jpa/subsystem/src/main/java/org/jboss/as/jpa/processor/PersistenceRefProcessor.java
private List<BindingConfiguration> getPersistenceContextRefs(DeploymentUnit deploymentUnit, DeploymentDescriptorEnvironment environment, ClassLoader classLoader, DeploymentReflectionIndex deploymentReflectionIndex, ResourceInjectionTarget resourceInjectionTarget) throws
        DeploymentUnitProcessingException {

        List<BindingConfiguration> bindingConfigurations = new ArrayList<BindingConfiguration>();
        final RemoteEnvironment remoteEnvironment = environment.getEnvironment();
        if (remoteEnvironment == null) {
            return bindingConfigurations;
        }

        if (remoteEnvironment instanceof Environment) {
            PersistenceContextReferencesMetaData persistenceUnitRefs = ((Environment) remoteEnvironment).getPersistenceContextRefs();

            if (persistenceUnitRefs != null) {
                for (PersistenceContextReferenceMetaData puRef : persistenceUnitRefs) {
                    String name = puRef.getName();
                    String persistenceUnitName = puRef.getPersistenceUnitName();
                    String lookup = puRef.getLookupName();

                    if (!isEmpty(lookup) && !isEmpty(persistenceUnitName)) {
                        throw JpaLogger.ROOT_LOGGER.cannotSpecifyBoth("<lookup-name>", lookup, "persistence-unit-name", persistenceUnitName, "<persistence-context-ref/>", resourceInjectionTarget);
                    }
                    if (!name.startsWith("java:")) {
                        name = environment.getDefaultContext() + name;
                    }

                    // our injection (source) comes from the local (ENC) lookup, no matter what.
                    LookupInjectionSource injectionSource = new LookupInjectionSource(name);
                    //add any injection targets
                    processInjectionTargets(resourceInjectionTarget, injectionSource, classLoader, deploymentReflectionIndex, puRef, EntityManager.class);

                    BindingConfiguration bindingConfiguration = null;
                    if (!isEmpty(lookup)) {
                        bindingConfiguration = new BindingConfiguration(name, new LookupInjectionSource(lookup));
                    } else {
                        PropertiesMetaData properties = puRef.getProperties();
                        Map<String, String> map = new HashMap<>();
                        if (properties != null) {
                            for (PropertyMetaData prop : properties) {
                                map.put(prop.getKey(), prop.getValue());
                            }
                        }
                        PersistenceContextType type = (puRef.getPersistenceContextType() == null || puRef.getPersistenceContextType() == PersistenceContextTypeDescription.TRANSACTION) ? PersistenceContextType.TRANSACTION : PersistenceContextType.EXTENDED ;
                        SynchronizationType synchronizationType =
                                (puRef.getPersistenceContextSynchronization() == null || PersistenceContextSynchronizationType.Synchronized.equals(puRef.getPersistenceContextSynchronization()))?
                                        SynchronizationType.SYNCHRONIZED: SynchronizationType.UNSYNCHRONIZED;
                        InjectionSource pcBindingSource = this.getPersistenceContextBindingSource(deploymentUnit, persistenceUnitName, type, synchronizationType, map);
                        bindingConfiguration = new BindingConfiguration(name, pcBindingSource);
                    }
                    bindingConfigurations.add(bindingConfiguration);
                }
            }
        }
        return bindingConfigurations;
    }
private List<BindingConfiguration> getPersistenceContextRefs(DeploymentUnit deploymentUnit, DeploymentDescriptorEnvironment environment, ClassLoader classLoader, DeploymentReflectionIndex deploymentReflectionIndex, ResourceInjectionTarget resourceInjectionTarget) throws
        DeploymentUnitProcessingException {

        List<BindingConfiguration> bindingConfigurations = new ArrayList<BindingConfiguration>();
        final RemoteEnvironment remoteEnvironment = environment.getEnvironment();
        if (remoteEnvironment == null) {
            return bindingConfigurations;
        }

        if (remoteEnvironment instanceof Environment) {
            PersistenceContextReferencesMetaData persistenceUnitRefs = ((Environment) remoteEnvironment).getPersistenceContextRefs();

            if (persistenceUnitRefs != null) {
                for (PersistenceContextReferenceMetaData puRef : persistenceUnitRefs) {
                    String name = puRef.getName();
                    String persistenceUnitName = puRef.getPersistenceUnitName();
                    String lookup = puRef.getLookupName();

                    if (!isEmpty(lookup) && !isEmpty(persistenceUnitName)) {
                        throw JpaLogger.ROOT_LOGGER.cannotSpecifyBoth("<lookup-name>", lookup, "persistence-unit-name", persistenceUnitName, "<persistence-context-ref/>", resourceInjectionTarget);
                    }
                    if (!name.startsWith("java:")) {
                        name = environment.getDefaultContext() + name;
                    }

                    // our injection (source) comes from the local (ENC) lookup, no matter what.
                    LookupInjectionSource injectionSource = new LookupInjectionSource(name);
                    //add any injection targets
                    processInjectionTargets(resourceInjectionTarget, injectionSource, classLoader, deploymentReflectionIndex, puRef, EntityManager.class);

                    BindingConfiguration bindingConfiguration = null;
                    if (!isEmpty(lookup)) {
                        bindingConfiguration = new BindingConfiguration(name, new LookupInjectionSource(lookup));
                    } else {
                        PropertiesMetaData properties = puRef.getProperties();
                        Map<String, String> map = new HashMap<>();
                        if (properties != null) {
                            for (PropertyMetaData prop : properties) {
                                map.put(prop.getKey(), prop.getValue());
                            }
                        }
                        PersistenceContextType type = (puRef.getPersistenceContextType() == null || puRef.getPersistenceContextType() == PersistenceContextTypeDescription.TRANSACTION) ? PersistenceContextType.TRANSACTION : PersistenceContextType.EXTENDED ;
                        SynchronizationType synchronizationType =
                                (puRef.getPersistenceContextSynchronization() == null || PersistenceContextSynchronizationType.Synchronized.equals(puRef.getPersistenceContextSynchronization()))?
                                        SynchronizationType.SYNCHRONIZED: SynchronizationType.UNSYNCHRONIZED;
                        InjectionSource pcBindingSource = this.getPersistenceContextBindingSource(deploymentUnit, persistenceUnitName, type, synchronizationType, map);
                        bindingConfiguration = new BindingConfiguration(name, pcBindingSource);
                    }
                    bindingConfigurations.add(bindingConfiguration);
                }
            }
        }
        return bindingConfigurations;
    }
private List < BindingConfiguration > getPersistenceContextRefs ( DeploymentUnit deploymentUnit , DeploymentDescriptorEnvironment environment , ClassLoader classLoader , DeploymentReflectionIndex deploymentReflectionIndex , ResourceInjectionTarget resourceInjectionTarget ) throws DeploymentUnitProcessingException { List < BindingConfiguration > bindingConfigurations = new ArrayList < BindingConfiguration > ( ) ; final RemoteEnvironment remoteEnvironment = environment . getEnvironment ( ) ; if ( remoteEnvironment == null ) { return bindingConfigurations ; } if ( remoteEnvironment instanceof Environment ) { PersistenceContextReferencesMetaData persistenceUnitRefs = ( ( Environment ) remoteEnvironment ) . getPersistenceContextRefs ( ) ; if ( persistenceUnitRefs != null ) { for ( PersistenceContextReferenceMetaData puRef : persistenceUnitRefs ) { String name = puRef . getName ( ) ; String persistenceUnitName = puRef . getPersistenceUnitName ( ) ; String lookup = puRef . getLookupName ( ) ; if ( ! isEmpty ( lookup ) && ! isEmpty ( persistenceUnitName ) ) { throw JpaLogger . ROOT_LOGGER . cannotSpecifyBoth ( "<lookup-name>" , lookup , "persistence-unit-name" , persistenceUnitName , "<persistence-context-ref/>" , resourceInjectionTarget ) ; } if ( ! name . startsWith ( "java:" ) ) { name = environment . getDefaultContext ( ) + name ; } // our injection (source) comes from the local (ENC) lookup, no matter what. LookupInjectionSource injectionSource = new LookupInjectionSource ( name ) ; //add any injection targets processInjectionTargets ( resourceInjectionTarget , injectionSource , classLoader , deploymentReflectionIndex , puRef , EntityManager . class ) ; BindingConfiguration bindingConfiguration = null ; if ( ! isEmpty ( lookup ) ) { bindingConfiguration = new BindingConfiguration ( name , new LookupInjectionSource ( lookup ) ) ; } else { PropertiesMetaData properties = puRef . getProperties ( ) ; Map < String , String > map = new HashMap <> ( ) ; if ( properties != null ) { for ( PropertyMetaData prop : properties ) { map . put ( prop . getKey ( ) , prop . getValue ( ) ) ; } } PersistenceContextType type = ( puRef . getPersistenceContextType ( ) == null || puRef . getPersistenceContextType ( ) == PersistenceContextTypeDescription . TRANSACTION ) ? PersistenceContextType . TRANSACTION : PersistenceContextType . EXTENDED ; SynchronizationType synchronizationType = ( puRef . getPersistenceContextSynchronization ( ) == null || PersistenceContextSynchronizationType . Synchronized . equals ( puRef . getPersistenceContextSynchronization ( ) ) ) ? SynchronizationType . SYNCHRONIZED : SynchronizationType . UNSYNCHRONIZED ; InjectionSource pcBindingSource = this . getPersistenceContextBindingSource ( deploymentUnit , persistenceUnitName , type , synchronizationType , map ) ; bindingConfiguration = new BindingConfiguration ( name , pcBindingSource ) ; } bindingConfigurations . add ( bindingConfiguration ) ; } } } return bindingConfigurations ; }
Resolves persistence-unit-ref

@param environment               The environment to resolve the elements for
@param classLoader               The deployment class loader
@param deploymentReflectionIndex The reflection index
@return The bindings for the environment entries
Resolves persistence - unit - ref