Mercurial > lada > lada-server
view src/main/java/de/intevation/lada/manage/DataManager.java @ 170:18b234ef3733
New interface for data manager and generic implementation of a data manager.
author | Raimund Renkert <rrenkert@intevation.de> |
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date | Mon, 24 Jun 2013 14:11:48 +0200 |
parents | |
children | bf7488ec0e8d |
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package de.intevation.lada.manage; import javax.ejb.EJBTransactionRolledbackException; import javax.ejb.Stateless; import javax.ejb.TransactionAttribute; import javax.ejb.TransactionAttributeType; import javax.inject.Inject; import javax.inject.Named; import javax.persistence.EntityExistsException; import javax.persistence.EntityManager; import javax.persistence.TransactionRequiredException; @Stateless @Named("datamanager") public class DataManager implements Manager { @Inject private EntityManager em; @Override @TransactionAttribute(TransactionAttributeType.REQUIRED) public void create(Object object) throws EntityExistsException, IllegalArgumentException, EJBTransactionRolledbackException, TransactionRequiredException { em.persist(object); } @Override @TransactionAttribute(TransactionAttributeType.REQUIRED) public void update(Object object) throws EntityExistsException, IllegalArgumentException, EJBTransactionRolledbackException, TransactionRequiredException { em.merge(object); } @Override @TransactionAttribute(TransactionAttributeType.REQUIRED) public <T> void delete(String id, Class<T> clazz) throws Exception { } }