nice.. do you mind if I commit it to the trunk? can you create some unit testing too?
On Fri, Oct 23, 2009 at 3:27 PM, Bill Tarr <[email protected]> wrote: > Here is an alternate version of JPAVariablePersister for people who are > already using Hibernate xml mapping files. > > This implementation has some downsides, but it seems to be working for now. > > I am going to keep using JPA to manage all the Drools Flow tables. > > My domain object persistence will be managed by Hibernate Session. > > We are also currently using automatic flush (so no code to persist domain > objects in this class) > > Obviously you need to use your own version of HibUtil. > > import java.util.logging.Level; > import java.util.logging.Logger; > import > org.drools.persistence.processinstance.variabletypes.JPAPersistedVariable; > import > org.drools.persistence.processinstance.variabletypes.VariableInstanceInfo; > import org.drools.persistence.processinstance.persisters.VariablePersister; > import org.drools.runtime.Environment; > import org.hibernate.Session; > import HibUtil; > /** > * Variation on Drools JPA Variable Persister. > * org.drools.persistence.processinstance.persisters.JPAVariablePersister > * for using variables persisted by Hibernate, while still using JPA to > * persist DroolsFlow data. > * > * @author <a href="mailto:[email protected]";>Kris Verlaenen</a> > * @author salaboy > */ > public class JPAVariablePersisterHibernate implements VariablePersister { > public VariableInstanceInfo persistExternalVariable(String name, Object o, > VariableInstanceInfo oldValue, Environment env) { > if(o == null || (oldValue != null && > oldValue.getPersister().equals(""))){ > return null; > } > try { > JPAPersistedVariable result = null; > if (oldValue instanceof JPAPersistedVariable) { > result = (JPAPersistedVariable) oldValue; > } > if (result == null) { > result = new JPAPersistedVariable(); > } > Long idValue = geHibIdValue(o); > result.setPersister(this.getClass().getName()); > result.setName(name); > result.setEntityId(idValue); > result.setEntity(o); > result.setEntityClass(o.getClass().getCanonicalName()); > return result; > } catch (Throwable t) { > Logger.getLogger(JPAVariablePersisterHibernate.class.getName()) > .log(Level.SEVERE, null, t); > throw new RuntimeException("Could not persist external variable", t); > } > } > public Object getExternalPersistedVariable( > VariableInstanceInfo variableInstanceInfo, Environment env) { > if(((JPAPersistedVariable) variableInstanceInfo) == null || > ((JPAPersistedVariable) variableInstanceInfo).getEntityId() == null){ > return null; > } > System.out.println("Restoring JPAPersistedVariable id=" + > ((JPAPersistedVariable) variableInstanceInfo).getId() + " entityId=" + > ((JPAPersistedVariable) variableInstanceInfo).getEntityId() + " class=" + > ((JPAPersistedVariable) variableInstanceInfo).getEntityClass() + " value=" + > ((JPAPersistedVariable) variableInstanceInfo).getEntity()); > String varType = ((JPAPersistedVariable) > variableInstanceInfo).getEntityClass(); > > Object obj = HibUtil.getCurrentSession().get(varType, > ((JPAPersistedVariable) variableInstanceInfo).getEntityId()); > HibUtil.closeCurrentSession(); > return obj; > } > /** > * Hibernate lookup to get ID column. > * @param o Dto to look up. > * @return Long id. > */ > private Long geHibIdValue(Object o) { > Session session = HibUtil.getCurrentSession(); > return (Long) session.getIdentifier(o); > } > } > > > > > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users > -- - http://salaboy.wordpress.com - http://www.jbug.com.ar - Salatino "Salaboy" Mauricio -
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