shaperfactory.cs source code in C# .NET

                        Code:
                         / Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataEntity / System / Data / Common / internal / materialization / shaperfactory.cs / 3 / shaperfactory.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
// [....]
//----------------------------------------------------------------------------- 
 
using System.Data.Common.QueryCache;
using System.Data.Metadata.Edm; 
using System.Data.Objects;
using System.Data.Objects.Internal;
using System.Data.Query.InternalTrees;
using System.Diagnostics; 

namespace System.Data.Common.Internal.Materialization 
{ 
    /// 
    /// An immutable type used to generate Shaper instances. 
    /// 
    internal abstract class ShaperFactory
    {
        internal static ShaperFactory Create(Type elementType, QueryCacheManager cacheManager, ColumnMap columnMap, MetadataWorkspace metadata, SpanIndex spanInfo, MergeOption mergeOption, bool valueLayer) 
        {
            ShaperFactoryCreator creator = (ShaperFactoryCreator)Activator.CreateInstance(typeof(TypedShaperFactoryCreator<>).MakeGenericType(elementType)); 
            return creator.TypedCreate(cacheManager, columnMap, metadata, spanInfo, mergeOption, valueLayer); 
        }
 
        private abstract class ShaperFactoryCreator
        {
            internal abstract ShaperFactory TypedCreate(QueryCacheManager cacheManager, ColumnMap columnMap, MetadataWorkspace metadata, SpanIndex spanInfo, MergeOption mergeOption, bool valueLayer);
        } 

        private sealed class TypedShaperFactoryCreator : ShaperFactoryCreator 
        { 
            public TypedShaperFactoryCreator() {}
            internal override ShaperFactory TypedCreate(QueryCacheManager cacheManager, ColumnMap columnMap, MetadataWorkspace metadata, SpanIndex spanInfo, MergeOption mergeOption, bool valueLayer) 
            {
                return Translator.TranslateColumnMap(cacheManager, columnMap, metadata, spanInfo, mergeOption, valueLayer);
            }
        } 
    }
 
    ///  
    /// Typed ShaperFactory
    ///  
    internal class ShaperFactory : ShaperFactory
    {
        private readonly int _stateCount;
        private readonly CoordinatorFactory _rootCoordinatorFactory; 
        private readonly Action _checkPermissions;
        private readonly MergeOption _mergeOption; 
 
        internal ShaperFactory(int stateCount, CoordinatorFactory rootCoordinatorFactory, Action checkPermissions, MergeOption mergeOption)
        { 
            _stateCount = stateCount;
            _rootCoordinatorFactory = rootCoordinatorFactory;
            _checkPermissions = checkPermissions;
            _mergeOption = mergeOption; 
        }
 
        ///  
        /// Factory method to create the Shaper for Object Layer queries.
        ///  
        internal Shaper Create(DbDataReader reader, ObjectContext context, MetadataWorkspace workspace, MergeOption mergeOption)
        {
            Debug.Assert(mergeOption == _mergeOption, "executing a query with a different mergeOption than was used to compile the delegate");
            return new Shaper(reader, context, workspace, mergeOption, _stateCount, _rootCoordinatorFactory, _checkPermissions); 
        }
 
        ///  
        /// Factory method to create the Shaper for Value Layer queries.
        ///  
        internal Shaper Create(DbDataReader reader, MetadataWorkspace workspace)
        {
            Debug.Assert(MergeOption.NoTracking == _mergeOption, "executing a query with a different mergeOption than was used to compile the delegate");
            return new Shaper(reader, null, workspace, MergeOption.NoTracking, _stateCount, _rootCoordinatorFactory, _checkPermissions); 
        }
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
// [....]
//----------------------------------------------------------------------------- 
 
using System.Data.Common.QueryCache;
using System.Data.Metadata.Edm; 
using System.Data.Objects;
using System.Data.Objects.Internal;
using System.Data.Query.InternalTrees;
using System.Diagnostics; 

namespace System.Data.Common.Internal.Materialization 
{ 
    /// 
    /// An immutable type used to generate Shaper instances. 
    /// 
    internal abstract class ShaperFactory
    {
        internal static ShaperFactory Create(Type elementType, QueryCacheManager cacheManager, ColumnMap columnMap, MetadataWorkspace metadata, SpanIndex spanInfo, MergeOption mergeOption, bool valueLayer) 
        {
            ShaperFactoryCreator creator = (ShaperFactoryCreator)Activator.CreateInstance(typeof(TypedShaperFactoryCreator<>).MakeGenericType(elementType)); 
            return creator.TypedCreate(cacheManager, columnMap, metadata, spanInfo, mergeOption, valueLayer); 
        }
 
        private abstract class ShaperFactoryCreator
        {
            internal abstract ShaperFactory TypedCreate(QueryCacheManager cacheManager, ColumnMap columnMap, MetadataWorkspace metadata, SpanIndex spanInfo, MergeOption mergeOption, bool valueLayer);
        } 

        private sealed class TypedShaperFactoryCreator : ShaperFactoryCreator 
        { 
            public TypedShaperFactoryCreator() {}
            internal override ShaperFactory TypedCreate(QueryCacheManager cacheManager, ColumnMap columnMap, MetadataWorkspace metadata, SpanIndex spanInfo, MergeOption mergeOption, bool valueLayer) 
            {
                return Translator.TranslateColumnMap(cacheManager, columnMap, metadata, spanInfo, mergeOption, valueLayer);
            }
        } 
    }
 
    ///  
    /// Typed ShaperFactory
    ///  
    internal class ShaperFactory : ShaperFactory
    {
        private readonly int _stateCount;
        private readonly CoordinatorFactory _rootCoordinatorFactory; 
        private readonly Action _checkPermissions;
        private readonly MergeOption _mergeOption; 
 
        internal ShaperFactory(int stateCount, CoordinatorFactory rootCoordinatorFactory, Action checkPermissions, MergeOption mergeOption)
        { 
            _stateCount = stateCount;
            _rootCoordinatorFactory = rootCoordinatorFactory;
            _checkPermissions = checkPermissions;
            _mergeOption = mergeOption; 
        }
 
        ///  
        /// Factory method to create the Shaper for Object Layer queries.
        ///  
        internal Shaper Create(DbDataReader reader, ObjectContext context, MetadataWorkspace workspace, MergeOption mergeOption)
        {
            Debug.Assert(mergeOption == _mergeOption, "executing a query with a different mergeOption than was used to compile the delegate");
            return new Shaper(reader, context, workspace, mergeOption, _stateCount, _rootCoordinatorFactory, _checkPermissions); 
        }
 
        ///  
        /// Factory method to create the Shaper for Value Layer queries.
        ///  
        internal Shaper Create(DbDataReader reader, MetadataWorkspace workspace)
        {
            Debug.Assert(MergeOption.NoTracking == _mergeOption, "executing a query with a different mergeOption than was used to compile the delegate");
            return new Shaper(reader, null, workspace, MergeOption.NoTracking, _stateCount, _rootCoordinatorFactory, _checkPermissions); 
        }
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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