' as a signal that no event handlers were registered at beforeCommit time
return(null);
}
TransactionData txData = state == null ? EMPTY_DATA : new TxStateTransactionDataSnapshot(state, _proxySpi, storageReader, transaction);
TransactionHandlerState handlerStates = new TransactionHandlerState(txData);
while (handlers.MoveNext())
{
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: org.neo4j.graphdb.event.TransactionEventHandler<?> handler = handlers.Current;
TransactionEventHandler <object> handler = handlers.Current;
try
{
handlerStates.Add(handler).State = handler.BeforeCommit(txData);
}
catch (Exception t)
{
handlerStates.Failed(t);
}
}
return(handlerStates);
}
public virtual HandlerAndState Add <T1>(TransactionEventHandler <T1> handler)
{
HandlerAndState result = new HandlerAndState(handler);
States.Add(result);
return(result);
}
public void AsynchronousEventCallbackCaller(byte[] a, OperationId b)
{
TransactionEventHandler asynchronousEvents = AsynchronousEvents;
if (asynchronousEvents != null)
{
asynchronousEvents(this, a, b);
}
}
public override TransactionEventHandler <T> UnregisterTransactionEventHandler <T>(TransactionEventHandler <T> handler)
{
return(_database.unregisterTransactionEventHandler(handler));
}
public override void UnregisterTransactionEventHandler <T>(TransactionEventHandler <T> handler)
{
throw new System.NotSupportedException();
}
public virtual TransactionEventHandler <T> UnregisterTransactionEventHandler <T>(TransactionEventHandler <T> handler)
{
return(UnregisterHandler(this._transactionEventHandlers, handler));
}
public virtual TransactionEventHandler <T> RegisterTransactionEventHandler <T>(TransactionEventHandler <T> handler)
{
this._transactionEventHandlers.add(handler);
return(handler);
}
public override void UnregisterTransactionEventHandler <T>(TransactionEventHandler <T> handler)
{
_dataSource.neoStoreDataSource.TransactionEventHandlers.unregisterTransactionEventHandler(handler);
}
