1 Reply Latest reply on Aug 9, 2016 9:00 AM by jimmy001

    Jbpm 6.4 pesistence unit on project

    Darwin Darwin Newbie

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      I created a new repository and a new Project in JBPM 6.4 Inside project I created a persistence.xml

      
          <?xml version="1.0" encoding="UTF-8" standalone="no"?>
          <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:orm="http://java.sun.com/xml/ns/persistence/orm" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_2_0.xsd">
              <persistence-unit name="demox:com.prueba:1.0" transaction-type="JTA">
                  <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
                  <jta-data-source>java:jboss/datasources/jbpmDS</jta-data-source>
                  <class>demox.com.prueba.Estudiante</class>
                  <exclude-unlisted-classes>true</exclude-unlisted-classes>
                  <properties>
                      <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
                      <property name="hibernate.max_fetch_depth" value="3"/>
                      <property name="hibernate.hbm2ddl.auto" value="update"/>
                      <property name="hibernate.show_sql" value="false"/>
                      <property name="hibernate.id.new_generator_mappings" value="false"/>
                      <property name="hibernate.transaction.jta.platform" value="org.hibernate.service.jta.platform.internal.JBossAppServerJtaPlatform"/>
                  </properties>
              </persistence-unit>
          </persistence>
      

      Also I defined a persistible object (pojo decorated with @Entity)

      Now I have a simple process with only a one script task

      But when I deployed the process in my DB the Student Table is created...

      package demox.com.prueba;
          
          /**
           * This class was automatically generated by the data modeler tool.
           */
          
          @javax.persistence.Entity
          public class Estudiante implements java.io.Serializable
          {
          
             static final long serialVersionUID = 1L;
          
             @javax.persistence.GeneratedValue(strategy = javax.persistence.GenerationType.AUTO, generator = "ESTUDIANTE_ID_GENERATOR")
             @javax.persistence.Id
             @javax.persistence.SequenceGenerator(name = "ESTUDIANTE_ID_GENERATOR", sequenceName = "ESTUDIANTE_ID_SEQ")
             private java.lang.Long id;
          
             @org.kie.api.definition.type.Label(value = "name")
             private java.lang.String name;
          
             public Estudiante()
             {
             }
          
             public java.lang.Long getId()
             {
                return this.id;
             }
          
             public void setId(java.lang.Long id)
             {
                this.id = id;
             }
          
             public java.lang.String getName()
             {
                return this.name;
             }
          
             public void setName(java.lang.String name)
             {
                this.name = name;
             }
          
             public Estudiante(java.lang.Long id, java.lang.String name)
             {
                this.id = id;
                this.name = name;
             }
          
          }
      

      So the question is how get inside this scriptTask the reference to this EntityManger to persist this pojo?

      I tried:

          demox.com.prueba.Estudiante est=new demox.com.prueba.Estudiante();
          String pu="demox:com.prueba:1.0";
          
          //javax.persistence.EntityManagerFactory emf = javax.persistence.Persistence.createEntityManagerFactory( pu );
          
          javax.persistence.EntityManagerFactory emf = (javax.persistence.EntityManagerFactory) kcontext.getKnowledgeRuntime().getEnvironment()
              .get(org.kie.api.runtime.EnvironmentName.ENTITY_MANAGER_FACTORY); # tried also EnvironmentName.CMD_SCOPED_ENTITY_MANAGER
            
          System.out.println("Entity manager " + emf );
          
          emf.persist(est);
      

      But when used this code the EntityManager is a reference to a jbpm persistence unit not a instance to my persistence unit(demo) which don't contain my pojo class (unknown Entity)

      so how can acces to this persistence unit in my script task?