nl.knowledgeplaza.util.jpa
Class JpaUtil

java.lang.Object
  nl.knowledgeplaza.util.jpa.JpaUtil

Direct Known Subclasses:

EclipselinkUtil

public class JpaUtil
extends java.lang.Object

Nested Class Summary

static interface

JpaUtil.JpaEntityInformation Used a.o. by JpaObjectNavigatorModel to decide whether to do a merge or persist upon save

Field Summary

static java.lang.String

SOURCECODE_VERSION Standard variable for determining version of a class file.

Constructor Summary

JpaUtil()

Method Summary

static void	clear() Clean the active EntityManager and the associated EntityManagerChangeCount
static void	clear(javax.persistence.EntityManager lEntityManager) Clean the EntityManager and the associated EntityManagerChangeCount
static java.lang.Object	getSingleResultOrDefault(javax.persistence.Query lQuery, java.lang.Object d) getSingleResult throws an exception if nothing is found.
static java.lang.Object	getSingleResultOrNull(javax.persistence.Query lQuery) getSingleResult throws an exception if nothing is found.
static java.lang.Object	mergeImmediately(javax.persistence.EntityManager entityManager, java.lang.Object entity) Persist an offline object by starting a transaction and merging the entity
static java.lang.Object	mergeImmediately(java.lang.Object entity)
static void	persistImmediately() persist all offline but persisted entities
static void	persistImmediately(javax.persistence.EntityManager entityManager) persist entity
static void	persistImmediately(javax.persistence.EntityManager entityManager, java.lang.Object entity) Persist an offline object by starting a transaction and persisting the entity
static void	persistImmediately(java.lang.Object entity) persist entity
static void	removeImmediately(javax.persistence.EntityManager entityManager, java.lang.Object entity) Persist an offline object by starting a transaction and merging the entity
static void	removeImmediately(java.lang.Object entity)

Methods inherited from class java.lang.Object

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

Field Detail

SOURCECODE_VERSION

public static final java.lang.String SOURCECODE_VERSION

Standard variable for determining version of a class file.

See Also:

Constant Field Values

Constructor Detail

JpaUtil

public JpaUtil()

Method Detail

persistImmediately

public static void persistImmediately(javax.persistence.EntityManager entityManager,
                                      java.lang.Object entity)

Persist an offline object by starting a transaction and persisting the entity

persistImmediately

public static void persistImmediately(java.lang.Object entity)

persist entity

Parameters:

entity -

persistImmediately

public static void persistImmediately(javax.persistence.EntityManager entityManager)

persist entity

Parameters:

entity -

persistImmediately

public static void persistImmediately()

persist all offline but persisted entities

mergeImmediately

public static java.lang.Object mergeImmediately(javax.persistence.EntityManager entityManager,
                                                java.lang.Object entity)

Persist an offline object by starting a transaction and merging the entity

mergeImmediately

public static java.lang.Object mergeImmediately(java.lang.Object entity)

removeImmediately

public static void removeImmediately(javax.persistence.EntityManager entityManager,
                                     java.lang.Object entity)

Persist an offline object by starting a transaction and merging the entity

removeImmediately

public static void removeImmediately(java.lang.Object entity)

clear

public static void clear(javax.persistence.EntityManager lEntityManager)

Clean the EntityManager and the associated EntityManagerChangeCount

clear

public static void clear()

Clean the active EntityManager and the associated EntityManagerChangeCount

getSingleResultOrNull

public static java.lang.Object getSingleResultOrNull(javax.persistence.Query lQuery)

getSingleResult throws an exception if nothing is found. The method returns null in that case.

Parameters:

lQuery -

Returns:

getSingleResultOrDefault

public static java.lang.Object getSingleResultOrDefault(javax.persistence.Query lQuery,
                                                        java.lang.Object d)

getSingleResult throws an exception if nothing is found. The method returns the default in that case.

Parameters:

lQuery -

Returns: