C# EdmModel.SetOptimisticConcurrencyAnnotation方法代码示例

        private static IEdmModel GetEdmModel()
        {
            EdmModel model = new EdmModel();

            // entity type customer
            EdmEntityType customer = new EdmEntityType("NS", "Customer");
            customer.AddKeys(customer.AddStructuralProperty("ID", EdmPrimitiveTypeKind.Int32));
            IEdmStructuralProperty customerName = customer.AddStructuralProperty("Name", EdmPrimitiveTypeKind.String);
            model.AddElement(customer);

            // entity sets
            EdmEntityContainer container = new EdmEntityContainer("NS", "Default");
            model.AddElement(container);
            EdmEntitySet customers = container.AddEntitySet("ETagUntypedCustomers", customer);

            model.SetOptimisticConcurrencyAnnotation(customers, new[] { customerName });

            return model;
        }

        public void AutoComputeETagWithOptimisticConcurrencyAnnotation()
        {
            const string expected = "{" +
                "\"@odata.context\":\"http://example.com/$metadata#People/$entity\"," +
                "\"@odata.id\":\"People(123)\"," +
                "\"@odata.etag\":\"W/\\\"'lucy',12306\\\"\"," +
                "\"@odata.editLink\":\"People(123)\"," +
                "\"@odata.mediaEditLink\":\"People(123)/$value\"," +
                "\"ID\":123," +
                "\"Name\":\"lucy\"," +
                "\"Class\":12306," +
                "\"Alias\":\"lily\"}";
            EdmModel model = new EdmModel();

            EdmEntityType personType = new EdmEntityType("MyNs", "Person", null, false, false, true);
            personType.AddKeys(personType.AddStructuralProperty("ID", EdmPrimitiveTypeKind.Int32));
            var nameProperty = personType.AddStructuralProperty("Name", EdmCoreModel.Instance.GetString(isNullable: true));
            var classProperty = personType.AddStructuralProperty("Class", EdmPrimitiveTypeKind.Int32);
            personType.AddStructuralProperty("Alias", EdmCoreModel.Instance.GetString(isNullable: true), null, EdmConcurrencyMode.Fixed);

            var container = new EdmEntityContainer("MyNs", "Container");
            model.AddElement(personType);
            container.AddEntitySet("People", personType);
            model.AddElement(container);

            IEdmEntitySet peopleSet = model.FindDeclaredEntitySet("People");
            model.SetOptimisticConcurrencyAnnotation(peopleSet, new[] { nameProperty, classProperty });
            ODataEntry entry = new ODataEntry
            {
                Properties = new[]
                {
                    new ODataProperty {Name = "ID", Value = 123}, 
                    new ODataProperty {Name = "Name", Value = "lucy"}, 
                    new ODataProperty {Name = "Class", Value = 12306}, 
                    new ODataProperty {Name = "Alias", Value = "lily"},
                }
            };

            string actual = GetWriterOutputForContentTypeAndKnobValue(entry, model, peopleSet, personType);
            Assert.Equal(expected, actual);
        }

        public void VerifyAnnotationComputedConcurrency()
        {
            var model = new EdmModel();
            var entity = new EdmEntityType("NS1", "Product");
            var entityId = entity.AddStructuralProperty("Id", EdmCoreModel.Instance.GetInt32(false));
            entity.AddKeys(entityId);
            EdmStructuralProperty name1 = entity.AddStructuralProperty("Name", EdmCoreModel.Instance.GetString(false));
            EdmStructuralProperty timeVer = entity.AddStructuralProperty("UpdatedTime", EdmCoreModel.Instance.GetDate(false));
            model.AddElement(entity);

            SetComputedAnnotation(model, entityId);  // semantic meaning is V3's 'Identity' for Key profperty
            SetComputedAnnotation(model, timeVer);   // semantic meaning is V3's 'Computed' for non-key profperty

            var entityContainer = new EdmEntityContainer("NS1", "Container");
            model.AddElement(entityContainer);
            EdmEntitySet set1 = new EdmEntitySet(entityContainer, "Products", entity);
            model.SetOptimisticConcurrencyAnnotation(set1, new IEdmStructuralProperty[] { entityId, timeVer });
            entityContainer.AddElement(set1);

            string csdlStr = GetEdmx(model, EdmxTarget.OData);
            Assert.AreEqual(@"<?xml version=""1.0"" encoding=""utf-16""?><edmx:Edmx Version=""4.0"" xmlns:edmx=""http://docs.oasis-open.org/odata/ns/edmx""><edmx:DataServices><Schema Namespace=""NS1"" xmlns=""http://docs.oasis-open.org/odata/ns/edm""><EntityType Name=""Product""><Key><PropertyRef Name=""Id"" /></Key><Property Name=""Id"" Type=""Edm.Int32"" Nullable=""false""><Annotation Term=""Org.OData.Core.V1.Computed"" Bool=""true"" /></Property><Property Name=""Name"" Type=""Edm.String"" Nullable=""false"" /><Property Name=""UpdatedTime"" Type=""Edm.Date"" Nullable=""false""><Annotation Term=""Org.OData.Core.V1.Computed"" Bool=""true"" /></Property></EntityType><EntityContainer Name=""Container""><EntitySet Name=""Products"" EntityType=""NS1.Product""><Annotation Term=""Org.OData.Core.V1.OptimisticConcurrency""><Collection><PropertyPath>Id</PropertyPath><PropertyPath>UpdatedTime</PropertyPath></Collection></Annotation></EntitySet></EntityContainer></Schema></edmx:DataServices></edmx:Edmx>", csdlStr);
        }

        /// <inheritdoc/>
        public Task<IEdmModel> GetModelAsync(InvocationContext context, CancellationToken cancellationToken)
        {
            Ensure.NotNull(context, "context");
            var model = new EdmModel();
            var apiContext = context.ApiContext;
            var dbContext = apiContext.GetProperty<DbContext>(DbApiConstants.DbContextKey);
            var elementMap = new Dictionary<MetadataItem, IEdmElement>();
            var efModel = (dbContext as IObjectContextAdapter)
                .ObjectContext.MetadataWorkspace;
            var namespaceName = efModel.GetItems<EntityType>(DataSpace.CSpace)
                .Select(t => efModel.GetObjectSpaceType(t).NamespaceName)
                .GroupBy(nameSpace => nameSpace)
                .Select(group => new
                {
                    NameSpace = group.Key,
                    Count = group.Count(),
                })
                .OrderByDescending(nsItem => nsItem.Count)
                .Select(nsItem => nsItem.NameSpace)
                .FirstOrDefault();
            if (namespaceName == null)
            {
                // When dbContext has not a namespace, just use its type name as namespace.
                namespaceName = dbContext.GetType().Namespace ?? dbContext.GetType().Name;
            }

            var efEntityContainer = efModel.GetItems<EntityContainer>(DataSpace.CSpace).Single();
            var entityContainer = new EdmEntityContainer(namespaceName, efEntityContainer.Name);
            elementMap.Add(efEntityContainer, entityContainer);

            // TODO GitHubIssue#36 : support complex and enumeration types
            foreach (var efEntitySet in efEntityContainer.EntitySets)
            {
                var efEntityType = efEntitySet.ElementType;
                if (elementMap.ContainsKey(efEntityType))
                {
                    continue;
                }

                List<EdmStructuralProperty> concurrencyProperties;
                var entityType = CreateEntityType(efModel, efEntityType, model, elementMap, out concurrencyProperties);
                model.AddElement(entityType);
                elementMap.Add(efEntityType, entityType);
                var entitySet = entityContainer.AddEntitySet(efEntitySet.Name, entityType);
                if (concurrencyProperties != null)
                {
                    model.SetOptimisticConcurrencyAnnotation(entitySet, concurrencyProperties);
                }

                elementMap.Add(efEntitySet, entitySet);
            }

            foreach (var efAssociationSet in efEntityContainer.AssociationSets)
            {
                AddNavigationProperties(efAssociationSet, elementMap);
                AddNavigationPropertyBindings(efAssociationSet, elementMap);
            }

            // TODO GitHubIssue#36 : support function imports
            model.AddElement(entityContainer);

            return Task.FromResult<IEdmModel>(model);
        }

        /// <summary>
        /// Asynchronously produces a base model.
        /// </summary>
        /// <param name="context">
        /// The model context.
        /// </param>
        /// <param name="cancellationToken">
        /// A cancellation token.
        /// </param>
        /// <returns>
        /// A task that represents the asynchronous
        /// operation whose result is the base model.
        /// </returns>
        public Task<IEdmModel> GetModelAsync(
            InvocationContext context,
            CancellationToken cancellationToken)
        {
            var model = new EdmModel();
            var domainContext = context.ApiContext;
            var dbContext = domainContext.GetProperty<DbContext>(DbApiConstants.DbContextKey);
            var elementMap = new Dictionary<IAnnotatable, IEdmElement>();
            var efModel = dbContext.Model;
            var namespaceName = efModel.EntityTypes
                .Select(t => t.HasClrType() ? t.ClrType.Namespace : null)
                .Where(t => t != null)
                .GroupBy(nameSpace => nameSpace)
                .Select(group => new
                {
                    NameSpace = group.Key,
                    Count = group.Count(),
                })
                .OrderByDescending(nsItem => nsItem.Count)
                .Select(nsItem => nsItem.NameSpace)
                .FirstOrDefault();
            if (namespaceName == null)
            {
                // When dbContext has not a namespace, just use its type name as namespace.
                namespaceName = dbContext.GetType().Namespace ?? dbContext.GetType().Name;
            }

            var entityTypes = efModel.EntityTypes;
            var entityContainer = new EdmEntityContainer(
                namespaceName, "Container");

            var dbSetProperties = dbContext.GetType().
                GetProperties(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance).
                Where(e => e.PropertyType.IsGenericType && e.PropertyType.GetGenericTypeDefinition() == typeof(DbSet<>)).
                ToDictionary(e => e.PropertyType.GetGenericArguments()[0]);

            // TODO GitHubIssue#36 : support complex and entity inheritance
            foreach (var efEntityType in entityTypes)
            {
                if (elementMap.ContainsKey(efEntityType))
                {
                    continue;
                }
                List<EdmStructuralProperty> concurrencyProperties;
                var entityType = ModelProducer.CreateEntityType(
                    efModel, efEntityType, model, out concurrencyProperties);
                model.AddElement(entityType);
                elementMap.Add(efEntityType, entityType);

                System.Reflection.PropertyInfo propInfo;
                if (dbSetProperties.TryGetValue(efEntityType.ClrType, out propInfo))
                {
                    var entitySet = entityContainer.AddEntitySet(propInfo.Name, entityType);
                    if (concurrencyProperties != null)
                    {
                        model.SetOptimisticConcurrencyAnnotation(entitySet, concurrencyProperties);
                    }
                }
            }

            foreach (var efEntityType in entityTypes)
            {
                foreach (var navi in efEntityType.GetNavigations())
                {
                    ModelProducer.AddNavigationProperties(
                        efModel, navi, model, elementMap);
                    ModelProducer.AddNavigationPropertyBindings(
                        efModel, navi, entityContainer, elementMap);
                }
            }

            // TODO GitHubIssue#36 : support function imports
            model.AddElement(entityContainer);

            return Task.FromResult<IEdmModel>(model);
        }

//.........这里部分代码省略.........

            var me = new EdmSingleton(defaultContainer, "Me", personType);
            defaultContainer.AddElement(me);

            personSet.AddNavigationTarget(friendsnNavigation, personSet);
            me.AddNavigationTarget(friendsnNavigation, personSet);

            personSet.AddNavigationTarget(flightAirlineNavigation, airlineSet);
            me.AddNavigationTarget(flightAirlineNavigation, airlineSet);

            personSet.AddNavigationTarget(flightFromAirportNavigation, airportSet);
            me.AddNavigationTarget(flightFromAirportNavigation, airportSet);

            personSet.AddNavigationTarget(flightToAirportNavigation, airportSet);
            me.AddNavigationTarget(flightToAirportNavigation, airportSet);

            personSet.AddNavigationTarget(personPhotoNavigation, photoSet);
            me.AddNavigationTarget(personPhotoNavigation, photoSet);

            personSet.AddNavigationTarget(tripPhotosNavigation, photoSet);
            me.AddNavigationTarget(tripPhotosNavigation, photoSet);

            var getFavoriteAirlineFunction = new EdmFunction(ns, "GetFavoriteAirline",
                new EdmEntityTypeReference(airlineType, false), true,
                new EdmPathExpression("person/Trips/PlanItems/Microsoft.OData.SampleService.Models.TripPin.Flight/Airline"), true);
            getFavoriteAirlineFunction.AddParameter("person", new EdmEntityTypeReference(personType, false));
            model.AddElement(getFavoriteAirlineFunction);

            var getInvolvedPeopleFunction = new EdmFunction(ns, "GetInvolvedPeople",
                new EdmCollectionTypeReference(new EdmCollectionType(new EdmEntityTypeReference(personType, false))), true, null, true);
            getInvolvedPeopleFunction.AddParameter("trip", new EdmEntityTypeReference(tripType, false));
            model.AddElement(getInvolvedPeopleFunction);

            var getFriendsTripsFunction = new EdmFunction(ns, "GetFriendsTrips",
                new EdmCollectionTypeReference(new EdmCollectionType(new EdmEntityTypeReference(tripType, false))),
                true, new EdmPathExpression("person/Friends/Trips"), true);
            getFriendsTripsFunction.AddParameter("person", new EdmEntityTypeReference(personType, false));
            getFriendsTripsFunction.AddParameter("userName", EdmCoreModel.Instance.GetString(false));
            model.AddElement(getFriendsTripsFunction);

            var getNearestAirport = new EdmFunction(ns, "GetNearestAirport",
                new EdmEntityTypeReference(airportType, false),
                false, null, true);
            getNearestAirport.AddParameter("lat", EdmCoreModel.Instance.GetDouble(false));
            getNearestAirport.AddParameter("lon", EdmCoreModel.Instance.GetDouble(false));
            model.AddElement(getNearestAirport);
            var getNearestAirportFunctionImport = (IEdmFunctionImport)defaultContainer.AddFunctionImport("GetNearestAirport", getNearestAirport, new EdmEntitySetReferenceExpression(airportSet), true);

            var resetDataSourceAction = new EdmAction(ns, "ResetDataSource", null, false, null);
            model.AddElement(resetDataSourceAction);
            defaultContainer.AddActionImport(resetDataSourceAction);

            var shareTripAction = new EdmAction(ns, "ShareTrip", null, true, null);
            shareTripAction.AddParameter("person", new EdmEntityTypeReference(personType, false));
            shareTripAction.AddParameter("userName", EdmCoreModel.Instance.GetString(false));
            shareTripAction.AddParameter("tripId", EdmCoreModel.Instance.GetInt32(false));
            model.AddElement(shareTripAction);

            model.SetDescriptionAnnotation(defaultContainer, "TripPin service is a sample service for OData V4.");
            model.SetOptimisticConcurrencyAnnotation(personSet, personType.StructuralProperties().Where(p => p.Name == "Concurrency"));
            // TODO: currently singleton does not support ETag feature
            // model.SetOptimisticConcurrencyAnnotation(me, personType.StructuralProperties().Where(p => p.Name == "Concurrency"));
            model.SetResourcePathCoreAnnotation(personSet, "People");
            model.SetResourcePathCoreAnnotation(me, "Me");
            model.SetResourcePathCoreAnnotation(airlineSet, "Airlines");
            model.SetResourcePathCoreAnnotation(airportSet, "Airports");
            model.SetResourcePathCoreAnnotation(photoSet, "Photos");
            model.SetResourcePathCoreAnnotation(getNearestAirportFunctionImport, "Microsoft.OData.SampleService.Models.TripPin.GetNearestAirport");
            model.SetDereferenceableIDsCoreAnnotation(defaultContainer, true);
            model.SetConventionalIDsCoreAnnotation(defaultContainer, true);
            model.SetPermissionsCoreAnnotation(personType.FindProperty("UserName"), CorePermission.Read);
            model.SetPermissionsCoreAnnotation(airlineType.FindProperty("AirlineCode"), CorePermission.Read);
            model.SetPermissionsCoreAnnotation(airportType.FindProperty("IcaoCode"), CorePermission.Read);
            model.SetPermissionsCoreAnnotation(planItemType.FindProperty("PlanItemId"), CorePermission.Read);
            model.SetPermissionsCoreAnnotation(tripType.FindProperty("TripId"), CorePermission.Read);
            model.SetPermissionsCoreAnnotation(photoType.FindProperty("Id"), CorePermission.Read);
            model.SetImmutableCoreAnnotation(airportType.FindProperty("IataCode"), true);
            model.SetComputedCoreAnnotation(personType.FindProperty("Concurrency"), true);
            model.SetAcceptableMediaTypesCoreAnnotation(photoType, new[] { "image/jpeg" });
            model.SetConformanceLevelCapabilitiesAnnotation(defaultContainer, CapabilitiesConformanceLevelType.Advanced);
            model.SetSupportedFormatsCapabilitiesAnnotation(defaultContainer, new[] { "application/json;odata.metadata=full;IEEE754Compatible=false;odata.streaming=true", "application/json;odata.metadata=minimal;IEEE754Compatible=false;odata.streaming=true", "application/json;odata.metadata=none;IEEE754Compatible=false;odata.streaming=true" });
            model.SetAsynchronousRequestsSupportedCapabilitiesAnnotation(defaultContainer, true);
            model.SetBatchContinueOnErrorSupportedCapabilitiesAnnotation(defaultContainer, false);
            model.SetNavigationRestrictionsCapabilitiesAnnotation(personSet, CapabilitiesNavigationType.None, new[] { new Tuple<IEdmNavigationProperty, CapabilitiesNavigationType>(friendsnNavigation, CapabilitiesNavigationType.Recursive) });
            model.SetFilterFunctionsCapabilitiesAnnotation(defaultContainer, new[] { "contains", "endswith", "startswith", "length", "indexof", "substring", "tolower", "toupper", "trim", "concat", "year", "month", "day", "hour", "minute", "second", "round", "floor", "ceiling", "cast", "isof" });
            model.SetSearchRestrictionsCapabilitiesAnnotation(personSet, true, CapabilitiesSearchExpressions.None);
            model.SetSearchRestrictionsCapabilitiesAnnotation(airlineSet, true, CapabilitiesSearchExpressions.None);
            model.SetSearchRestrictionsCapabilitiesAnnotation(airportSet, true, CapabilitiesSearchExpressions.None);
            model.SetSearchRestrictionsCapabilitiesAnnotation(photoSet, true, CapabilitiesSearchExpressions.None);
            model.SetInsertRestrictionsCapabilitiesAnnotation(personSet, true, new[] { personTripNavigation, friendsnNavigation });
            model.SetInsertRestrictionsCapabilitiesAnnotation(airlineSet, true, null);
            model.SetInsertRestrictionsCapabilitiesAnnotation(airportSet, false, null);
            model.SetInsertRestrictionsCapabilitiesAnnotation(photoSet, true, null);
            // TODO: model.SetUpdateRestrictionsCapabilitiesAnnotation();
            model.SetDeleteRestrictionsCapabilitiesAnnotation(airportSet, false, null);
            model.SetISOCurrencyMeasuresAnnotation(tripType.FindProperty("Budget"), "USD");
            model.SetScaleMeasuresAnnotation(tripType.FindProperty("Budget"), 2);

            return model;
        }

//.........这里部分代码省略.........
                {
                    Name = "OrderLines",
                    TargetMultiplicity = EdmMultiplicity.Many,
                    Target = orderLine,
                    ContainsTarget = true,
                });

           EdmNavigationProperty nonContainedOrderLinesNavProp = myOrder.AddUnidirectionalNavigation(
                new EdmNavigationPropertyInfo
                {
                    Name = "NonContainedOrderLines",
                    TargetMultiplicity = EdmMultiplicity.Many,
                    Target = orderLine,
                    ContainsTarget = false,
                });

            EdmAction tag = new EdmAction("NS", "tag", returnType: null, isBound: true, entitySetPathExpression: null);
            tag.AddParameter("entity", new EdmEntityTypeReference(orderLine, false));
            model.AddElement(tag);

            // entity sets
            EdmEntityContainer container = new EdmEntityContainer("NS", "ModelWithInheritance");
            model.AddElement(container);
            EdmEntitySet customers = container.AddEntitySet("Customers", customer);
            EdmEntitySet orders = container.AddEntitySet("Orders", order);
            EdmEntitySet myOrders = container.AddEntitySet("MyOrders", myOrder);

            // singletons
            EdmSingleton vipCustomer = container.AddSingleton("VipCustomer", customer);
            EdmSingleton mary = container.AddSingleton("Mary", customer);
            EdmSingleton rootOrder = container.AddSingleton("RootOrder", order);

            // annotations
            model.SetOptimisticConcurrencyAnnotation(customers, new[] { city });

            // containment
            IEdmContainedEntitySet orderLines = (IEdmContainedEntitySet)myOrders.FindNavigationTarget(orderLinesNavProp);
            
            // no-containment
            IEdmNavigationSource nonContainedOrderLines = myOrders.FindNavigationTarget(nonContainedOrderLinesNavProp);

            // actions
            EdmAction upgrade = new EdmAction("NS", "upgrade", returnType: null, isBound: true, entitySetPathExpression: null);
            upgrade.AddParameter("entity", new EdmEntityTypeReference(customer, false));
            model.AddElement(upgrade);

            EdmAction specialUpgrade =
                new EdmAction("NS", "specialUpgrade", returnType: null, isBound: true, entitySetPathExpression: null);
            specialUpgrade.AddParameter("entity", new EdmEntityTypeReference(specialCustomer, false));
            model.AddElement(specialUpgrade);

            // actions bound to collection
            EdmAction upgradeAll = new EdmAction("NS", "UpgradeAll", returnType: null, isBound: true, entitySetPathExpression: null);
            upgradeAll.AddParameter("entityset",
                new EdmCollectionTypeReference(new EdmCollectionType(new EdmEntityTypeReference(customer, false))));
            model.AddElement(upgradeAll);

            EdmAction upgradeSpecialAll = new EdmAction("NS", "UpgradeSpecialAll", returnType: null, isBound: true, entitySetPathExpression: null);
            upgradeSpecialAll.AddParameter("entityset",
                new EdmCollectionTypeReference(new EdmCollectionType(new EdmEntityTypeReference(specialCustomer, false))));
            model.AddElement(upgradeSpecialAll);

            // functions
            IEdmTypeReference returnType = EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.Boolean, isNullable: false);
            IEdmTypeReference stringType = EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.String, isNullable: false);
            IEdmTypeReference intType = EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.Int32, isNullable: false);

        public void TestCoreOptimisticConcurrencyInlineAnnotation()
        {
            EdmModel model = new EdmModel();

            EdmEntityContainer container = new EdmEntityContainer("DefaultNamespace", "Container");
            EdmEntityType personType = new EdmEntityType("DefaultNamespace", "Person");
            EdmStructuralProperty propertyId = personType.AddStructuralProperty("Id", EdmCoreModel.Instance.GetInt32(false));
            personType.AddKeys(propertyId);
            IEdmStructuralProperty concurrencyProperty = personType.AddStructuralProperty("Concurrency", EdmCoreModel.Instance.GetInt32(true));
            model.AddElement(personType);
            container.AddEntitySet("People", personType);
            model.AddElement(container);
            container.AddEntitySet("Students", personType);

            IEdmEntitySet peopleSet = model.FindDeclaredEntitySet("People");
            model.SetOptimisticConcurrencyAnnotation(peopleSet, new[] { concurrencyProperty });
            model.SetOptimisticConcurrencyAnnotation(peopleSet, new[] { concurrencyProperty });

            IEdmEntitySet studentSet = model.FindDeclaredEntitySet("Students");
            model.SetOptimisticConcurrencyAnnotation(studentSet, new[] { concurrencyProperty });

            IEnumerable<EdmError> errors;
            StringWriter sw = new StringWriter();
            XmlWriterSettings settings = new XmlWriterSettings();
            settings.Indent = true;
            settings.Encoding = System.Text.Encoding.UTF8;
            XmlWriter xw = XmlWriter.Create(sw, settings);
            model.TryWriteCsdl(xw, out errors);
            xw.Flush();
            xw.Close();
            var actual = sw.ToString();

            const string expected = @"<?xml version=""1.0"" encoding=""utf-16""?>
<Schema Namespace=""DefaultNamespace"" xmlns=""http://docs.oasis-open.org/odata/ns/edm"">
  <EntityType Name=""Person"">
    <Key>
      <PropertyRef Name=""Id"" />
    </Key>
    <Property Name=""Id"" Type=""Edm.Int32"" Nullable=""false"" />
    <Property Name=""Concurrency"" Type=""Edm.Int32"" />
  </EntityType>
  <EntityContainer Name=""Container"">
    <EntitySet Name=""People"" EntityType=""DefaultNamespace.Person"">
      <Annotation Term=""Org.OData.Core.V1.OptimisticConcurrency"">
        <Collection>
          <PropertyPath>Concurrency</PropertyPath>
        </Collection>
      </Annotation>
    </EntitySet>
    <EntitySet Name=""Students"" EntityType=""DefaultNamespace.Person"">
      <Annotation Term=""Org.OData.Core.V1.OptimisticConcurrency"">
        <Collection>
          <PropertyPath>Concurrency</PropertyPath>
        </Collection>
      </Annotation>
    </EntitySet>
  </EntityContainer>
</Schema>";

            Assert.AreEqual(expected, actual);
        }