birt ean 128

birt ean 128

birt ean 128

birt gs1 128

birt ean 128

birt ean 128,
birt ean 128,

birt ean 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,

birt gs1 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt ean 128,

When a conversation starts, a new Session must be opened and bound with ManagedSessionContext.bind() to serve the first request in the conversation. You also have to set FlushMode.MANUAL on that new Session, because you don t want any persistence context synchronization to occur behind your back. All data-access code that now calls sessionFactory.getCurrentSession() receives the Session you bound. When a request in the conversation completes, you need to call ManagedSessionContext.unbind() and store the now disconnected Session somewhere until the next request in the conversation is made. Or, if this was the last request in the conversation, you need to flush and close the Session.

Moving operations-managed deployment into the core development cycle won t be easy. Developers will have to work with operations earlier than normal; operations will have to deploy raw code and help support development tasks such as debugging, rebuilding clean systems, and just having more boxes to manage. These reasons are exactly why you need to do it: these are the problems that the teams need to solve together, automating all of the build, test, and deploy processes, then working together to address the manageability and scalability of the system. Try it; it might just work.

All these steps can be implemented in an interceptor. Creating a conversation interceptor You need an interceptor that is triggered automatically for each request event in a conversation. If you use EJBs, as you ll do soon, you get much of this infrastructure code for free. If you write a non- Java EE application, you have to write your own interceptor. There are many ways how to do this; we show you an abstract interceptor that only demonstrates the concept. You can find working and tested interceptor implementations for web applications in the CaveatEmptor download in the org.hibernate.ce.auction.web.filter package. Let s assume that the interceptor runs whenever an event in a conversation has to be processed. We also assume that each event must go through a front door controller and its execute() action method the easiest scenario. You can now wrap an interceptor around this method; that is, you write an interceptor that is

Ant cannot directly address source level or operations issues, but it can produce different WAR and EAR files for each targeted platform, and then deploy to them. It can also execute functional tests after deployment to validate that the system does behave as expected. It can also be the core of any continuous integration process, automating the build and deployment of the software.

1. s = sf.openSession() 3. s.setFlushMode(MANUAL) s = MSC.unbind() MSC.bind(s)

Have a single source tree The first tactic is to have a unified source tree, compiling all your code for all possible target systems in one single <javac> statement. With a unified source tree, you can build all the core server files together, and then create a single JAR of these classes. Ant can incorporate this JAR file into different WAR or EAR files, one for each target platform or system. These custom archive files can contain custom libraries and deployment descriptors. Have a unified target for creating the archive files As well as a single source tree, we want to have single targets to create the web.xml and WAR/EAR files. Ideally, we would like to have a single archive file we could reuse, but that is unrealistic because of the differences in library files and web.xml configurations that different target systems will need. To enable single targets with different configurations, we use property files and set all the different options for a build, as shown in figure 18.3.

5. MSC.bind(s)

Figure 18.3 Creating custom WAR files from a single source file, using server-specific properties to controlling the <webdoclet> and <war> tasks

7. s = MSC.unbind() s. ush() 8. commit() 9. s.close()

2. s.beginTransaction()