de.tsl2.nano.persistence.replication

Class GenericReplicatingServiceBean

java.lang.Object

de.tsl2.nano.service.util.AbstractStatelessServiceBean

de.tsl2.nano.service.util.NamedQueryServiceBean

de.tsl2.nano.service.util.GenericServiceBean

de.tsl2.nano.persistence.replication.GenericReplicatingServiceBean

All Implemented Interfaces:

IBatchService, IGenericBaseService, IGenericLocalService, IGenericService, INamedQueryService, IQueryService, IStatelessService

Direct Known Subclasses:

GenericLocalServiceBean

public class GenericReplicatingServiceBean
extends GenericServiceBean

NOT FINISHED YET!

Overrides the base service methods of GenericServiceBean to do actions on a list of jpa EntitiyManagers. The first entity manager is the root/main to do the service on. all other entity managers will be used for replications.

 Technical Mechanism:
  - on getting data by queries, the root/main entity manager will be used to evaluate the data. the others will persist this new data.
  - on storing new or changed data, all entity managers will do the same on their connection.
  - works only if auto-commit = true
 

Version:

$Revision$

Author:

Tom, Thomas Schneider

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	collectReplications
protected boolean	connected
protected IGenericBaseService	replication
protected List<IGenericBaseService>	replicationServices

Fields inherited from class de.tsl2.nano.service.util.AbstractStatelessServiceBean

entityManager

Fields inherited from interface de.tsl2.nano.service.util.INamedQueryService

NAMEDQUERY_ALL, NAMEDQUERY_BETWEEN, NAMEDQUERY_DELETE, NAMEDQUERY_ID, NAMEDQUERY_INSERT, NAMEDQUERY_UPDATE

Constructor Summary

Constructors

Constructor and Description
GenericReplicatingServiceBean(javax.persistence.EntityManager entityManager, boolean createReplication) constructor
GenericReplicatingServiceBean(javax.persistence.EntityManager entityManager, List<IGenericBaseService> replicationServices) constructor

Method Summary

Modifier and Type	Method and Description
protected void	addReplicationEntities(IGenericBaseService repService, List<Object> reps, de.tsl2.nano.persistence.replication.Tree<Object,de.tsl2.nano.bean.def.BeanValue> container, boolean addRepsToContainer, Class... excludes) checks recursive the given list of objects to be replicated to the given service.
protected void	addReplicationEntities(IGenericBaseService repService, List<Object> reps, de.tsl2.nano.persistence.replication.Tree<Object,de.tsl2.nano.bean.def.BeanValue> container, Class... excludes)
boolean	checkConnection(boolean throwException)
protected boolean	checkConnection(IGenericBaseService service, boolean throwException) checkConnection
javax.persistence.EntityManager	connection()
protected static List<IGenericBaseService>	createStandardReplication() createStandardReplication
protected void	doForReplication(Runnable replicationJob)
Collection<?>	findByQuery(String queryString, boolean nativeQuery, int startIndex, int maxResult, Object[] args, Map<String,?> hints, Class... lazyRelations)
protected IGenericBaseService	getAvailableReplication()
<T> T	persistNoTransaction(T bean, boolean refreshBean, boolean flush, Class... lazyRelations)
void	remove(Object bean)
void	switchToConnection(int index) setting default entitymanager.

Methods inherited from class de.tsl2.nano.service.util.GenericServiceBean

createQuery, executeQuery, fillTree, find, findAll, findAll, findBatch, findBetween, findBetween, findByExample, findByExample, findByExample, findByExampleLike, findById, findByQuery, findByQuery, findHolders, findItemByQuery, findMembers, findValueByQuery, getUser, instantiateLazyRelationship, instantiateLazyRelationship, instantiateLazyRelationship, instantiateLazyRelationship, instantiateLazyRelationship, persist, persist, persistAll, persistCollection, refresh, removeCollection

Methods inherited from class de.tsl2.nano.service.util.NamedQueryServiceBean

findByNamedQuery, getNamedQueryByArguments, getNamedQueryPrefix, isNamedQuery, isVirtualEntity, persistByNamedQuery, removeByNamedQuery

Methods inherited from class de.tsl2.nano.service.util.AbstractStatelessServiceBean

checkContextSecurity, formatQuery, getEntityTypes, getLazyRelationType, getMaxRecursionLevel, getMaxResult, getServerInfo, initServerSideFactories, isLazyLoadingOnlyOnOneToMany, logTrace, setParameter

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.tsl2.nano.service.util.IGenericService

initServerSideFactories

Methods inherited from interface de.tsl2.nano.service.util.IGenericLocalService

initServerSideFactories

Methods inherited from interface de.tsl2.nano.service.util.IStatelessService

getServerInfo

Methods inherited from interface de.tsl2.nano.service.util.INamedQueryService

findByNamedQuery

Field Detail

replicationServices

protected List<IGenericBaseService> replicationServices

replication

protected IGenericBaseService replication

connected

protected boolean connected

collectReplications

protected boolean collectReplications

Constructor Detail

GenericReplicatingServiceBean

public GenericReplicatingServiceBean(javax.persistence.EntityManager entityManager,
                                     boolean createReplication)

constructor

GenericReplicatingServiceBean

public GenericReplicatingServiceBean(javax.persistence.EntityManager entityManager,
                                     List<IGenericBaseService> replicationServices)

constructor

Parameters:

enitityManager -

replications -

Method Detail

createStandardReplication

protected static List<IGenericBaseService> createStandardReplication()

createStandardReplication

Returns:

list filled with service on persistence-unit 'replication'

getAvailableReplication

protected IGenericBaseService getAvailableReplication()

switchToConnection

public void switchToConnection(int index)

setting default entitymanager.

Parameters:

index - index of replication (TODO: how to evaluate a name of an entity manager?)

connection

public javax.persistence.EntityManager connection()

Overrides:

connection in class AbstractStatelessServiceBean

checkConnection

public boolean checkConnection(boolean throwException)

checkConnection

protected boolean checkConnection(IGenericBaseService service,
                                  boolean throwException)

checkConnection

Parameters:

service - connection

throwException - if true, the exception will be forwarded

Returns:

true, if connection could be established

doForReplication

protected void doForReplication(Runnable replicationJob)

findByQuery

public Collection<?> findByQuery(String queryString,
                                 boolean nativeQuery,
                                 int startIndex,
                                 int maxResult,
                                 Object[] args,
                                 Map<String,?> hints,
                                 Class... lazyRelations)

Specified by:

findByQuery in interface IGenericBaseService

Overrides:

findByQuery in class GenericServiceBean

addReplicationEntities

protected void addReplicationEntities(IGenericBaseService repService,
                                      List<Object> reps,
                                      de.tsl2.nano.persistence.replication.Tree<Object,de.tsl2.nano.bean.def.BeanValue> container,
                                      Class... excludes)

addReplicationEntities

protected void addReplicationEntities(IGenericBaseService repService,
                                      List<Object> reps,
                                      de.tsl2.nano.persistence.replication.Tree<Object,de.tsl2.nano.bean.def.BeanValue> container,
                                      boolean addRepsToContainer,
                                      Class... excludes)

checks recursive the given list of objects to be replicated to the given service.

Parameters:

repService - service to check the new replication objects

reps - objects to be checked if already persisted

persistNoTransaction

public <T> T persistNoTransaction(T bean,
                                  boolean refreshBean,
                                  boolean flush,
                                  Class... lazyRelations)

Specified by:

persistNoTransaction in interface IGenericBaseService

Overrides:

persistNoTransaction in class GenericServiceBean

remove

public void remove(Object bean)

Specified by:

remove in interface IGenericBaseService

Overrides:

remove in class GenericServiceBean