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    <p>This question consists of 2 parts:</p> <p><strong>How to use hibernate inside tapestry managed services?</strong></p> <p>You can inject hibernate session in your service using <code>@Inject</code> annotation:</p> <pre><code>@Inject private Session session; </code></pre> <p>or as a constructor parameter:</p> <pre><code>public MyService buildMyService(Session session) { return new MyAwsomeService(session); } </code></pre> <p>Then you can use it inside service. This session is managed by tapestry as a perthread service. It will be opened on first usage and be closed after end of request.</p> <p><strong>How to use hiberanate transations inside tapestry managed services?</strong></p> <p>You can do this manually using injected <a href="http://tapestry.apache.org/current/apidocs/org/apache/tapestry5/hibernate/HibernateSessionManager.html" rel="nofollow">HibernateSessionManager</a>:</p> <pre><code>@Inject private HibernateSessionManager manager; public void doSomeWork(Entity entity) { try { session.delete(entity); manager.commit(); } catch (Exception e) { manager.abort(); } } </code></pre> <p>Or you can annotate all transactional methods with <code>@CommitAfter</code> and <a href="http://tapestry.apache.org/service-advisors.html" rel="nofollow">advise services</a> using <a href="http://tapestry.apache.org/current/apidocs/org/apache/tapestry5/hibernate/HibernateTransactionAdvisor.html" rel="nofollow">HibernateTransactionAdvisor</a>:</p> <pre><code>public interface MyService { @CommitAfter void doSomeWork(Entity entity); } public class MyTapestryModule { @Match("*Service") public void adviseTransactions(HibernateTransactionAdvisor advisor, MethodAdviceReceiver receiver) { advisor.addTransactionCommitAdvice(receiver); } } </code></pre> <p>Or you can <a href="http://tapestry.apache.org/tapestry-ioc-decorators.html" rel="nofollow">decorate sevices</a> using <a href="http://tapestry.apache.org/current/apidocs/org/apache/tapestry5/hibernate/HibernateTransactionDecorator.html" rel="nofollow">HibernateTransactionDecorator</a>:</p> <pre><code>public class MyTapestryModule { @Match("*Service") public &lt;T&gt; T decorateTransactions(Class&lt;T&gt; serviceInterface, T delegate, String serviceId, HibernateTransactionDecorator decorator) { return decorator.build(serviceInterface, delegate, serviceId); } } </code></pre> <p>How it works. It will start new transaction before method invocation and try to commit after. If any error occurs during method invocation this transaction will be rolled back. </p>
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    1. COWell, first thank you for detailed answer. I should check all these opportunities: will it work or not.
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