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

                    + dataObjectClass.getName());
        }


        String pkName = getPkName(dataObjectClass);


        ObjectId objectId = new ObjectId(objEntity.getName(), pkName, id);


        int refreshMode = (refresh) ? ObjectIdQuery.CACHE_REFRESH : ObjectIdQuery.CACHE;


        ObjectIdQuery objectIdQuery = new ObjectIdQuery(objectId, false, refreshMode);

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            throw new RuntimeException(msg);
        }


        DbAttribute attr = (DbAttribute) pkAttributes.get(0);


        return new ObjectId(entity.getName(), attr.getName(), pk);
    }

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        Validate.notNull(objectContext, "Null objectContext parameter");
        Validate.notNull(objectContext, "Null dataObjectClass parameter");
        Validate.notNull(objectContext, "Null pk parameter");


        ObjectId objectId = createObjectId(objectContext, dataObjectClass, pk);


        Query query = new ObjectIdQuery(objectId, false, ObjectIdQuery.CACHE_REFRESH);


        List objects = objectContext.performQuery(query);

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        }


        // this will initialize to-many lists
        descriptor.injectValueHolders(object);


        ObjectId id = new ObjectId(entityName);


        // note that the order of initialization of persistence artifacts below is
        // important - do not change it lightly
        object.setObjectId(id);

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                        "Persistent is already registered with another DataContext. "
                                + "Try using 'localObjects()' instead.");
            }
        }
        else {
            persistent.setObjectId(new ObjectId(entity.getName()));
        }


        ClassDescriptor descriptor = getEntityResolver().getClassDescriptor(
                entity.getName());
        if (descriptor == null) {

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                    .entrySet()) {


                ClassDescriptor descriptor = entry.getKey();


                for (Persistent object : entry.getValue()) {
                    ObjectId id = object.getObjectId();


                    ObjectId finalId;


                    // record id change and update attributes for generated ids
                    if (id.isReplacementIdAttached()) {


                        Map<String, Object> replacement = id.getReplacementIdMap();
                        for (AttributeProperty property : descriptor.getIdProperties()) {


                            Object value = replacement.get(property
                                    .getAttribute()
                                    .getDbAttributeName());


                            // TODO: andrus, 11/28/2006: this operation may be redundant
                            // if the id wasn't generated. We may need to optimize it...
                            if (value != null) {
                                property.writePropertyDirectly(object, null, value);
                            }
                        }


                        ObjectId replacementId = id.createReplacementId();


                        result.add(new NodeIdChangeOperation(id, replacementId));


                        // classify replaced permanent ids as "deleted", as
                        // DataRowCache has no notion of replaced id...

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    }


    public void testEncodeAsEJBQL_PersistentParamater() {


        Artist a = new Artist();
        ObjectId aId = new ObjectId("Artist", Artist.ARTIST_ID_PK_COLUMN, 1);
        a.setObjectId(aId);


        Expression e = ExpressionFactory.matchExp("artist", a);


        StringWriter buffer = new StringWriter();

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        if (object instanceof ObjEntity) {
            return (ObjEntity) object;
        }


        if (object instanceof Persistent) {
            ObjectId id = ((Persistent) object).getObjectId();
            if (id != null) {
                return _lookupObjEntity(id.getEntityName());
            }
        }
        else if (object instanceof Class) {
            return lookupObjEntity((Class<?>) object);
        }

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                props,
                new DefaultEventManager());
        assertEquals(2, cache.maximumSize());
        assertEquals(0, cache.size());


        ObjectId key1 = new ObjectId("Artist", Artist.ARTIST_ID_PK_COLUMN, 1);
        Map diff1 = new HashMap();
        diff1.put(key1, new DataRow(1));


        ObjectId key2 = new ObjectId("Artist", Artist.ARTIST_ID_PK_COLUMN, 2);
        Map diff2 = new HashMap();
        diff2.put(key2, new DataRow(1));


        ObjectId key3 = new ObjectId("Artist", Artist.ARTIST_ID_PK_COLUMN, 3);
        Map diff3 = new HashMap();
        diff3.put(key3, new DataRow(1));


        cache.processSnapshotChanges(
                this,

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    private Object convertObject(
            EntityResolver resolver,
            DeepMergeOperation merger,
            Persistent object) {


        ObjectId id = object.getObjectId();


        // sanity check
        if (id == null) {
            throw new CayenneRuntimeException("Server returned an object without an id: "
                    + object);
        }


        // have to resolve descriptor here for every object, as often a query will not
        // have any info indicating the entity type
        ClassDescriptor descriptor = resolver.getClassDescriptor(id.getEntityName());


        return merger.merge(object, descriptor);
    }

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