• 扩展entity framework core 实现默认字符串长度,decimal精度,entity自动注册和配置


    文章以efcore 2.0.0-preview2.测试验证通过。其他版本不保证使用,但是思路不会差太远。源代码,报道越短,事情越严重!文章越短,内容越精悍!

    目标:
    1.实现entity的自动发现和mapper设置.
    2.默认字符串长度,而不是nvarchar(max).
    3.decimal设置精度

    实现目标1:继承RelationalModelCustomizer,重写Customize方法。

    当然,我们也可以重写dbcontext的OnModelCreating方法,but,我们怎么能这么low呢。必须要用点高级玩意是吧,当然这也是更底层的扩展方式。项目里面有多个dbcontext的话,在这里集中扩展管理比较方便。
    在然后,这个RelationalModelCustomizer继承自ModelCustomizer。在联想到efcore未来的版本会支持redis,nosql什么的。到时候估计还回有一个osqlModelCustomizer之类的吧,期待中......

    实现目标2、3:继承自CoreConventionSetBuilder类,重写CreateConventionSet方法。

    重写CreateConventionSet方法,能拿到关键的ConventionSet对象。这个对象囊括了诸多的约定配置等等。比如maxlengthattribute属性标记,stringlength属性标记,timestamp属性标记,表id的自动发现规则等等等。。。
    那,我们增加2个小小的约定:字符串默认长度(StringDefaultLengthConvention),和decimal精度设置attribute(DecimalPrecisionAttributeConvention)及fluntapi方式.

    文章的最后附efcore 所有的可替换扩展service。

    //servie,DI注入替换.
    services.AddSingleton<IModelCustomizer, MyRelationalModelCustomizer>();
    services.AddSingleton<ICoreConventionSetBuilder, MyCoreConventionSetBuilder>();
    
    //实现entity的自动发现和mapper设置
    public class MyRelationalModelCustomizer : RelationalModelCustomizer
    {
        public MyRelationalModelCustomizer(ModelCustomizerDependencies dependencies)
            : base(dependencies){}
    
        public override void Customize(ModelBuilder modelBuilder, DbContext dbContext)
        {
            base.Customize(modelBuilder, dbContext);
            var sp = (IInfrastructure<IServiceProvider>)dbContext;
            var dbOptions = sp.Instance.GetServices<DbContextOptions>();
            foreach (var item in dbOptions)
            {
                if (item.ContextType == dbContext.GetType())
                    ConfigureDbContextEntityService.Configure(modelBuilder, item, dbContext);
            }
        }
    }
    
    public class MyCoreConventionSetBuilder : CoreConventionSetBuilder
    {
        public MyCoreConventionSetBuilder(CoreConventionSetBuilderDependencies dependencies) : base(dependencies){}
        public override ConventionSet CreateConventionSet()
        {
            var conventionSet = base.CreateConventionSet();
            //默认字符串长度,而不是nvarchar(max).
            //为什么要insert(0,obj),则是因为这个默认规则要最优先处理,如果后续有规则的话就直接覆盖了。
            //propertyBuilder.HasMaxLength(32, ConfigurationSource.Convention);
            //理论上我指定了规则的级别为.Convention,应该和顺序就没有关系了。but,还没有完成测试,所以我也不知道
            conventionSet.PropertyAddedConventions.Insert(0, new StringDefaultLengthConvention());
            //decimal设置精度
            conventionSet.PropertyAddedConventions.Add(new DecimalPrecisionAttributeConvention());
            return conventionSet;
        }
    }
    

    下面是StringDefaultLengthConvention和DecimalPrecisionAttributeConvention的实现代码

    //字符串默认长度
    public class StringDefaultLengthConvention : IPropertyAddedConvention
    {
        public InternalPropertyBuilder Apply(InternalPropertyBuilder propertyBuilder)
        {
            if (propertyBuilder.Metadata.ClrType == typeof(string))
                propertyBuilder.HasMaxLength(32, ConfigurationSource.Convention);
            return propertyBuilder;
        }
    }
    //attribute方式设置decimal精度
    public class DecimalPrecisionAttributeConvention : PropertyAttributeConvention<DecimalPrecisionAttribute>
    {
        public override InternalPropertyBuilder Apply(InternalPropertyBuilder propertyBuilder, DecimalPrecisionAttribute attribute, MemberInfo clrMember)
        {
            if (propertyBuilder.Metadata.ClrType == typeof(decimal))
                propertyBuilder.HasPrecision(attribute.Precision, attribute.Scale);
            return propertyBuilder;
        }
    
    /// <summary>
    /// decimal类型设置精度
    /// </summary>
    /// <param name="propertyBuilder"></param>
    /// <param name="precision">精度</param>
    /// <param name="scale">小数位数</param>
    public static PropertyBuilder<TProperty> HasPrecision<TProperty>(this PropertyBuilder<TProperty> propertyBuilder, int precision = 18, int scale = 4)
    {
        //fluntapi方式设置精度  
        ((IInfrastructure<InternalPropertyBuilder>)propertyBuilder).Instance.HasPrecision(precision, scale);
    
        return propertyBuilder;
    }
    
    public static InternalPropertyBuilder HasPrecision(this InternalPropertyBuilder propertyBuilder, int precision, int scale)
    {
        propertyBuilder.Relational(ConfigurationSource.Explicit).HasColumnType($"decimal({precision},{scale})");
    
        return propertyBuilder;
    }
    
    

    以上就是实现的代码,就这么几行。嗯,还是挺简单的.

    --------------

    以下,则是efcore的源代码。展示了如此之多的可扩展。随着DI的运用和微软的开放,嗯。用烂啦,用炸拉(_)

    //各种规则和约定
    public virtual ConventionSet AddConventions(ConventionSet conventionSet)
    {
        ValueGeneratorConvention valueGeneratorConvention = new RelationalValueGeneratorConvention();
    
        ReplaceConvention(conventionSet.BaseEntityTypeChangedConventions, valueGeneratorConvention);
        ReplaceConvention(conventionSet.PrimaryKeyChangedConventions, valueGeneratorConvention);
        ReplaceConvention(conventionSet.ForeignKeyAddedConventions, valueGeneratorConvention);
        ReplaceConvention(conventionSet.ForeignKeyRemovedConventions, valueGeneratorConvention);
    
        var relationalColumnAttributeConvention = new RelationalColumnAttributeConvention();
    
        conventionSet.PropertyAddedConventions.Add(relationalColumnAttributeConvention);
    
        var sharedTableConvention = new SharedTableConvention();
    
        conventionSet.EntityTypeAddedConventions.Add(new RelationalTableAttributeConvention());
        conventionSet.EntityTypeAddedConventions.Add(sharedTableConvention);
        conventionSet.BaseEntityTypeChangedConventions.Add(new DiscriminatorConvention());
        conventionSet.BaseEntityTypeChangedConventions.Add(
            new TableNameFromDbSetConvention(Dependencies.Context?.Context, Dependencies.SetFinder));
        conventionSet.EntityTypeAnnotationChangedConventions.Add(sharedTableConvention);
        conventionSet.PropertyFieldChangedConventions.Add(relationalColumnAttributeConvention);
        conventionSet.PropertyAnnotationChangedConventions.Add((RelationalValueGeneratorConvention)valueGeneratorConvention);
        conventionSet.ForeignKeyUniquenessChangedConventions.Add(sharedTableConvention);
        conventionSet.ForeignKeyOwnershipChangedConventions.Add(sharedTableConvention);
    
        conventionSet.ModelBuiltConventions.Add(new RelationalTypeMappingConvention(Dependencies.TypeMapper));
        conventionSet.ModelBuiltConventions.Add(sharedTableConvention);
    
        conventionSet.ModelAnnotationChangedConventions.Add(new RelationalDbFunctionConvention());
    
        return conventionSet;
    }
    
    
    //还是各种规则和约定
    public virtual ConventionSet CreateConventionSet()
    {
        var conventionSet = new ConventionSet();
    
        var propertyDiscoveryConvention = new PropertyDiscoveryConvention(Dependencies.TypeMapper);
        var keyDiscoveryConvention = new KeyDiscoveryConvention();
        var inversePropertyAttributeConvention = new InversePropertyAttributeConvention(Dependencies.TypeMapper);
        var relationshipDiscoveryConvention = new RelationshipDiscoveryConvention(Dependencies.TypeMapper);
    
        conventionSet.EntityTypeAddedConventions.Add(new NotMappedEntityTypeAttributeConvention());
        conventionSet.EntityTypeAddedConventions.Add(new NotMappedMemberAttributeConvention());
        conventionSet.EntityTypeAddedConventions.Add(new BaseTypeDiscoveryConvention());
        conventionSet.EntityTypeAddedConventions.Add(propertyDiscoveryConvention);
        conventionSet.EntityTypeAddedConventions.Add(keyDiscoveryConvention);
        conventionSet.EntityTypeAddedConventions.Add(inversePropertyAttributeConvention);
        conventionSet.EntityTypeAddedConventions.Add(relationshipDiscoveryConvention);
        conventionSet.EntityTypeAddedConventions.Add(new DerivedTypeDiscoveryConvention());
        conventionSet.EntityTypeIgnoredConventions.Add(inversePropertyAttributeConvention);
    
        var foreignKeyIndexConvention = new ForeignKeyIndexConvention();
        var valueGeneratorConvention = new ValueGeneratorConvention();
    
        conventionSet.BaseEntityTypeChangedConventions.Add(propertyDiscoveryConvention);
        conventionSet.BaseEntityTypeChangedConventions.Add(keyDiscoveryConvention);
        conventionSet.BaseEntityTypeChangedConventions.Add(inversePropertyAttributeConvention);
        conventionSet.BaseEntityTypeChangedConventions.Add(relationshipDiscoveryConvention);
        conventionSet.BaseEntityTypeChangedConventions.Add(foreignKeyIndexConvention);
        conventionSet.BaseEntityTypeChangedConventions.Add(valueGeneratorConvention );
    
        // An ambiguity might have been resolved
        conventionSet.EntityTypeMemberIgnoredConventions.Add(inversePropertyAttributeConvention);
        conventionSet.EntityTypeMemberIgnoredConventions.Add(relationshipDiscoveryConvention);
    
        var keyAttributeConvention = new KeyAttributeConvention();
        var foreignKeyPropertyDiscoveryConvention = new ForeignKeyPropertyDiscoveryConvention();
        var backingFieldConvention = new BackingFieldConvention();
        var concurrencyCheckAttributeConvention = new ConcurrencyCheckAttributeConvention();
        var databaseGeneratedAttributeConvention = new DatabaseGeneratedAttributeConvention();
        var requiredPropertyAttributeConvention = new RequiredPropertyAttributeConvention();
        var maxLengthAttributeConvention = new MaxLengthAttributeConvention();
        var stringLengthAttributeConvention = new StringLengthAttributeConvention();
        var timestampAttributeConvention = new TimestampAttributeConvention();
    
        conventionSet.PropertyAddedConventions.Add(backingFieldConvention);
        conventionSet.PropertyAddedConventions.Add(concurrencyCheckAttributeConvention);
        conventionSet.PropertyAddedConventions.Add(databaseGeneratedAttributeConvention);
        conventionSet.PropertyAddedConventions.Add(requiredPropertyAttributeConvention);
        conventionSet.PropertyAddedConventions.Add(maxLengthAttributeConvention);
        conventionSet.PropertyAddedConventions.Add(stringLengthAttributeConvention);
        conventionSet.PropertyAddedConventions.Add(timestampAttributeConvention);
        conventionSet.PropertyAddedConventions.Add(keyDiscoveryConvention);
        conventionSet.PropertyAddedConventions.Add(foreignKeyPropertyDiscoveryConvention);
        conventionSet.PropertyAddedConventions.Add(keyAttributeConvention);
    
        conventionSet.PrimaryKeyChangedConventions.Add(valueGeneratorConvention);
    
        conventionSet.KeyAddedConventions.Add(foreignKeyPropertyDiscoveryConvention);
        conventionSet.KeyAddedConventions.Add(foreignKeyIndexConvention);
    
        conventionSet.KeyRemovedConventions.Add(foreignKeyPropertyDiscoveryConvention);
        conventionSet.KeyRemovedConventions.Add(foreignKeyIndexConvention);
        conventionSet.KeyRemovedConventions.Add(keyDiscoveryConvention);
    
        var cascadeDeleteConvention = new CascadeDeleteConvention();
    
        conventionSet.ForeignKeyAddedConventions.Add(new ForeignKeyAttributeConvention(Dependencies.TypeMapper));
        conventionSet.ForeignKeyAddedConventions.Add(foreignKeyPropertyDiscoveryConvention);
        conventionSet.ForeignKeyAddedConventions.Add(keyDiscoveryConvention);
        conventionSet.ForeignKeyAddedConventions.Add(valueGeneratorConvention );
        conventionSet.ForeignKeyAddedConventions.Add(cascadeDeleteConvention);
        conventionSet.ForeignKeyAddedConventions.Add(foreignKeyIndexConvention);
    
        conventionSet.ForeignKeyRemovedConventions.Add(keyDiscoveryConvention);
        conventionSet.ForeignKeyRemovedConventions.Add(valueGeneratorConvention );
        conventionSet.ForeignKeyRemovedConventions.Add(foreignKeyIndexConvention);
    
        conventionSet.ForeignKeyUniquenessChangedConventions.Add(foreignKeyPropertyDiscoveryConvention);
        conventionSet.ForeignKeyUniquenessChangedConventions.Add(foreignKeyIndexConvention);
    
        conventionSet.ForeignKeyOwnershipChangedConventions.Add(new NavigationEagerLoadingConvention());
    
        conventionSet.ModelBuiltConventions.Add(new ModelCleanupConvention());
        conventionSet.ModelBuiltConventions.Add(keyAttributeConvention);
        conventionSet.ModelBuiltConventions.Add(new IgnoredMembersValidationConvention());
        conventionSet.ModelBuiltConventions.Add(new PropertyMappingValidationConvention(Dependencies.TypeMapper));
        conventionSet.ModelBuiltConventions.Add(new RelationshipValidationConvention());
        conventionSet.ModelBuiltConventions.Add(foreignKeyPropertyDiscoveryConvention);
    
        conventionSet.NavigationAddedConventions.Add(backingFieldConvention);
        conventionSet.NavigationAddedConventions.Add(new RequiredNavigationAttributeConvention());
        conventionSet.NavigationAddedConventions.Add(inversePropertyAttributeConvention);
        conventionSet.NavigationAddedConventions.Add(foreignKeyPropertyDiscoveryConvention);
        conventionSet.NavigationAddedConventions.Add(relationshipDiscoveryConvention);
    
        conventionSet.NavigationRemovedConventions.Add(relationshipDiscoveryConvention);
    
        conventionSet.IndexAddedConventions.Add(foreignKeyIndexConvention);
    
        conventionSet.IndexRemovedConventions.Add(foreignKeyIndexConvention);
    
        conventionSet.IndexUniquenessChangedConventions.Add(foreignKeyIndexConvention);
    
        conventionSet.PropertyNullabilityChangedConventions.Add(cascadeDeleteConvention);
    
        conventionSet.PrincipalEndChangedConventions.Add(foreignKeyPropertyDiscoveryConvention);
    
        conventionSet.PropertyFieldChangedConventions.Add(keyDiscoveryConvention);
        conventionSet.PropertyFieldChangedConventions.Add(foreignKeyPropertyDiscoveryConvention);
        conventionSet.PropertyFieldChangedConventions.Add(keyAttributeConvention);
        conventionSet.PropertyFieldChangedConventions.Add(concurrencyCheckAttributeConvention);
        conventionSet.PropertyFieldChangedConventions.Add(databaseGeneratedAttributeConvention);
        conventionSet.PropertyFieldChangedConventions.Add(requiredPropertyAttributeConvention);
        conventionSet.PropertyFieldChangedConventions.Add(maxLengthAttributeConvention);
        conventionSet.PropertyFieldChangedConventions.Add(stringLengthAttributeConvention);
        conventionSet.PropertyFieldChangedConventions.Add(timestampAttributeConvention);
        
        return conventionSet;
    }
    
    

    我就是所有的可替换service啦。不要眼花有点多!,找着合适的用起来!

    serviceCollection.AsQueryable()
        .Where(p => p.ServiceType.ToString().StartsWith("Microsoft.EntityFrameworkCore"))
        .Each(sd =>
    {
        Console.WriteLine($"{sd.Lifetime.ToString().PadRight(15, ' ')}{sd.ServiceType.FullName}");
    });
    
    //output 
    //Singleton Microsoft.EntityFrameworkCore.Storage.IDatabaseProvider
    //Singleton Microsoft.EntityFrameworkCore.ValueGeneration.IValueGeneratorCache
    //Singleton      Microsoft.EntityFrameworkCore.Storage.IRelationalTypeMapper
    //Singleton      Microsoft.EntityFrameworkCore.Storage.ISqlGenerationHelper
    //Singleton      Microsoft.EntityFrameworkCore.Migrations.IMigrationsAnnotationProvider
    //Singleton      Microsoft.EntityFrameworkCore.Storage.IRelationalValueBufferFactoryFactory
    //Singleton      Microsoft.EntityFrameworkCore.Infrastructure.IModelValidator
    //Scoped         Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.IConventionSetBuilder
    //Singleton      Microsoft.EntityFrameworkCore.Update.IUpdateSqlGenerator
    //Scoped         Microsoft.EntityFrameworkCore.Update.IModificationCommandBatchFactory
    //Scoped         Microsoft.EntityFrameworkCore.ValueGeneration.IValueGeneratorSelector
    //Scoped         Microsoft.EntityFrameworkCore.Storage.IRelationalConnection
    //Singleton      Microsoft.EntityFrameworkCore.Migrations.IMigrationsSqlGenerator
    //Scoped         Microsoft.EntityFrameworkCore.Storage.IRelationalDatabaseCreator
    //Scoped         Microsoft.EntityFrameworkCore.Migrations.IHistoryRepository
    //Scoped         Microsoft.EntityFrameworkCore.Query.ICompiledQueryCacheKeyGenerator
    //Scoped         Microsoft.EntityFrameworkCore.Storage.IExecutionStrategyFactory
    //Scoped         Microsoft.EntityFrameworkCore.Query.IQueryCompilationContextFactory
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionTranslators.IMemberTranslator
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionTranslators.ICompositeMethodCallTranslator
    //Singleton      Microsoft.EntityFrameworkCore.Query.Sql.IQuerySqlGeneratorFactory
    //Singleton      Microsoft.EntityFrameworkCore.Infrastructure.ISingletonOptions
    //Singleton      Microsoft.EntityFrameworkCore.ValueGeneration.Internal.ISqlServerValueGeneratorCache
    //Singleton      Microsoft.EntityFrameworkCore.Infrastructure.Internal.ISqlServerOptions
    //Scoped         Microsoft.EntityFrameworkCore.Update.Internal.ISqlServerUpdateSqlGenerator
    //Scoped         Microsoft.EntityFrameworkCore.ValueGeneration.Internal.ISqlServerSequenceValueGeneratorFactory
    //Scoped         Microsoft.EntityFrameworkCore.Storage.Internal.ISqlServerConnection
    //Singleton      Microsoft.EntityFrameworkCore.Storage.IParameterNameGeneratorFactory
    //Singleton      Microsoft.EntityFrameworkCore.Migrations.IMigrationsIdGenerator
    //Singleton      Microsoft.EntityFrameworkCore.Update.Internal.IKeyValueIndexFactorySource
    //Singleton      Microsoft.EntityFrameworkCore.Infrastructure.IModelSource
    //Singleton      Microsoft.EntityFrameworkCore.Infrastructure.IModelCustomizer
    //Scoped         Microsoft.EntityFrameworkCore.Migrations.IMigrator
    //Singleton      Microsoft.EntityFrameworkCore.Migrations.IMigrationCommandExecutor
    //Scoped         Microsoft.EntityFrameworkCore.Migrations.IMigrationsAssembly
    //Scoped         Microsoft.EntityFrameworkCore.Storage.IDatabase
    //Scoped         Microsoft.EntityFrameworkCore.Update.IBatchExecutor
    //Singleton      Microsoft.EntityFrameworkCore.Storage.IRelationalCommandBuilderFactory
    //Singleton      Microsoft.EntityFrameworkCore.Storage.IRawSqlCommandBuilder
    //Scoped         Microsoft.EntityFrameworkCore.Update.ICommandBatchPreparer
    //Singleton      Microsoft.EntityFrameworkCore.Migrations.IMigrationsModelDiffer
    //Singleton      Microsoft.EntityFrameworkCore.Storage.ITypeMapper
    //Scoped         Microsoft.EntityFrameworkCore.Storage.IDatabaseCreator
    //Scoped         Microsoft.EntityFrameworkCore.Storage.IDbContextTransactionManager
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.Internal.IMaterializerFactory
    //Singleton      Microsoft.EntityFrameworkCore.Query.Internal.IShaperCommandContextFactory
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.Internal.IConditionalRemovingExpressionVisitorFactory
    //Scoped         Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.Internal.ICompositePredicateExpressionVisitorFactory
    //Singleton      Microsoft.EntityFrameworkCore.Query.Expressions.ISelectExpressionFactory
    //Scoped         Microsoft.EntityFrameworkCore.Query.Internal.IExpressionPrinter
    //Scoped         Microsoft.EntityFrameworkCore.Query.IRelationalResultOperatorHandler
    //Scoped         Microsoft.EntityFrameworkCore.Query.IQueryContextFactory
    //Scoped         Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.IEntityQueryableExpressionVisitorFactory
    //Scoped         Microsoft.EntityFrameworkCore.Query.IEntityQueryModelVisitorFactory
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.IProjectionExpressionVisitorFactory
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionTranslators.IExpressionFragmentTranslator
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.ISqlTranslatingExpressionVisitorFactory
    //Scoped         Microsoft.EntityFrameworkCore.Storage.Internal.INamedConnectionStringResolver
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionTranslators.RelationalCompositeMemberTranslatorDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Storage.RelationalSqlGenerationHelperDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapperDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionTranslators.RelationalCompositeExpressionFragmentTranslatorDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Infrastructure.RelationalModelValidatorDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Update.UpdateSqlGeneratorDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Query.Sql.QuerySqlGeneratorDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionTranslators.RelationalCompositeMethodCallTranslatorDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Migrations.MigrationsSqlGeneratorDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Migrations.MigrationsAnnotationProviderDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.SqlTranslatingExpressionVisitorDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Storage.ParameterNameGeneratorDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Query.Expressions.SelectExpressionDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Storage.RelationalValueBufferFactoryDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.RelationalProjectionExpressionVisitorDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.RelationalConventionSetBuilderDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Storage.RelationalDatabaseCreatorDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Migrations.HistoryRepositoryDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Query.RelationalCompiledQueryCacheKeyGeneratorDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Query.RelationalQueryModelVisitorDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.RelationalEntityQueryableExpressionVisitorDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Storage.RelationalConnectionDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Storage.RelationalDatabaseDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Query.RelationalQueryCompilationContextDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Internal.IDbSetFinder
    //Singleton      Microsoft.EntityFrameworkCore.Internal.IDbSetInitializer
    //Singleton      Microsoft.EntityFrameworkCore.Internal.IDbSetSource
    //Singleton      Microsoft.EntityFrameworkCore.Internal.IEntityFinderSource
    //Singleton      Microsoft.EntityFrameworkCore.Metadata.Internal.IEntityMaterializerSource
    //Singleton      Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ICoreConventionSetBuilder
    //Singleton      Microsoft.EntityFrameworkCore.Infrastructure.IModelCacheKeyFactory
    //Singleton      Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IInternalEntityEntryFactory
    //Singleton      Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IInternalEntityEntrySubscriber
    //Singleton      Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IEntityEntryGraphIterator
    //Singleton      Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IEntityGraphAttacher
    //Singleton      Microsoft.EntityFrameworkCore.Query.Internal.INodeTypeProviderFactory
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IKeyPropagator
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.INavigationFixer
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.ILocalViewListener
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IStateManager
    //Scoped         Microsoft.EntityFrameworkCore.Internal.IConcurrencyDetector
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IInternalEntityEntryNotifier
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IValueGenerationManager
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IChangeTrackerFactory
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IChangeDetector
    //Scoped         Microsoft.EntityFrameworkCore.Internal.IDbContextServices
    //Scoped         Microsoft.EntityFrameworkCore.Internal.IDbContextDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Query.Internal.ICompiledQueryCache
    //Scoped         Microsoft.EntityFrameworkCore.Query.Internal.IAsyncQueryProvider
    //Scoped         Microsoft.EntityFrameworkCore.Query.Internal.IQueryCompiler
    //Singleton      Microsoft.EntityFrameworkCore.Query.Internal.IQueryAnnotationExtractor
    //Scoped         Microsoft.EntityFrameworkCore.Query.Internal.IQueryOptimizer
    //Singleton      Microsoft.EntityFrameworkCore.Query.Internal.IEntityTrackingInfoFactory
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.Internal.ITaskBlockingExpressionVisitor
    //Scoped         Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.Internal.IEntityResultFindingExpressionVisitorFactory
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.Internal.IMemberAccessBindingExpressionVisitorFactory
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.Internal.INavigationRewritingExpressionVisitorFactory
    //Singleton      Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.Internal.IQuerySourceTracingExpressionVisitorFactory
    //Scoped         Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.Internal.IRequiresMaterializationExpressionVisitorFactory
    //Scoped         Microsoft.EntityFrameworkCore.Query.IResultOperatorHandler
    //Singleton      Microsoft.EntityFrameworkCore.Internal.ISingletonOptionsInitialzer
    //Singleton      Microsoft.EntityFrameworkCore.Diagnostics.IDiagnosticsLogger`1
    //Singleton Microsoft.EntityFrameworkCore.Diagnostics.ILoggingOptions
    //Singleton      Microsoft.EntityFrameworkCore.Infrastructure.ISingletonOptions
    //Scoped         Microsoft.EntityFrameworkCore.Metadata.IModel
    //Scoped         Microsoft.EntityFrameworkCore.Internal.ICurrentDbContext
    //Scoped         Microsoft.EntityFrameworkCore.Infrastructure.IDbContextOptions
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IEntityStateListener
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.INavigationListener
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IKeyListener
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IQueryTrackingListener
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IPropertyListener
    //Scoped         Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IEntityStateListener
    //Scoped         Microsoft.EntityFrameworkCore.Infrastructure.IResettableService
    //Scoped         Microsoft.EntityFrameworkCore.Infrastructure.IResettableService
    //Singleton      Microsoft.EntityFrameworkCore.Storage.DatabaseProviderDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Query.ResultOperatorHandlerDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Infrastructure.ModelSourceDependencies
    //Singleton      Microsoft.EntityFrameworkCore.ValueGeneration.ValueGeneratorCacheDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Infrastructure.ModelValidatorDependencies
    //Singleton      Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.CoreConventionSetBuilderDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Storage.ExecutionStrategyDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Query.CompiledQueryCacheKeyGeneratorDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Query.QueryContextDependencies
    //Scoped         Microsoft.EntityFrameworkCore.ValueGeneration.ValueGeneratorSelectorDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Query.EntityQueryModelVisitorDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Storage.DatabaseDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Infrastructure.ModelCustomizerDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Infrastructure.ModelCacheKeyFactoryDependencies
    //Scoped         Microsoft.EntityFrameworkCore.Query.Internal.QueryCompilationContextDependencies
    //Singleton      Microsoft.EntityFrameworkCore.DbContextOptions<Aquirrel.EntityFramework.Test.TestDbContext>
    //Singleton Microsoft.EntityFrameworkCore.DbContextOptions
    //Singleton Microsoft.EntityFrameworkCore.Infrastructure.IModelCustomizer
    //Singleton      Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ICoreConventionSetBuilder
    
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  • 原文地址:https://www.cnblogs.com/calvinK/p/7234872.html
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