transactionmanager

问题 I am using TransferManager to upload a video. As TransferManager is asynchronous, How can i get notified when the upload is successfully completed? 回答1: Using TransferManager for uploading returns a Upload object, which is a subclass of Transfer. This object has methods for polling for status ( isDone , getProgress ) or you can also register a ProgressListener to receive events as the transfer is processed. 来源： https://stackoverflow.com/questions/13577384/how-to-get-notified-when-the-upload

问题 I am using TransferManager to upload a video. As TransferManager is asynchronous, How can i get notified when the upload is successfully completed? 回答1: Using TransferManager for uploading returns a Upload object, which is a subclass of Transfer. This object has methods for polling for status ( isDone , getProgress ) or you can also register a ProgressListener to receive events as the transfer is processed. 来源： https://stackoverflow.com/questions/13577384/how-to-get-notified-when-the-upload

问题 I had done this programmatically at some point - that is creating two entity managers with different data sources and providing them for different services. However now I am building a webApp using Spring. Thing is that I want to have two entity managers responsible for separate databases. So in my case, half of DAO's would be using emNumber1 , and second half would be using emNumber2 . Oh and totally different persistence units as I only need to read data from DB1 and then process it and

问题 In my application, I need to use pure JDBC together with Guice. However, Guice doesn't provide any built-in support to manage transactions. guice-persist only provides support based on JPA, which I cannot use. so I tried to implement a simple solution to manage transactions with Guice and JDBC. here is the first version: use TransactionHolder to store the transaction per thread. public class JdbcTransactionHolder { private static ThreadLocal<JdbcTransaction> currentTransaction = new

问题 I found the following thread: How exactly JdbcTemplate with TransactionManager works together? The first sentence of that: As far as I understood DataSourceTransactionManager binds a JDBC connection from the specified DataSource to the current thread, allowing for one thread-bound Connection per DataSource. If it's a pool of connections, it will take one of the available connections. ... is exactly what I want to know. When using a transaction manager, do you end up with each thread having it

问题 For each client, I have separate databases but business logic and tables are same for each client. I want common service and dao layer for each client. In dao, I select datasource based on logged user client. In @Transactional , I have to pass bean id of transaction manager. How to make common service layer with @Transactional annotation. Same question is here Multiple transaction managers - Selecting a one at runtime - Spring Choose between muliple transaction managers at runtime but nobody

问题 I get "No Session found for current thread". I suppose the problem is in mixing declarative xml beans and annotated beans. Following, I'll resume my config. MyLibrary Project Spring 3.1.4 Hibernate 4 applicationContext.xml <tx:annotation-driven transaction-manager="transactionManager" /> <context:component-scan base-package="com.mycompany.dao.core, com.mycompany.services.core, com.mycompany.permissionEvaluator" /> <import resource="model-core-security.xml" /> <bean id="transactionManager"

问题 What is the alternative of rollback transaction in spring except @Transactional annotation. I have used this annotation but i want the way by which i can rollback transaction in catch block. Is there any way? Thanx in advance. 回答1: Here is a draft: public class SomeService implements SomeInterface { private SomeDao thisDaoWrapsJdbcTemplate; private PlatformTransactionManager transactionManager; public void setTransactionManager( PlatformTransactionManager transactionManager ) { this

问题 I have 2 clients using same Spring based REST Application deployed in tomcat. Depending on client I need to choose between data sources and transaction manager. How do I choose at runtime, which transaction manager to use? <bean id="First_dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="url" value="${First_jdbc.url}" /> <property name="driverClassName" value="${First_jdbc.driverClassName}" /> <property name="username" value="${First_jdbc

问题 I changed the sessionFactory bean creation in an existing application because of various reasons from : <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="mappingLocations" ref="hibernateMappingFiles" /> <property name="hibernateProperties" ref="hibernateProperties" /> </bean> <tx:annotation-driven transaction-manager="transactionManager" /> <bean id="transactionManager" class="org