Examples of org.eclipse.persistence.internal.queries.ContainerPolicy.nextEntry()

Package org.eclipse.persistence.internal.queries

Class org.eclipse.persistence.internal.queries.ContainerPolicy

Examples of org.eclipse.persistence.internal.queries.ContainerPolicy.nextEntry()

org.eclipse.persistence.internal.queries.ContainerPolicy.nextEntry()
INTERNAL: Return the next object on the queue. The iterator is the one returned from #iteratorFor(). In the case of a Map, this will return a MapEntry to allow use of the key @see ContainerPolicy#iteratorFor(java.lang.Object) @see MapContainerPolicy.unwrapIteratorResult(Object object)

    protected ChangeRecord convertToChangeRecord(Object cloneCollection, Object backupCollection, ObjectChangeSet owner, AbstractSession session) {
        ContainerPolicy cp = getContainerPolicy();
        Object cloneIter = cp.iteratorFor(cloneCollection);
        Vector collectionChanges = new Vector(2);
        while (cp.hasNext(cloneIter)) {
            Object entry = cp.nextEntry(cloneIter, session);
            Object aggregateObject = cp.unwrapIteratorResult(entry);
            // For CR#2258 quietly ignore nulls inserted into a collection.
            if (aggregateObject != null) {
                ObjectChangeSet changes = getReferenceDescriptor(aggregateObject.getClass(), session).getObjectBuilder().compareForChange(aggregateObject, null, (UnitOfWorkChangeSet)owner.getUOWChangeSet(), session);
                changes.setNewKey(cp.keyFromIterator(cloneIter));

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        ContainerPolicy containerPolicy = getContainerPolicy();
        Object valueOfSource = getRealCollectionAttributeValueFromObject(source, mergeManager.getSession());
        Object valueOfTarget = containerPolicy.containerInstance(containerPolicy.sizeFor(valueOfSource));
        for (Object sourceValuesIterator = containerPolicy.iteratorFor(valueOfSource);
                 containerPolicy.hasNext(sourceValuesIterator);) {
            Object wrappedSourceValue = containerPolicy.nextEntry(sourceValuesIterator, mergeManager.getSession());
            Object sourceValue = containerPolicy.unwrapIteratorResult(wrappedSourceValue);


            // For some odd reason support for having null in the collection was added. This does not make sense...
            Object originalValue = null;
            if (sourceValue != null) {

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        int index = 0;
        // insert each object one by one
        ContainerPolicy cp = getContainerPolicy();
        for (Object iter = cp.iteratorFor(objects); cp.hasNext(iter);) {
            Object wrappedObject = cp.nextEntry(iter, query.getSession());
            Object object = cp.unwrapIteratorResult(wrappedObject);
            InsertObjectQuery insertQuery = getAndPrepareModifyQueryForInsert(query, object);
            ContainerPolicy.copyMapDataToRow(cp.getKeyMappingDataForWriteQuery(wrappedObject, query.getSession()), insertQuery.getModifyRow());
            if(this.listOrderField != null) {
                insertQuery.getModifyRow().add(this.listOrderField, index++);

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        if (mustDeleteReferenceObjectsOneByOne()) {
            Object objects = getRealCollectionAttributeValueFromObject(query.getObject(), query.getSession());
            ContainerPolicy cp = getContainerPolicy();
            if (this.isCascadeOnDeleteSetOnDatabase && session.isUnitOfWork()) {
                for (Object iterator = cp.iteratorFor(objects); cp.hasNext(iterator);) {
                    Object wrappedObject = cp.nextEntry(iterator, session);
                    Object object = cp.unwrapIteratorResult(wrappedObject);
                    ((UnitOfWorkImpl)session).getCascadeDeleteObjects().add(object);
                }
            }
            for (Object iter = cp.iteratorFor(objects); cp.hasNext(iter);) {

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                    Object object = cp.unwrapIteratorResult(wrappedObject);
                    ((UnitOfWorkImpl)session).getCascadeDeleteObjects().add(object);
                }
            }
            for (Object iter = cp.iteratorFor(objects); cp.hasNext(iter);) {
                Object wrappedObject = cp.nextEntry(iter, session);
                DeleteObjectQuery deleteQuery = new DeleteObjectQuery();
                deleteQuery.setIsExecutionClone(true);
                Map extraData = null;
                if (this.listOrderField != null) {
                    extraData = new DatabaseRecord(1);

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        int index = 0;
        // pre-insert each object one by one
        ContainerPolicy cp = getContainerPolicy();
        for (Object iter = cp.iteratorFor(objects); cp.hasNext(iter);) {
            Object wrappedObject = cp.nextEntry(iter, query.getSession());
            Object object = cp.unwrapIteratorResult(wrappedObject);
            InsertObjectQuery insertQuery = getAndPrepareModifyQueryForInsert(query, object);
            ContainerPolicy.copyMapDataToRow(cp.getKeyMappingDataForWriteQuery(wrappedObject, query.getSession()), insertQuery.getModifyRow());
            if(this.listOrderField != null) {
                insertQuery.getModifyRow().add(this.listOrderField, index++);

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                        ContainerPolicy containerPolicy = mapping.getContainerPolicy();
                        containerCopy = containerPolicy.containerInstance();
                        if(null != attributeValue) {
                            Object attributeValueIterator = containerPolicy.iteratorFor(attributeValue);
                            while(containerPolicy.hasNext(attributeValueIterator)) {
                                containerPolicy.addInto(containerPolicy.nextEntry(attributeValueIterator), containerCopy, session);
                            }
                        }
                    }
                    attributeAccessor.setAttributeValueInObject(entity, containerCopy);
                } else {

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    protected ChangeRecord convertToChangeRecord(Object cloneCollection, Object backupCollection, ObjectChangeSet owner, AbstractSession session) {
        ContainerPolicy cp = getContainerPolicy();
        Object cloneIter = cp.iteratorFor(cloneCollection);
        Vector collectionChanges = new Vector(2);
        while (cp.hasNext(cloneIter)) {
            Object entry = cp.nextEntry(cloneIter, session);
            Object aggregateObject = cp.unwrapIteratorResult(entry);
            // For CR#2258 quietly ignore nulls inserted into a collection.
            if (aggregateObject != null) {
                ObjectChangeSet changes = getReferenceDescriptor(aggregateObject.getClass(), session).getObjectBuilder().compareForChange(aggregateObject, null, (UnitOfWorkChangeSet)owner.getUOWChangeSet(), session);
                changes.setNewKey(cp.keyFromIterator(cloneIter));

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            //if UOW make sure the nested attributes are loaded as the clones will not be instantiated
            Object value = getRealAttributeValueFromObject(object, session);
            
            ContainerPolicy cp = this.containerPolicy;
            for (Object iterator = cp.iteratorFor(value); cp.hasNext(iterator);) {
                Object wrappedObject = cp.nextEntry(iterator, session);
                Object nestedObject = cp.unwrapIteratorResult(wrappedObject);
                getReferenceDescriptor(nestedObject.getClass(), session).getObjectBuilder().load(nestedObject, item.getGroup(nestedObject.getClass()), session, fromFetchGroup);
            }
        }
    }

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    public void loadAll(Object object, AbstractSession session, IdentityHashSet loaded) {
        instantiateAttribute(object, session);
        Object value = getRealAttributeValueFromObject(object, session);
        ContainerPolicy cp = this.containerPolicy;
        for (Object iterator = cp.iteratorFor(value); cp.hasNext(iterator);) {
            Object wrappedObject = cp.nextEntry(iterator, session);
            Object nestedObject = cp.unwrapIteratorResult(wrappedObject);
            getReferenceDescriptor(nestedObject.getClass(), session).getObjectBuilder().loadAll(nestedObject, session, loaded);
        }
    }

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