org.compass.gps.device.jpa.embedded.openjpa
Class OpenJPAHelper

java.lang.Object
  org.compass.gps.device.jpa.embedded.openjpa.OpenJPAHelper

public abstract class OpenJPAHelper
extends Object

Helper class to get different Compass constructs embedded with Open JPA.

Author:

kimchy

Method Summary

static Compass	getCompass(javax.persistence.EntityManager em) Returns the Compass instance assoicated with the given OpenJPA EntityManager.
static Compass	getCompass(javax.persistence.EntityManagerFactory emf) Returns the Compass instance assoicated with the given OpenJPA EntityManagerFactory.
static JpaCompassGps	getCompassGps(javax.persistence.EntityManager em) Returns the Compass Gps instance associated with the given OpenJPA EntityManager.
static JpaCompassGps	getCompassGps(javax.persistence.EntityManagerFactory emf) Returns the Compass Gps instance associated with the given OpenJPA EntityManagerFactory.
static CompassSession	getCurrentCompassSession(javax.persistence.EntityManager em) Returns the current Compass session associated with the EntityManager.
Properties	getIndexSettings(javax.persistence.EntityManager em) Returns the index settings that are configured within the EntityManager configuration.
Properties	getIndexSettings(javax.persistence.EntityManagerFactory emf) Returns the index settings that are configured within the EntityManagerFactory configuration.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getCompass

public static Compass getCompass(javax.persistence.EntityManagerFactory emf)

Returns the Compass instance assoicated with the given OpenJPA EntityManagerFactory. This allows to get a Compass instnace in order to perform search operations for example outside of a JPA transaction (for performance reasons, mostly there is no need to start a DB transaction).

getCompass

public static Compass getCompass(javax.persistence.EntityManager em)

Returns the Compass instance assoicated with the given OpenJPA EntityManager. This allows to get a Compass instnace in order to perform search operations for example outside of a JPA transaction (for performance reasons, mostly there is no need to start a DB transaction).

getCompassGps

public static JpaCompassGps getCompassGps(javax.persistence.EntityManagerFactory emf)

Returns the Compass Gps instance associated with the given OpenJPA EntityManagerFactory. Used in order to perform CompassGps.index() operation. Note, the index operation should not be perfomed within a running transaction.

getCompassGps

public static JpaCompassGps getCompassGps(javax.persistence.EntityManager em)

Returns the Compass Gps instance associated with the given OpenJPA EntityManager. Used in order to perform CompassGps.index() operation. Note, the index operation should not be perfomed within a running transaction.

getCurrentCompassSession

public static CompassSession getCurrentCompassSession(javax.persistence.EntityManager em)

Returns the current Compass session associated with the EntityManager. Compass Session is associated with an Entity Manager when a transaction is started and removed when the transaction commits/rollsback.

The session can be used to perform searches that needs to take into account current transactional changes or to perform additional Compass operations that are not reflected by the mirroring feature.

getIndexSettings

public Properties getIndexSettings(javax.persistence.EntityManagerFactory emf)

Returns the index settings that are configured within the EntityManagerFactory configuration. Can be used to configure exteranally a JpaCompassGps instance.

getIndexSettings

public Properties getIndexSettings(javax.persistence.EntityManager em)

Returns the index settings that are configured within the EntityManager configuration. Can be used to configure exteranally a JpaCompassGps instnace.