Examples with ObjectId org.apache.cayenne.ObjectId used on opensource projects

Example 21 with ObjectId

use of org.apache.cayenne.ObjectId in project cayenne by apache.

the class ObjectStore method objectsUnregistered.

/**
 * Evicts a collection of DataObjects from the ObjectStore, invalidates the underlying
 * cache snapshots. Changes objects state to TRANSIENT. This method can be used for
 * manual cleanup of Cayenne cache.
 */
// this method is exactly the same as "objectsInvalidated", only additionally it
// throws out registered objects
public synchronized void objectsUnregistered(Collection objects) {
    if (objects.isEmpty()) {
        return;
    }
    Collection<ObjectId> ids = new ArrayList<>(objects.size());
    for (Object object1 : objects) {
        Persistent object = (Persistent) object1;
        ObjectId id = object.getObjectId();
        // remove object but not snapshot
        objectMap.remove(id);
        changes.remove(id);
        ids.add(id);
        object.setObjectContext(null);
        object.setPersistenceState(PersistenceState.TRANSIENT);
    }
    // and keep unregister local even for non-nested DC?
    if (getDataRowCache() != null) {
        // send an event for removed snapshots
        getDataRowCache().processSnapshotChanges(this, Collections.<ObjectId, DataRow>emptyMap(), Collections.<ObjectId>emptyList(), ids, Collections.<ObjectId>emptyList());
    }
}

Example 22 with ObjectId

use of org.apache.cayenne.ObjectId in project cayenne by apache.

the class ObjectStore method processSnapshotEvent.

/**
 * @since 1.2
 */
synchronized void processSnapshotEvent(SnapshotEvent event) {
    Map<ObjectId, DataRow> modifiedDiffs = event.getModifiedDiffs();
    if (modifiedDiffs != null && !modifiedDiffs.isEmpty()) {
        for (Map.Entry<ObjectId, DataRow> entry : modifiedDiffs.entrySet()) {
            processUpdatedSnapshot(entry.getKey(), entry.getValue());
        }
    }
    Collection<ObjectId> deletedIDs = event.getDeletedIds();
    if (deletedIDs != null && !deletedIDs.isEmpty()) {
        for (ObjectId deletedID : deletedIDs) {
            processDeletedID(deletedID);
        }
    }
    processInvalidatedIDs(event.getInvalidatedIds());
    processIndirectlyModifiedIDs(event.getIndirectlyModifiedIds());
    // TODO: andrus, 3/28/2006 - 'SnapshotEventDecorator' serves as a bridge (or
    // rather a noop wrapper) between old snapshot events and new GraphEvents. Once
    // SnapshotEvents are replaced with GraphEvents (in 2.0) we won't need it
    GraphDiff diff = new SnapshotEventDecorator(event);
    ObjectContext originatingContext = (event.getPostedBy() instanceof ObjectContext) ? (ObjectContext) event.getPostedBy() : null;
    context.fireDataChannelChanged(originatingContext, diff);
}

Example 23 with ObjectId

use of org.apache.cayenne.ObjectId in project cayenne by apache.

the class ObjectStoreGraphDiff method preprocess.

private void preprocess(ObjectStore objectStore) {
    Map<Object, ObjectDiff> changes = getChangesByObjectId();
    if (!changes.isEmpty()) {
        for (Entry<Object, ObjectDiff> entry : changes.entrySet()) {
            ObjectId id = (ObjectId) entry.getKey();
            Persistent object = (Persistent) objectStore.getNode(id);
            // address manual id override.
            ObjectId objectId = object.getObjectId();
            if (!id.equals(objectId)) {
                if (objectId != null) {
                    Map<String, Object> replacement = id.getReplacementIdMap();
                    replacement.clear();
                    replacement.putAll(objectId.getIdSnapshot());
                }
                object.setObjectId(id);
            }
        }
    }
}

Example 24 with ObjectId

use of org.apache.cayenne.ObjectId in project cayenne by apache.

the class EJBQLPathAnaliserTranslator method processParameter.

private void processParameter(String boundName, EJBQLExpression expression) {
    Object object = context.getBoundParameter(boundName);
    Map<?, ?> map = null;
    if (object instanceof Persistent) {
        map = ((Persistent) object).getObjectId().getIdSnapshot();
    } else if (object instanceof ObjectId) {
        map = ((ObjectId) object).getIdSnapshot();
    } else if (object instanceof Map) {
        map = (Map<?, ?>) object;
    }
    if (map != null) {
        if (map.size() == 1) {
            context.rebindParameter(boundName, map.values().iterator().next());
        } else {
            addMultiColumnOperand(EJBQLMultiColumnOperand.getObjectOperand(context, map));
            return;
        }
    }
    if (object != null) {
        context.append(" #bind($").append(boundName).append(")");
    } else {
        String type = null;
        Node parent = ((SimpleNode) expression).jjtGetParent();
        context.pushMarker("@processParameter", true);
        EJBQLPathAnaliserTranslator translator = new EJBQLPathAnaliserTranslator(context);
        parent.visit(translator);
        translator.visitPath(parent, parent.getChildrenCount());
        String id = translator.idPath;
        if (id != null) {
            ClassDescriptor descriptor = context.getEntityDescriptor(id);
            if (descriptor == null) {
                throw new EJBQLException("Unmapped id variable: " + id);
            }
            String pathChunk = translator.lastPathComponent;
            PropertyDescriptor property = descriptor.getProperty(pathChunk);
            if (property instanceof AttributeProperty) {
                String atrType = ((AttributeProperty) property).getAttribute().getType();
                type = TypesMapping.getSqlNameByType(TypesMapping.getSqlTypeByJava(atrType));
            }
        }
        context.popMarker();
        if (type == null) {
            type = "VARCHAR";
        }
        // this is a hack to prevent execptions on DB's like Derby for
        // expressions
        // "X = NULL". The 'VARCHAR' parameter is totally bogus, but seems
        // to work on
        // all tested DB's... Also note what JPA spec, chapter 4.11 says:
        // "Comparison
        // or arithmetic operations with a NULL value always yield an
        // unknown value."
        // TODO: andrus 6/28/2007 Ideally we should track the type of the
        // current
        // expression to provide a meaningful type.
        context.append(" #bind($").append(boundName).append(" '" + type + "')");
    }
}

Example 25 with ObjectId

use of org.apache.cayenne.ObjectId in project cayenne by apache.

the class DeletedDiffProcessor method nodeRemoved.

@Override
public void nodeRemoved(Object nodeId) {
    ObjectId id = (ObjectId) nodeId;
    final MutableObjectChange objectChangeSet = changeSet.getOrCreate(id, ObjectChangeType.DELETE);
    // TODO: rewrite with SelectById query after Cayenne upgrade
    ObjectIdQuery query = new ObjectIdQuery(id, true, ObjectIdQuery.CACHE);
    QueryResponse result = channel.onQuery(null, query);
    @SuppressWarnings("unchecked") List<DataRow> rows = result.firstList();
    if (rows.isEmpty()) {
        LOGGER.warn("No DB snapshot for object to be deleted, no changes will be recorded. ID: " + id);
        return;
    }
    final DataRow row = rows.get(0);
    ClassDescriptor descriptor = channel.getEntityResolver().getClassDescriptor(id.getEntityName());
    final CommitLogEntity entity = entityFactory.getEntity(id);
    descriptor.visitProperties(new PropertyVisitor() {

        @Override
        public boolean visitAttribute(AttributeProperty property) {
            if (!entity.isIncluded(property.getName())) {
                return true;
            }
            Object value;
            if (entity.isConfidential(property.getName())) {
                value = Confidential.getInstance();
            } else {
                String key = property.getAttribute().getDbAttributeName();
                value = row.get(key);
            }
            if (value != null) {
                objectChangeSet.attributeChanged(property.getName(), value, null);
            }
            return true;
        }

        @Override
        public boolean visitToOne(ToOneProperty property) {
            // TODO record FK changes?
            return true;
        }

        @Override
        public boolean visitToMany(ToManyProperty property) {
            return true;
        }
    });
}