Question

我有一个从未遇到过的非常奇怪的问题。我在JSF中有一些标记为@Transactional的方法。但是当我在下面的示例中调用fileDb.flush（）函数时

@Transactional
public String toggleHide() {
    fileBean.setFile(fileDb.updateFile(fileBean.getFile()));
    if (getEvent().getSubType().equals("note")) {
        // note
        for (Note note : fileBean.getFile().getNotes()) {
            if (note.getId() == getEvent().getEventId()) {
                note.setHide(opposite(getEvent().isHidden()));
                fileDb.flush();
                break;
            }
        }
    }
}

我收到以下错误

<openjpa-2.4.3-r422266:1833086 nonfatal user error> org.apache.openjpa.persistence.TransactionRequiredException: Can only perform operation while a transaction is active.
at org.apache.openjpa.kernel.BrokerImpl.assertActiveTransaction(BrokerImpl.java:4729)
at org.apache.openjpa.kernel.DelegatingBroker.assertActiveTransaction(DelegatingBroker.java:1385)
at org.apache.openjpa.persistence.EntityManagerImpl.flush(EntityManagerImpl.java:663)
at org.apache.webbeans.custom.persistence.EntityManager$$OwbNormalScopeProxy0.flush(javax/persistence/EntityManager.java)
at uk.me.kissy.database.db.file.FileDb.flush(FileDb.java:379)
at uk.me.kissy.database.db.file.FileDb$$OwbNormalScopeProxy0.flush(uk/me/kissy/database/db/file/FileDb.java)
at uk.me.kissy.file.beans.EventsBean.toggleHide(EventsBean.java:117)

有什么方法可以检查当前交易的状态吗？

OpenJPA没有在方法内部注释@Transactional

0 个答案: