Examples of org.apache.cayenne.ObjectId

org.apache.cayenne.ObjectId
A portable global identifier for persistent objects. ObjectId can be temporary (used for transient or new uncommitted objects) or permanent (used for objects that have been already stored in DB). A temporary ObjectId stores object entity name and a pseudo-unique binary key; permanent id stores a map of values from an external persistent store (aka "primary key"). @author Andrus Adamchik


        Iterator it = objects.iterator();
        while (it.hasNext()) {
            Persistent object = (Persistent) it.next();


            ObjectId id = object.getObjectId();


            // remove object but not snapshot
            objectMap.remove(id);
            changes.remove(id);
            ids.add(id);

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     */
    void processInvalidatedIDs(Collection invalidatedIDs) {
        if (invalidatedIDs != null && !invalidatedIDs.isEmpty()) {
            Iterator it = invalidatedIDs.iterator();
            while (it.hasNext()) {
                ObjectId oid = (ObjectId) it.next();
                DataObject object = (DataObject) getNode(oid);


                if (object == null) {
                    continue;
                }


                // TODO: refactor "switch" to avoid code duplication


                switch (object.getPersistenceState()) {
                    case PersistenceState.COMMITTED:
                        object.setPersistenceState(PersistenceState.HOLLOW);
                        break;
                    case PersistenceState.MODIFIED:
                        DataContext context = (DataContext) object.getObjectContext();
                        DataRow diff = getSnapshot(oid);
                        // consult delegate if it exists
                        DataContextDelegate delegate = context.nonNullDelegate();
                        if (delegate.shouldMergeChanges(object, diff)) {
                            ClassDescriptor descriptor = context
                                    .getEntityResolver()
                                    .getClassDescriptor(oid.getEntityName());
                            DataRowUtils.forceMergeWithSnapshot(
                                    context,
                                    descriptor,
                                    object,
                                    diff);

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     * @since 1.1
     */
    void processIndirectlyModifiedIDs(Collection indirectlyModifiedIDs) {
        Iterator indirectlyModifiedIt = indirectlyModifiedIDs.iterator();
        while (indirectlyModifiedIt.hasNext()) {
            ObjectId oid = (ObjectId) indirectlyModifiedIt.next();


            // access object map directly - the method should be called in a synchronized
            // context...
            final DataObject object = (DataObject) objectMap.get(oid);


            if (object == null
                    || object.getPersistenceState() != PersistenceState.COMMITTED) {
                continue;
            }


            // for now break all "independent" object relationships...
            // in the future we may want to be more precise and go after modified
            // relationships only, or even process updated lists without invalidating...


            DataContextDelegate delegate = context.nonNullDelegate();


            if (delegate.shouldMergeChanges(object, null)) {


                ClassDescriptor descriptor = context
                        .getEntityResolver()
                        .getClassDescriptor(oid.getEntityName());
                descriptor.visitProperties(new PropertyVisitor() {


                    public boolean visitToMany(ToManyProperty property) {
                        property.invalidate(object);
                        return true;

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            Iterator it = changes.entrySet().iterator();
            while (it.hasNext()) {
                Map.Entry entry = (Map.Entry) it.next();


                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);
                }
            }

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    public void nodeCreated(Object nodeId) {


        setExternalChange(Boolean.TRUE);


        try {
            ObjectId id = (ObjectId) nodeId;
            if (id.getEntityName() == null) {
                throw new NullPointerException("Null entity name in id " + id);
            }


            ObjEntity entity = context.getEntityResolver().getObjEntity(
                    id.getEntityName());
            if (entity == null) {
                throw new IllegalArgumentException("Entity not mapped with Cayenne: "
                        + id);
            }

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        Persistent object = (Persistent) context.getGraphManager().getNode(nodeId);
        if (object != null) {
            return object;
        }


        ObjectId id = (ObjectId) nodeId;


        // this can happen if a NEW object is deleted and after that its relationships are
        // modified
        if (id.isTemporary()) {
            return null;
        }


        // skip context cache lookup, go directly to its channel
        Query query = new ObjectIdQuery((ObjectId) nodeId);

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                // skip HOLLOW objects as they likely were created from partial snapshots
                if (object.getPersistenceState() == PersistenceState.HOLLOW) {
                    continue;
                }


                ObjectId oid = object.getObjectId();


                // add snapshots if refresh is forced, or if a snapshot is
                // missing


                DataRow cachedSnapshot = (DataRow) this.snapshots.get(oid);

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        if (!updatedSnapshots.isEmpty()) {
            Iterator it = updatedSnapshots.entrySet().iterator();
            while (it.hasNext()) {
                Map.Entry entry = (Map.Entry) it.next();


                ObjectId key = (ObjectId) entry.getKey();
                DataRow newSnapshot = (DataRow) entry.getValue();
                DataRow oldSnapshot = (DataRow) snapshots.put(key, newSnapshot);


                // generate diff for the updated event, if this not a new
                // snapshot

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        // apply snapshot diffs
        if (!diffs.isEmpty()) {
            Iterator it = diffs.entrySet().iterator();
            while (it.hasNext()) {
                Map.Entry entry = (Map.Entry) it.next();
                ObjectId key = (ObjectId) entry.getKey();
                DataRow oldSnapshot = (DataRow) snapshots.remove(key);


                if (oldSnapshot == null) {
                    continue;
                }

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            diffs.add(new NodeDeleteOperation(nodeId));
        }
    }


    private boolean isClientNode(Object id) {
        ObjectId oid = (ObjectId) id;
        return resolver.getObjEntity(oid.getEntityName()).isClientAllowed();
    }

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com.adaptrex.core.persistence.cayenne.CayenneCollectionType

com.adaptrex.core.persistence.cayenne.CayennePersistenceManager

org.apache.cayenne.access.ChildDiffLoader

org.apache.cayenne.access.ClientReturnDiffFilter

org.apache.cayenne.access.ClientServerChannelQueryAction

org.apache.cayenne.access.ClientServerChannelTest

org.apache.cayenne.access.DataContext

org.apache.cayenne.access.DataContextEntityWithMeaningfulPKTest

org.apache.cayenne.access.DataContextExtrasTest

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