org.compass.gps.device.jpa.entities
Class OpenJPAJpaEntitiesLocator

java.lang.Object
  org.compass.gps.device.jpa.entities.OpenJPAJpaEntitiesLocator

All Implemented Interfaces:

JpaEntitiesLocator

public class OpenJPAJpaEntitiesLocator
extends Object
implements JpaEntitiesLocator

A specilized version that works with OpenJPA. This class should be used instead of DefaultJpaEntitiesLocator since it works with both openjpa xml files and annotatios.

Author:

kimchy

Field Summary

protected org.apache.commons.logging.Log

log

Constructor Summary

OpenJPAJpaEntitiesLocator()

Method Summary

EntityInformation[]	locate(javax.persistence.EntityManagerFactory entityManagerFactory, JpaGpsDevice device) Locates the entities used for the index operation.
void	setClassLoader(ClassLoader classLoader)
protected boolean	shouldFilter(String entityname, org.apache.openjpa.meta.ClassMetaData classMetadata, JpaGpsDevice device) Returns true if the entity name needs to be filtered.

Methods inherited from class java.lang.Object

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

Field Detail

log

protected org.apache.commons.logging.Log log

Constructor Detail

OpenJPAJpaEntitiesLocator

public OpenJPAJpaEntitiesLocator()

Method Detail

setClassLoader

public void setClassLoader(ClassLoader classLoader)

locate

public EntityInformation[] locate(javax.persistence.EntityManagerFactory entityManagerFactory,
                                  JpaGpsDevice device)
                           throws JpaGpsDeviceException

Description copied from interface: JpaEntitiesLocator

Locates the entities used for the index operation.

Specified by:

locate in interface JpaEntitiesLocator

Parameters:

entityManagerFactory - The EntityManagerFactory to be optionally used for locating the entities.

device - The Jpa device that called this locator.

Returns:

An array of the enteties that need to be indexed during the index operation.

Throws:

JpaGpsDeviceException

shouldFilter

protected boolean shouldFilter(String entityname,
                               org.apache.openjpa.meta.ClassMetaData classMetadata,
                               JpaGpsDevice device)

Returns true if the entity name needs to be filtered.

Implementation filteres out inherited OpenJPA mappings, since the select query for the base class will cover any inherited classes as well.

Note, that this method is called after it has been verified that the class has Compass mappings (either directly, or indirectly by an interface or a super class).

Parameters:

entityname - The name of the entity

classMetadata - The OpenJPA class meta data.

device - The Jpa Gps device

Returns:

true if the entity should be filtered out, false if not.