use of org.eclipse.persistence.internal.sessions.AbstractSession in project eclipselink by eclipse-ee4j.
the class MetadataMirrorFactory method getMetadataProject.
/**
* INTERNAL:
* We preserve state from each processor run by holding static references
* to projects.
*/
public MetadataProject getMetadataProject(SEPersistenceUnitInfo puInfo) {
if (!metadataProjects.containsKey(puInfo.getPersistenceUnitName())) {
AbstractSession session = new ServerSession(new Project(new DatabaseLogin()));
session.setSessionLog(getLogger().getSession().getSessionLog());
MetadataProject project = new MetadataProject(puInfo, session, false, false, false, false, false);
metadataProjects.put(puInfo.getPersistenceUnitName(), project);
return project;
} else {
return metadataProjects.get(puInfo.getPersistenceUnitName());
}
}
use of org.eclipse.persistence.internal.sessions.AbstractSession in project eclipselink by eclipse-ee4j.
the class AbstractEntityResource method findAttributeInternal.
protected Response findAttributeInternal(String version, String persistenceUnit, String type, String id, String attribute, HttpHeaders headers, UriInfo uriInfo) {
JPARSLogger.entering(CLASS_NAME, "findAttributeInternal", new Object[] { "GET", version, persistenceUnit, type, id, attribute, uriInfo.getRequestUri().toASCIIString() });
EntityManager em = null;
try {
PersistenceContext context = getPersistenceContext(persistenceUnit, type, uriInfo.getBaseUri(), version, null);
Object entityId = IdHelper.buildId(context, type, id);
em = context.getEmf().createEntityManager(getMatrixParameters(uriInfo, persistenceUnit));
Object entity = em.find(context.getClass(type), entityId, getQueryParameters(uriInfo));
DatabaseSession serverSession = context.getServerSession();
ClassDescriptor descriptor = serverSession.getClassDescriptor(context.getClass(type));
if (descriptor == null) {
throw JPARSException.classOrClassDescriptorCouldNotBeFoundForEntity(type, persistenceUnit);
}
DatabaseMapping attributeMapping = descriptor.getMappingForAttributeName(attribute);
if ((attributeMapping == null) || (entity == null)) {
throw JPARSException.databaseMappingCouldNotBeFoundForEntityAttribute(attribute, type, id, persistenceUnit);
}
if (!attributeMapping.isCollectionMapping()) {
Object result = attributeMapping.getRealAttributeValueFromAttribute(attributeMapping.getAttributeValueFromObject(entity), entity, (AbstractSession) serverSession);
if (result == null) {
JPARSLogger.error(context.getSessionLog(), "jpars_could_not_find_entity_for_attribute", new Object[] { attribute, type, id, persistenceUnit });
throw JPARSException.attributeCouldNotBeFoundForEntity(attribute, type, id, persistenceUnit);
}
final FeatureResponseBuilder responseBuilder = context.getSupportedFeatureSet().getResponseBuilder(Feature.NO_PAGING);
return findAttributeResponse(context, attribute, type, id, persistenceUnit, result, getQueryParameters(uriInfo), headers, uriInfo, responseBuilder, null);
}
ReadQuery query = (ReadQuery) ((((ForeignReferenceMapping) attributeMapping).getSelectionQuery()).clone());
if (query == null) {
throw JPARSException.selectionQueryForAttributeCouldNotBeFoundForEntity(attribute, type, id, persistenceUnit);
}
final FeatureSet featureSet = context.getSupportedFeatureSet();
final AbstractSession clientSession = context.getClientSession(em);
// Fields filtering
FieldsFilter fieldsFilter = null;
if (context.getSupportedFeatureSet().isSupported(Feature.FIELDS_FILTERING)) {
final FieldsFilteringValidator fieldsFilteringValidator = new FieldsFilteringValidator(uriInfo);
if (fieldsFilteringValidator.isFeatureApplicable()) {
fieldsFilter = fieldsFilteringValidator.getFilter();
}
}
// Pagination
if (featureSet.isSupported(Feature.PAGING)) {
final PageableFieldValidator validator = new PageableFieldValidator(entity.getClass(), attribute, uriInfo);
if (validator.isFeatureApplicable()) {
// Adding extra one to detect are there more rows or not. It will be removed later
// on in response processor.
query.setMaxRows(validator.getLimit() + validator.getOffset() + 1);
query.setFirstResult(validator.getOffset());
// We need to add limit and offset to query parameters because request builder reads it from there
final Map<String, Object> queryParams = getQueryParameters(uriInfo);
queryParams.put(QueryParameters.JPARS_PAGING_LIMIT, String.valueOf(validator.getLimit()));
queryParams.put(QueryParameters.JPARS_PAGING_OFFSET, String.valueOf(validator.getOffset()));
// check orderBy, and generate a warning if there is none
checkOrderBy(context, query);
final Object result = clientSession.executeQuery(query, descriptor.getObjectBuilder().buildRow(entity, clientSession, WriteType.INSERT));
final FeatureResponseBuilder responseBuilder = context.getSupportedFeatureSet().getResponseBuilder(Feature.PAGING);
return findAttributeResponse(context, attribute, type, id, persistenceUnit, result, queryParams, headers, uriInfo, responseBuilder, fieldsFilter);
}
}
final Object result = clientSession.executeQuery(query, descriptor.getObjectBuilder().buildRow(entity, clientSession, WriteType.INSERT));
final FeatureResponseBuilder responseBuilder = context.getSupportedFeatureSet().getResponseBuilder(Feature.NO_PAGING);
return findAttributeResponse(context, attribute, type, id, persistenceUnit, result, getQueryParameters(uriInfo), headers, uriInfo, responseBuilder, fieldsFilter);
} catch (Exception ex) {
throw JPARSException.exceptionOccurred(ex);
} finally {
if (em != null) {
if (em.isOpen()) {
em.close();
}
}
}
}
use of org.eclipse.persistence.internal.sessions.AbstractSession in project eclipselink by eclipse-ee4j.
the class JTATransactionWrapper method beginTransaction.
@Override
public void beginTransaction(EntityManager em) {
AbstractSession session = JpaHelper.getEntityManagerFactory(em).getDatabaseSession();
session.getExternalTransactionController().beginTransaction(session);
// EMs obtained outside the transaction is now prevented from participating or flushing to the trans unless join is called.
if (!em.isJoinedToTransaction()) {
em.joinTransaction();
}
}
use of org.eclipse.persistence.internal.sessions.AbstractSession in project eclipselink by eclipse-ee4j.
the class JTATransactionWrapper method commitTransaction.
@Override
public void commitTransaction(EntityManager em) {
AbstractSession session = JpaHelper.getEntityManagerFactory(em).getDatabaseSession();
session.getExternalTransactionController().commitTransaction(session);
}
use of org.eclipse.persistence.internal.sessions.AbstractSession in project eclipselink by eclipse-ee4j.
the class SDOXMLHelperDelegate method initializeDescriptor.
@Override
public void initializeDescriptor(XMLDescriptor descriptor) {
AbstractSession theSession = (AbstractSession) getXmlContext().getSession();
// do initialization for new descriptor;
descriptor.preInitialize(theSession);
descriptor.initialize(theSession);
descriptor.postInitialize(theSession);
descriptor.getObjectBuilder().initializePrimaryKey(theSession);
getXmlContext().storeXMLDescriptorByQName(descriptor);
}
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