I m currently having issues refreshing the data in my PersistenceContext. I have a CMT EJB3 bean which calls a BMT EJB3 bean. In the BMT bean, I do some process logic on an object. I commit the changes and I can see the changes in the database.
程序完成后, 我将返回到我的 CMT 豆。 我从 PersistenceContext (因为 BMT 豆改变了某些值) 中重新获取我的对象(. find () 方法), 但我仍然得到我对象的旧值 。 我甚至尝试了. refresh () 方法, 但数据没有更新 。
是否CMT和BMT豆类使用不同的持久性理论?
持久性环境通过进行中的交易传播,除了正常的持久性环境(例如不延长)之外,其L1缓存的寿命范围也扩大到同一交易。
所以,如果你在你的BMT豆中开始新的交易, 与其持久性环境互动,然后承诺, 那么所谓的 CMT豆在其持久性环境中将没有更新的值。
读取 DB 中的新值应该有效。 因此, 如果您看到 DB 中的这些变化, 特别是如果 CMT 和 BMT 豆子被在同一应用中( 因此没有 L2 不一致效果), 那么 < code> rerefresh < /code > 实际上应该有效 。
使用 CMT 豆子的新呼叫会怎么样? 它能看到更新的值吗?
Hi have this j2ee web application developed using spring framework. I have a problem with rendering mnessages in nihongo characters from the properties file. I tried converting the file to ascii using ...
Check this, List<String> list = new ArrayList<String>(); for (int i = 0; i < 10000; i++) { String value = (""+UUID.randomUUID().getLeastSignificantBits()).substring(3, ...
I am in the middle of solving a problem where I think it s best suited for a decorator and a state pattern. The high level setting is something like a sandwich maker and dispenser, where I have a set ...
I have been trying to execute a MS SQL Server stored procedure via JDBC today and have been unsuccessful thus far. The stored procedure has 1 input and 1 output parameter. With every combination I ...
I have a system which contains multiple applications connected together using JMS and Spring Integration. Messages get sent along a chain of applications. [App A] -> [App B] -> [App C] We set a ...
If I m given two Java Libraries in Jar format, 1 having no bells and whistles, and the other having lots of them that will mostly go unused.... my question is: How will the larger, mostly unused ...
I have a Class variable that holds a certain type and I need to get a variable that holds the corresponding array class. The best I could come up with is this: Class arrayOfFooClass = java.lang....
I m working on a Java desktop application that reads and writes from/to different files. I think a better solution would be to replace the file system by a SQLite database. How hard is it to migrate ...
