StorageEntitySetMapping.cs source code in C# .NET

                        Code:
                         / Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / ndp / fx / src / DataEntity / System / Data / Mapping / StorageEntitySetMapping.cs / 2 / StorageEntitySetMapping.cs
                        
                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner [....],[....]
//--------------------------------------------------------------------- 
 
using System;
using System.Collections.Generic; 
using System.Collections.ObjectModel;
using System.Text;
using System.Data.Metadata.Edm;
using System.Diagnostics; 

namespace System.Data.Mapping { 
    ///  
    /// Represents the Mapping metadata for an EnitytSet in CS space.
    ///  
    /// 
    /// For Example if conceptually you could represent the CS MSL file as following
    /// --Mapping
    ///   --EntityContainerMapping ( CNorthwind-->SNorthwind ) 
    ///     --EntitySetMapping
    ///       --EntityTypeMapping 
    ///         --TableMappingFragment 
    ///       --EntityTypeMapping
    ///         --TableMappingFragment 
    ///     --AssociationSetMapping
    ///       --AssociationTypeMapping
    ///         --TableMappingFragment
    ///   --EntityContainerMapping ( CMyDatabase-->SMyDatabase ) 
    ///     --CompositionSetMapping
    ///       --CompositionTypeMapping 
    /// This class represents the metadata for the EntitySetMapping elements in the 
    /// above example. And it is possible to access the EntityTypeMaps underneath it.
    ///  
    internal class StorageEntitySetMapping : StorageSetMapping {
        #region Constructors
        /// 
        /// Construct a EntitySet mapping object 
        /// 
        /// EntitySet metadata object 
        /// The entity Container Mapping that contains this Set mapping 
        internal StorageEntitySetMapping(EntitySet extent, StorageEntityContainerMapping entityContainerMapping)
            : base(extent, entityContainerMapping) { 
            m_functionMappings = new List();
            m_implicitlyMappedAssociationSetEnds = new List();
        }
        #endregion 

        #region Fields 
        private readonly List m_functionMappings; 
        private readonly List m_implicitlyMappedAssociationSetEnds;
        #endregion 

        #region Properties
        /// 
        /// Gets all function mappings for this entity set. 
        /// 
        internal IList FunctionMappings { 
            get { return m_functionMappings.AsReadOnly(); } 
        }
 
        /// 
        /// Gets all association sets that are implicitly "covered" through function mappings.
        /// 
        internal IList ImplicitlyMappedAssociationSetEnds { 
            get { return m_implicitlyMappedAssociationSetEnds.AsReadOnly(); }
        } 
 

        ///  
        /// Whether the EntitySetMapping has empty content
        /// Returns true if there are no Function Maps and no table Mapping fragments
        /// 
        internal override bool HasNoContent { 
            get {
                if (m_functionMappings.Count != 0) { 
                    return false; 
                }
                return base.HasNoContent; 
            }
        }
        #endregion
 
        #region Methods
        ///  
        /// This method is primarily for debugging purposes. 
        /// Will be removed shortly.
        ///  
        internal override void Print(int index) {
            StorageEntityContainerMapping.GetPrettyPrintString(ref index);
            StringBuilder sb = new StringBuilder();
            sb.Append("EntitySetMapping"); 
            sb.Append("   ");
            sb.Append("Name:"); 
            sb.Append(this.Set.Name); 
            if (this.QueryView != null)
            { 
                sb.Append("   ");
                sb.Append("Query View:");
                sb.Append(this.QueryView);
            } 
            Console.WriteLine(sb.ToString());
            foreach (StorageTypeMapping typeMapping in TypeMappings) { 
                typeMapping.Print(index+5); 
            }
            foreach (StorageEntityTypeFunctionMapping functionMappping in m_functionMappings) 
            {
                functionMappping.Print(index + 10);
            }
        } 

        ///  
        /// Requires: 
        /// - Function mapping refers to a sub-type of this entity set's element type
        /// - Function mappings for types are not redundantly specified 
        /// Adds a new function mapping for this class.
        /// 
        /// Function mapping to add. May not be null.
        internal void AddFunctionMapping(StorageEntityTypeFunctionMapping functionMapping) { 
            AssertFunctionMappingInvariants(functionMapping);
 
            m_functionMappings.Add(functionMapping); 

            // check if any association sets are indirectly mapped within this function mapping 
            // through association navigation bindings
            functionMapping.DeleteFunctionMapping.AddReferencedAssociationSetEnds((EntitySet)this.Set, m_implicitlyMappedAssociationSetEnds);
            functionMapping.InsertFunctionMapping.AddReferencedAssociationSetEnds((EntitySet)this.Set, m_implicitlyMappedAssociationSetEnds);
            functionMapping.UpdateFunctionMapping.AddReferencedAssociationSetEnds((EntitySet)this.Set, m_implicitlyMappedAssociationSetEnds); 
        }
 
        [Conditional("DEBUG")] 
        internal void AssertFunctionMappingInvariants(StorageEntityTypeFunctionMapping functionMapping) {
            Debug.Assert(null != functionMapping, "function mapping must not be null"); 
            Debug.Assert(functionMapping.EntityType.Equals(this.Set.ElementType) ||
                Helper.IsSubtypeOf(functionMapping.EntityType, this.Set.ElementType),
                "attempting to add a function mapping with the wrong entity type");
            foreach (StorageEntityTypeFunctionMapping existingFunctionMapping in m_functionMappings) { 
                Debug.Assert(!existingFunctionMapping.EntityType.Equals(functionMapping.EntityType),
                    "function mapping already exists for this type"); 
            } 
        }
        #endregion 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner [....],[....]
//--------------------------------------------------------------------- 
 
using System;
using System.Collections.Generic; 
using System.Collections.ObjectModel;
using System.Text;
using System.Data.Metadata.Edm;
using System.Diagnostics; 

namespace System.Data.Mapping { 
    ///  
    /// Represents the Mapping metadata for an EnitytSet in CS space.
    ///  
    /// 
    /// For Example if conceptually you could represent the CS MSL file as following
    /// --Mapping
    ///   --EntityContainerMapping ( CNorthwind-->SNorthwind ) 
    ///     --EntitySetMapping
    ///       --EntityTypeMapping 
    ///         --TableMappingFragment 
    ///       --EntityTypeMapping
    ///         --TableMappingFragment 
    ///     --AssociationSetMapping
    ///       --AssociationTypeMapping
    ///         --TableMappingFragment
    ///   --EntityContainerMapping ( CMyDatabase-->SMyDatabase ) 
    ///     --CompositionSetMapping
    ///       --CompositionTypeMapping 
    /// This class represents the metadata for the EntitySetMapping elements in the 
    /// above example. And it is possible to access the EntityTypeMaps underneath it.
    ///  
    internal class StorageEntitySetMapping : StorageSetMapping {
        #region Constructors
        /// 
        /// Construct a EntitySet mapping object 
        /// 
        /// EntitySet metadata object 
        /// The entity Container Mapping that contains this Set mapping 
        internal StorageEntitySetMapping(EntitySet extent, StorageEntityContainerMapping entityContainerMapping)
            : base(extent, entityContainerMapping) { 
            m_functionMappings = new List();
            m_implicitlyMappedAssociationSetEnds = new List();
        }
        #endregion 

        #region Fields 
        private readonly List m_functionMappings; 
        private readonly List m_implicitlyMappedAssociationSetEnds;
        #endregion 

        #region Properties
        /// 
        /// Gets all function mappings for this entity set. 
        /// 
        internal IList FunctionMappings { 
            get { return m_functionMappings.AsReadOnly(); } 
        }
 
        /// 
        /// Gets all association sets that are implicitly "covered" through function mappings.
        /// 
        internal IList ImplicitlyMappedAssociationSetEnds { 
            get { return m_implicitlyMappedAssociationSetEnds.AsReadOnly(); }
        } 
 

        ///  
        /// Whether the EntitySetMapping has empty content
        /// Returns true if there are no Function Maps and no table Mapping fragments
        /// 
        internal override bool HasNoContent { 
            get {
                if (m_functionMappings.Count != 0) { 
                    return false; 
                }
                return base.HasNoContent; 
            }
        }
        #endregion
 
        #region Methods
        ///  
        /// This method is primarily for debugging purposes. 
        /// Will be removed shortly.
        ///  
        internal override void Print(int index) {
            StorageEntityContainerMapping.GetPrettyPrintString(ref index);
            StringBuilder sb = new StringBuilder();
            sb.Append("EntitySetMapping"); 
            sb.Append("   ");
            sb.Append("Name:"); 
            sb.Append(this.Set.Name); 
            if (this.QueryView != null)
            { 
                sb.Append("   ");
                sb.Append("Query View:");
                sb.Append(this.QueryView);
            } 
            Console.WriteLine(sb.ToString());
            foreach (StorageTypeMapping typeMapping in TypeMappings) { 
                typeMapping.Print(index+5); 
            }
            foreach (StorageEntityTypeFunctionMapping functionMappping in m_functionMappings) 
            {
                functionMappping.Print(index + 10);
            }
        } 

        ///  
        /// Requires: 
        /// - Function mapping refers to a sub-type of this entity set's element type
        /// - Function mappings for types are not redundantly specified 
        /// Adds a new function mapping for this class.
        /// 
        /// Function mapping to add. May not be null.
        internal void AddFunctionMapping(StorageEntityTypeFunctionMapping functionMapping) { 
            AssertFunctionMappingInvariants(functionMapping);
 
            m_functionMappings.Add(functionMapping); 

            // check if any association sets are indirectly mapped within this function mapping 
            // through association navigation bindings
            functionMapping.DeleteFunctionMapping.AddReferencedAssociationSetEnds((EntitySet)this.Set, m_implicitlyMappedAssociationSetEnds);
            functionMapping.InsertFunctionMapping.AddReferencedAssociationSetEnds((EntitySet)this.Set, m_implicitlyMappedAssociationSetEnds);
            functionMapping.UpdateFunctionMapping.AddReferencedAssociationSetEnds((EntitySet)this.Set, m_implicitlyMappedAssociationSetEnds); 
        }
 
        [Conditional("DEBUG")] 
        internal void AssertFunctionMappingInvariants(StorageEntityTypeFunctionMapping functionMapping) {
            Debug.Assert(null != functionMapping, "function mapping must not be null"); 
            Debug.Assert(functionMapping.EntityType.Equals(this.Set.ElementType) ||
                Helper.IsSubtypeOf(functionMapping.EntityType, this.Set.ElementType),
                "attempting to add a function mapping with the wrong entity type");
            foreach (StorageEntityTypeFunctionMapping existingFunctionMapping in m_functionMappings) { 
                Debug.Assert(!existingFunctionMapping.EntityType.Equals(functionMapping.EntityType),
                    "function mapping already exists for this type"); 
            } 
        }
        #endregion 
    }
}

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