transactions

问题 Long question short : If I would need to loop through list of Model Objects, and save them individually, I am unsure how to go about that. To understand this correctly, Assuming, my Model Name = Foo example : Model Object : f1 = Foo 1 { name : foo, alias : Fooo 1, description : Fooo 1 } f2 = Foo 2 { name : foo_2, alias : Fooo, description : Fooo 2 } f3 = Foo 3 { name : foo_3, alias : Fooo 3, description : Fooo } Now what I would like to do is change : name for (Foo 1) alias for (Foo 2)

问题 I have the following scenario: Parent process start TransactionScope, a token identifying the transaction is created using TransactionInterop.GetTransmitterPropagationToken, inserts data to database. TransactionScope completes. Another process is started, using the above mentioned token it creates Transaction which is then used to create TransactionScope. This process also inserts data to database. TransactionScope completes and is disposed. Parent process tries to dispose its

问题 I have the following scenario: Parent process start TransactionScope, a token identifying the transaction is created using TransactionInterop.GetTransmitterPropagationToken, inserts data to database. TransactionScope completes. Another process is started, using the above mentioned token it creates Transaction which is then used to create TransactionScope. This process also inserts data to database. TransactionScope completes and is disposed. Parent process tries to dispose its

问题 Ignite ignite = Ignition.start(); How to make this ignite instance fall into existing jta transaction.. Tried.. TransactionConfiguration transactionConfiguration = new TransactionConfiguration(); Factory factory = FactoryBuilder.factoryOf(userTransactionManager); transactionConfiguration.setTxManagerFactory(factory); transactionConfiguration.setUseJtaSynchronization(true); How to corellate these TransactionConfiguration with the instance of ignite..!! Any help..! Referred .. http:/

问题 This code doesn't work when I run it and I don't understand why it shouldn't, the error is that a table already exists so it doesn't seem so much as an actual bug but a bug in the verification process, perhaps I am wrong. it's something from a procedure so doesn't work to use go's everywhere. in my first question I grossly oversimplified my problem these were my constraints : I use temporary tables to communicate between procedures, in this case I needed to use the same procedure twice but

问题 I have read that the default isolation level for ADO.NET (when transactions aren't used i.e. each statement is executed as an atomic operation) is 'READ COMMITTED' and the default isolation level for TransactionScope (http://msdn.microsoft.com/en-us/library/system.transactions.transactionscope.aspx) is 'SERIALIZABLE'. Is there a reason for this? I have read many webpages on this subject, but I have not yet found an answer to my specific question. 回答1: A Transaction is a unit of work, which

问题 I am using greendao as ORM library in my Android project and have problems understanding the behaviour of transactions. greendao offers an API runInTx(Runnable r) . My question is, how will two calls of this method from different Threads will be handled? Thread 1 public void thread1() { DaoManager.INSTANCE.getDaoSession().runInTx(new Runnable() { doQueries(); doInsertsAndUpdates(); } } Thread 2 public void thread2() { DaoManager.INSTANCE.getDaoSession().runInTx(new Runnable() { doQueries();

问题 How are the connections handled in a single transaction when we open close connections for each statement in C#? The scenario is with the same connection string and the connection is opened and closed multiple types, once for every statement. Consider the following example void updateSomething() { using (SqlConnection connection = new SqlConnection( "Integrated Security=SSPI;Initial Catalog=Northwind")) { connection.Open(); // Execute the statements connection.Close(); } } When I'm executing

问题 I have JUnit4 test class, annotated with @Transactional with this method in it, along with other methods: @Test public void testDiscoverArtworksByTitle() { FullTextEntityManager ftem = Search.getFullTextEntityManager(this.entityManager); this.prepareArtworksForListing(); ftem.flushToIndexes(); List<ArtworkListItem> listItems = this.artworkService.discoverArtworksByTitle("Die Hard"); Assert.assertNotEquals("There are some items in the list", 0, listItems.size()); // housekeeping ftem.purgeAll

问题 This question follows directly from a previous question of mine in SO. I am still unable to grok the concept of JMS sessions being used as a transactional unit of work . From the Java Message Service book : The QueueConnection object is used to create a JMS Session object (specifically, a Queue Session), which is the working thread and transactional unit of work in JMS. Unlike JDBC, which requires a connection for each transactional unit of work, JMS uses a single connection and multiple