Examples of com.impetus.kundera.client.Client

com.impetus.kundera.client.Client
In Kundera, Clients act as a translator of JPA calls to datastore-specific respective operations call. Clients are constructed via {@link ClientFactory} that are configurable in persistence.xml. This makes itpossible for user to choose a {@link Client} implementation for a particularpersistence unit. Client API defines methods that are required to be implemented by various clients implementations (Thrift, Mongo etc). Any new addition of datastore support must implement this API. This is because kundera-core - after initialization, caching etc, calls clients methods to read from/ write into datastores. @author vivek.mishra

     * @param em
     * @return
     */
    private List onNativeCassResults(List result, EntityMetadata entityMetadata, EntityManager em) {
        Map<String, Client<Query>> clients = (Map<String, Client<Query>>) em.getDelegate();
        Client client = clients.get(entityMetadata.getPersistenceUnit());
        if((client.getClass().getSimpleName().equals("ThriftClient") || client.getClass().getSimpleName().equals("PelopsClient")
                        || client.getClass().getSimpleName().equals("DSClient"))
                        && Column.class.equals(result.get(0).getClass())) {
            int count = 0;
            for(Object column : result) {
                Map<Object, Object> valueMap = new HashMap<Object, Object>();
                valueMap.put(PropertyAccessorHelper.getObject(String.class, ((Column) column).getName()), PropertyAccessorHelper.getObject(Long.class, ((Column) column).getValue()));

View Full Code Here

            script = URLDecoder.decode(script, "UTF-8");
            sessionToken = sessionToken.replaceAll("^\"|\"$", "");
            EntityManager em = EMRepository.INSTANCE.getEM(sessionToken);


            Map<String, Client<Query>> clients = (Map<String, Client<Query>>) em.getDelegate();
            Client client = clients.get(persistenceUnit);


            result = client.executeScript(script);


        } catch (Exception e) {
            log.error(e.getMessage());
            return Response.serverError().build();
        }

View Full Code Here

     * @return
     */
    protected List fetch()
    {
        EntityMetadata metadata = getEntityMetadata();
        Client client = persistenceDelegeator.getClient(metadata);
        List results = isRelational(metadata) ? recursivelyPopulateEntities(metadata, client) : populateEntities(
                metadata, client);
        return results;
    }

View Full Code Here

        EntityManager em = emf.createEntityManager();
        UUID timeLineId = UUID.randomUUID();
        CassandraCompoundKey key = new CassandraCompoundKey("mevivs", 1, timeLineId);


        Map<String, Client> clients = (Map<String, Client>) em.getDelegate();
        Client client = clients.get(_PU);
        ((CassandraClientBase) client).setCqlVersion("3.0.0");


        CassandraPrimeUser user = new CassandraPrimeUser(key);
        user.setTweetBody("my first tweet");
        user.setTweetDate(currentDate);

View Full Code Here

     */
    private void populateCollectionFromJoinTable(Object entity, EntityMetadata entityMetadata,
            PersistenceDelegator delegator, Relation relation)
    {
        JoinTableMetadata jtMetadata = relation.getJoinTableMetadata();
        Client pClient = delegator.getClient(entityMetadata);


        String schema = entityMetadata.getSchema();


        EntityMetadata owningEntityMetadata = KunderaMetadataManager.getEntityMetadata(delegator.getKunderaMetadata(),
                relation.getTargetEntity());
        Class columnJavaType = owningEntityMetadata.getIdAttribute().getJavaType();
        if (jtMetadata == null)
        {
            columnJavaType = entityMetadata.getIdAttribute().getJavaType();
            Relation owningEntityMetadataRelation = owningEntityMetadata.getRelation(relation.getMappedBy());
            jtMetadata = owningEntityMetadataRelation.getJoinTableMetadata();
            pClient = delegator.getClient(owningEntityMetadata);
            schema = owningEntityMetadata.getSchema();
        }


        String joinTableName = jtMetadata.getJoinTableName();


        Set<String> joinColumns = jtMetadata.getJoinColumns();
        Set<String> inverseJoinColumns = jtMetadata.getInverseJoinColumns();


        String joinColumnName = (String) joinColumns.toArray()[0];
        String inverseJoinColumnName = (String) inverseJoinColumns.toArray()[0];


        Object entityId = PropertyAccessorHelper.getId(entity, entityMetadata);
        List<?> foreignKeys = pClient.getColumnsById(schema, joinTableName, joinColumnName, inverseJoinColumnName,
                entityId, columnJavaType);


        List childrenEntities = new ArrayList();


        if (foreignKeys != null)
        {
            for (Object foreignKey : foreignKeys)
            {
                EntityMetadata childMetadata = KunderaMetadataManager.getEntityMetadata(delegator.getKunderaMetadata(),
                        relation.getTargetEntity());


                Object child = delegator.find(relation.getTargetEntity(), foreignKey);
                Object obj = child instanceof EnhanceEntity && child != null ? ((EnhanceEntity) child).getEntity()
                        : child;


                // If child has any bidirectional relationship, process them
                // here
                Field biDirectionalField = relation.getBiDirectionalField();
                boolean isBidirectionalRelation = (biDirectionalField != null);


                if (isBidirectionalRelation && obj != null)
                {
                    Object columnValue = PropertyAccessorHelper.getId(obj, childMetadata);
                    Object[] pKeys = pClient.findIdsByColumn(entityMetadata.getSchema(), joinTableName, joinColumnName,
                            inverseJoinColumnName, columnValue, entityMetadata.getEntityClazz());
                    List parents = delegator.find(entity.getClass(), pKeys);
                    PropertyAccessorHelper.set(obj, biDirectionalField,
                            ObjectUtils.getFieldInstance(parents, biDirectionalField));
                    PersistenceCacheManager.addEntityToPersistenceCache(obj, delegator, columnValue);

View Full Code Here

                if (relationValue instanceof Map)
                {
                    Map<Object, Object> relationValueMap = (Map<Object, Object>) relationValue;


                    // Client for target entity
                    Client targetEntityClient = delegator.getClient(childMetadata);


                    for (Object targetEntityKey : relationValueMap.keySet())
                    {
                        // Find target entity from database
                        Object targetEntity = targetEntityClient.find(childMetadata.getEntityClazz(), targetEntityKey);
                        if (targetEntity != null && targetEntity instanceof EnhanceEntity)
                        {
                            targetEntity = ((EnhanceEntity) targetEntity).getEntity();
                        }

View Full Code Here

        }
        else if (!relation.isUnary())
        {
            // Now these entities may be enhance entities and may not be as
            // well.
            Client associatedClient = pd.getClient(targetEntityMetadata);


            if (!MetadataUtils.useSecondryIndex(((ClientBase) associatedClient).getClientMetadata())
                    && MetadataUtils.indexSearchEnabled(targetEntityMetadata.getPersistenceUnit(), kunderaMetadata))
            {


                relationalEntities = getAssociationBuilder().getAssociatedEntitiesFromIndex(
                        relation.getProperty().getDeclaringClass(), entityId, targetEntityMetadata.getEntityClazz(),
                        associatedClient);
            }
            else
            {
                relationalEntities = associatedClient.findByRelation(relation.getJoinColumnName(kunderaMetadata),
                        entityId, relation.getTargetEntity());
            }
        }
        return relationalEntities;
    }

View Full Code Here

            puPropertiesString.put("ttl.values", ttv);


            em = emf.createEntityManager(puPropertiesString);


            Map<String, Client> clients = (Map<String, Client>) em.getDelegate();
            Client client = clients.get(_PU);


            Field f;


            f = ((CassandraClientBase) client).getClass().getSuperclass().getDeclaredField("consistencyLevel"); // NoSuchFieldException
            f.setAccessible(true);

View Full Code Here

            puPropertiesObj.put("ttl.values", ttv);


            em = emf.createEntityManager(puPropertiesObj);


            Map<String, Client> clients = (Map<String, Client>) em.getDelegate();
            Client client = clients.get(_PU);


            Field f;


            f = ((CassandraClientBase) client).getClass().getSuperclass().getDeclaredField("consistencyLevel"); // NoSuchFieldException
            f.setAccessible(true);

View Full Code Here


    @Override
    public Iterator iterate()
    {
        EntityMetadata m = getEntityMetadata();
        Client client = persistenceDelegeator.getClient(m);


        if (!MetadataUtils.useSecondryIndex(((ClientBase) client).getClientMetadata()))
        {
            throw new UnsupportedOperationException("Scrolling over hbase is unsupported for lucene queries");
        }

View Full Code Here

0 1 2 3 4 5 6

TOP

Related Classes of com.impetus.kundera.client.Client

com.impetus.client.cassandra.config.CassandraPropertySetterTest

com.impetus.client.cassandra.crud.compositeType.association.UserInfoTest

com.impetus.client.cassandra.query.CassQuery

com.impetus.client.crud.compositeType.CassandraCompositeTypeOrderByTest

com.impetus.client.crud.compositeType.CassandraCompositeTypeTest

com.impetus.client.crud.compositeType.CompositeDataTypeTest

com.impetus.client.crud.compositeType.LuceneCompositeKeyTest

com.impetus.client.crud.PersonMongoTest

com.impetus.client.hbase.config.HbasePropertySetterTest

com.impetus.client.hbase.crud.PersonHBaseTest

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.