C# ObjectRelationalMapper.VersionProperty方法代码示例

        public void DefiningAndCustomizingVersionThroughBaseImplementation()
        {
            // In this example I'll show how you can work with Version and how ConfORM understands OOP

            var orm = new ObjectRelationalMapper();
            var mapper = new Mapper(orm, new CoolPatternsAppliersHolder(orm));

            // In this case I will use the definition of table-to-class strategy class by class
            orm.TablePerClass<CurrencyDefinition>();
            orm.TablePerClass<Company>();
            orm.TablePerClass<Customer>();
            orm.TablePerClass<Provider>();

            // Defining relations
            orm.OneToOne<Company, Customer>();
            orm.OneToOne<Company, Provider>();

            // In the follow line I'm defining which is the property used as Version for all classes inherited from VersionedEntity
            orm.VersionProperty<VersionedEntity>(ve=> ve.Version);

            // In the follow line I'm customizing the column-name for the property used as Version for all classes inherited from VersionedEntity....
            // Note : VersionedEntity is not an entity, it is only a base class.
            mapper.Class<VersionedEntity>(cm => cm.Version(ve => ve.Version, vm => vm.Column("Revision")));

            // In the follow line I'm customizing the column-name for the property used as Version only for the class Provider
            // Note : You can move the follow line before the previous and the result does not change, this is because ConfORM can understand
            // which is a base customization and which is the specific customization.
            mapper.Class<Provider>(cm => cm.Version(ve => ve.Version, vm => vm.Column("IncrementalVersion")));

            // Note : I have to create mappings for the whole domain; Entity and VersionedEntity are excluded from de mapping because out-side
            // root-entities hierarchy (root-entities are : CurrencyDefinition, Company, Customer, Provider)
            var mapping = mapper.CompileMappingFor(typeof(Entity).Assembly.GetTypes().Where(t => t.Namespace == typeof(Entity).Namespace));
            Console.Write(mapping.AsString());
        }

        public void ComposingPatternsAppliersPacks()
        {
            // Thanks to Lorenzo Vegetti to provide the domain of this example.
            // This example refers to a little-domain, interesting from the point of view of mapping with ConfORM.
            // Here you can see how apply general convetion, how and when compose patterns-appliers-packs and patterns-appliers,
            // how ConfORM can apply different mapping depending on the type of enum (see the difference on CostOptions) and so on...
            // You don't have to organize the mapping all in one class, as in this example, and you don't have to use the IModuleMapping...
            // You can organize the mapping as you feel more confortable for your application; in some case a class is enough, in other cases would
            // be better the separation per module/concern, you are not closed in "mapping per class" box.

            var orm = new ObjectRelationalMapper();

            // With the follow line I'm adding the pattern for the POID strategy ("native" instead the default "High-Low")
            orm.Patterns.PoidStrategies.Add(new NativePoidPattern());

            // composition of patterns-appliers-packs and patterns-appliers for Lorenzo's domain
            // Note: for bidirectional-one-to-many association Lorenzo is not interested in the default cascade behavior,
            // implemented in the BidirectionalOneToManyRelationPack, because he is using a sort of soft-delete in his base class VersionModelBase.
            // He can implements a custom pack of patterns-appliers to manage the situation when classes does not inherits from VersionModelBase by the way
            // he don't want the cascade atall, so the BidirectionalOneToManyInverseApplier will be enough
            IPatternsAppliersHolder patternsAppliers =
                (new SafePropertyAccessorPack())
                    .Merge(new OneToOneRelationPack(orm))
                    .Merge(new BidirectionalManyToManyRelationPack(orm))
                    .Merge(new DiscriminatorValueAsClassNamePack(orm))
                    .Merge(new CoolColumnsNamingPack(orm))
                    .Merge(new TablePerClassPack())
                    .Merge(new PluralizedTablesPack(orm, new EnglishInflector()))
                    .Merge(new ListIndexAsPropertyPosColumnNameApplier())
                    .Merge(new BidirectionalOneToManyInverseApplier(orm))
                    .Merge(new EnumAsStringPack())
                    .Merge(new DatePropertyByNameApplier())
                    .Merge(new MsSQL2008DateTimeApplier());

            // Instancing the Mapper using the result of Merge
            var mapper = new Mapper(orm, patternsAppliers);

            // Setting the version property using the base class
            orm.VersionProperty<VersionModelBase>(v => v.Version);

            // Note: I'm declaring the strategy only for the base entity
            orm.TablePerClassHierarchy<Cost>();
            orm.TablePerClass<EditionQuotation>();
            orm.TablePerClass<ProductQuotation>();
            orm.TablePerClass<Quotation>();

            AppliesGeneralConventions(mapper);

            // EditionQuotation.PrintCost don't use lazy-loading
            mapper.Customize<EditionQuotation>(map => map.ManyToOne(eq => eq.PrintCost, m2o => m2o.Lazy(LazyRelation.NoLazy)));

            // Customizes some others DDL's stuff outside conventions
            CustomizeColumns(mapper);

            // Note : I have to create mappings for the whole domain
            HbmMapping mapping =
                mapper.CompileMappingFor(
                    typeof (GenericModelBase<>).Assembly.GetTypes().Where(t => t.Namespace == typeof (GenericModelBase<>).Namespace));
            Console.Write(mapping.AsString());
        }

 private static HbmMapping GetMapping()
 {
     var orm = new ObjectRelationalMapper();
     var mapper = new Mapper(orm,
     new CoolPatternsAppliersHolder(orm));
     orm.TablePerClassHierarchy<Product>();
     orm.TablePerClass<ActorRole>();
     orm.Patterns.PoidStrategies.Add(
     new GuidOptimizedPoidPattern());
     orm.VersionProperty<Entity>(x => x.Version);
     orm.NaturalId<Product>(p => p.Name);
     orm.Cascade<Movie, ActorRole>(
     Cascade.All | Cascade.DeleteOrphans);
     mapper.AddPropertyPattern(mi =>
     mi.GetPropertyOrFieldType() == typeof(Decimal) &&
     mi.Name.Contains("Price"),
     pm => pm.Type(NHibernateUtil.Currency));
     mapper.AddPropertyPattern(mi =>
     orm.IsRootEntity(mi.DeclaringType) &&
     !"Description".Equals(mi.Name),
     pm => pm.NotNullable(true));
     mapper.Subclass<Movie>(cm =>
     cm.List(movie => movie.Actors,
     colm => colm.Index(
     lim => lim.Column("ActorIndex")), m => { }));
     var domainClasses = typeof(Entity).Assembly.GetTypes()
     .Where(t => typeof(Entity).IsAssignableFrom(t));
     return mapper.CompileMappingFor(domainClasses);
 }

        public void WhenExplicitDeclaredThenRecognizeVerion()
        {
            var orm = new ObjectRelationalMapper();
            orm.VersionProperty<MyClass>(myclass => myclass.Version);

            orm.IsVersion(typeof (MyClass).GetProperty("Version")).Should().Be.True();
        }

        public void WhenVersionPropertyDefinedOnInterfaceThenRecognizeItOnConcreteClass()
        {
            var orm = new ObjectRelationalMapper();
            orm.TablePerClass<MyVersionedEntityOnInterface>();
            orm.VersionProperty<IVersionedEntity>(versionedEntity => versionedEntity.Version);

            orm.IsVersion(ForClass<MyVersionedEntityOnInterface>.Property(e => e.Version)).Should().Be.True();
        }

        public void WhenCustomizedInterfaceThenWorkForConcreteImplementations()
        {
            var orm = new ObjectRelationalMapper();

            // Mark the version property using the interface
            orm.VersionProperty<IVersionedEntity>(x => x.Version);
            orm.VersionProperty<ITimeVersionedEntity>(x => x.UpdatedAt);

            var rootEntities = new[] { typeof(MyEntity), typeof(MyOtherEntity) };
            orm.TablePerClass(rootEntities);

            var mapper = new Mapper(orm);

            // customize base entities
            mapper.Class<IVersionedEntity>(cm => cm.Version(x => x.Version, vm => vm.Column("Revision")));

            mapper.Class<ITimeVersionedEntity>(cm => cm.Version(x => x.UpdatedAt, vm =>
            {
                vm.Column(column =>
                {
                    column.Name("LastUpdate");
                    column.NotNullable(true);
                    column.SqlType("timestamp");
                });
                vm.Generated(VersionGeneration.Always);
            }));

            var mappings = mapper.CompileMappingFor(rootEntities);

            HbmClass hbmMyEntity = mappings.RootClasses.Single(hbm => hbm.Name == "MyEntity");
            hbmMyEntity.Version.Should().Not.Be.Null();
            hbmMyEntity.Version.name.Should().Be("Version");
            hbmMyEntity.Version.column1.Should().Be("Revision");

            HbmClass hbmMyOtherEntity = mappings.RootClasses.Single(hbm => hbm.Name == "MyOtherEntity");
            hbmMyOtherEntity.Version.Should().Not.Be.Null();
            hbmMyOtherEntity.Version.name.Should().Be("UpdatedAt");
            hbmMyOtherEntity.Version.Columns.Single().name.Should().Be("LastUpdate");
            hbmMyOtherEntity.Version.generated.Should().Be(HbmVersionGeneration.Always);
        }