Which servers support spring transaction

These two endpoints inserts data into a database. The sample is in its full as a unit test. First of all we setup the usual spring stuff in its configuration file. You are of course free to use any of the Spring based TransactionManager, eg. All the beans needed to be configured is standard Spring beans only, eg. Then we are ready to define our Camel routes.

We have two routes: 1 for success conditions, and 1 for a forced rollback condition. This is after all based on a unit test. Notice that we mark each route as transacted using the transacted tag. That is all that is needed to configure a Camel route as being transacted. Just remember to use the transacted DSL. The rest is standard Spring XML to setup the transaction manager. In this sample we want to listen for messages on a queue and process the messages with our business logic java code and send them along.

Since it is based on a unit test the destination is a mock endpoint. And then we configure our routes. Notice that all we have to do is mark the route as transacted using the transacted tag. When a route is marked as transacted using transacted Camel will automatic use TransactionErrorHandler as the Error Handler.

This error handler supports basically the same feature set as the DefaultErrorHandler , so you can for instance use Exception Clause as well. When following the Spring Transactions documentation it is tempting to annotate your integration test with Transactional then seed your database before firing up the route to be tested and sending a message in.

The following sections describe the details of redesigning a J2EE-based application to a Spring-based application. Where appropriate, these sections include sample code. In most cases the sample code is from MedRec-Spring. In Spring, references to other beans injected properties are configured via a Spring configuration XML file, applicationContext-web. Then, in the application code, BEA defined setter methods for the corresponding bean. For example:. In Spring, you must configure JMS services so that they are provided to the application during runtime.

You can do this via a Spring Bean that represents a messaging destination. Lazy instantiation fetches the Spring Bean when it is invoked. If all the operation are successful then perform commit otherwise rollback all the operations.

Spring framework provides an abstract layer on top of different underlying transaction management APIs. Spring supports both programmatic and declarative transaction management. EJBs require an application server, but Spring transaction management can be implemented without the need of an application server.

Local transactions are specific to a single transactional resource like a JDBC connection, whereas global transactions can span multiple transactional resources like transaction in a distributed system. Local transaction management can be useful in a centralized computing environment where application components and resources are located at a single site, and transaction management only involves a local data manager running on a single machine.

Local transactions are easier to be implemented. Global transaction management is required in a distributed computing environment where all the resources are distributed across multiple systems. In such a case, transaction management needs to be done both at local and global levels.

A distributed or a global transaction is executed across multiple systems, and its execution requires coordination between the global transaction management system and all the local data managers of all the involved systems. That gives you extreme flexibility, but it is difficult to maintain.