Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Data.Entity/System/Data/Mapping/StorageConditionPropertyMapping.cs

@@ -0,0 +1,160 @@
+//---------------------------------------------------------------------
+// <copyright file="StorageConditionPropertyMapping.cs" company="Microsoft">
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//
+// @owner       [....]
+// @backupOwner [....]
+//---------------------------------------------------------------------
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Diagnostics;
+using System.Data.Metadata.Edm;
+
+namespace System.Data.Mapping {
+    /// <summary>
+    /// Mapping metadata for Conditional property mapping on a type.
+    /// Condition Property Mapping specifies a Condition either on the C side property or S side property.
+    /// </summary>
+    /// <example>
+    /// For Example if conceptually you could represent the CS MSL file as following
+    /// --Mapping 
+    ///   --EntityContainerMapping ( CNorthwind-->SNorthwind )
+    ///     --EntitySetMapping
+    ///       --EntityTypeMapping
+    ///         --MappingFragment
+    ///           --EntityKey
+    ///             --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata )
+    ///           --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata )
+    ///           --ConditionProperyMap ( constant value-->SMemberMetadata )
+    ///       --EntityTypeMapping
+    ///         --MappingFragment
+    ///           --EntityKey
+    ///             --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata )
+    ///           --ComplexPropertyMap
+    ///             --ComplexTypeMap
+    ///               --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata )
+    ///               --ScalarProperyMap ( CMemberMetadata-->SMemberMetadata )
+    ///           --ConditionProperyMap ( constant value-->SMemberMetadata )
+    ///     --AssociationSetMapping 
+    ///       --AssociationTypeMapping
+    ///         --MappingFragment
+    ///           --EndPropertyMap
+    ///             --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata )
+    ///             --ScalarProperyMap ( CMemberMetadata-->SMemberMetadata )
+    ///           --EndPropertyMap
+    ///             --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata )
+    /// This class represents the metadata for all the condition property map elements in the 
+    /// above example.
+    /// </example>
+    internal class StorageConditionPropertyMapping : StoragePropertyMapping {
+        #region Constructors
+        /// <summary>
+        /// Construct a new condition Property mapping object
+        /// </summary>
+        /// <param name="cdmMember"></param>
+        /// <param name="columnMember"></param>
+        /// <param name="value"></param>
+        /// <param name="isNull"></param>
+        internal StorageConditionPropertyMapping(EdmProperty cdmMember, EdmProperty columnMember
+            , object value, Nullable<bool> isNull) : base(cdmMember) {
+            Debug.Assert((cdmMember != null) || (columnMember != null), "Both CDM and Column Members can not be specified for Condition Mapping");
+            Debug.Assert((cdmMember == null) || (columnMember == null), "Either CDM or Column Members has to be specified for Condition Mapping");
+            Debug.Assert((isNull.HasValue) || (value != null), "Both Value and IsNull can not be specified on Condition Mapping");
+            Debug.Assert(!(isNull.HasValue) || (value == null), "Either Value or IsNull has to be specified on Condition Mapping");
+            this.m_columnMember = columnMember;
+            this.m_value = value;
+            this.m_isNull = isNull;
+        }
+        #endregion
+
+        #region Fields
+        /// <summary>
+        /// Column EdmMember for which the condition is specified.
+        /// </summary>
+        EdmProperty m_columnMember;
+        /// <summary>
+        /// Value for the condition thats being mapped.
+        /// </summary>
+        object m_value;
+        bool? m_isNull;
+        #endregion
+
+        #region Properties
+        /// <summary>
+        /// Value for the condition
+        /// </summary>
+        internal object Value {
+            get {
+                return this.m_value;
+            }
+        }
+
+        /// <summary>
+        /// Whether the property is being mapped to Null or NotNull
+        /// </summary>
+        internal Nullable<bool> IsNull {
+            get {
+                return this.m_isNull;
+            }
+        }
+
+
+        /// <summary>
+        /// ColumnMember for which the Condition Map is being specified
+        /// </summary>
+        internal EdmProperty ColumnProperty {
+            get {
+                return this.m_columnMember;
+            }
+        }
+        #endregion
+
+        #region Methods
+        /// <summary>
+        /// This method is primarily for debugging purposes.
+        /// Will be removed shortly.
+        /// </summary>
+        /// <param name="index"></param>
+        internal override void Print(int index) {
+            StorageEntityContainerMapping.GetPrettyPrintString(ref index);
+            StringBuilder sb = new StringBuilder();
+            sb.Append("ConditionPropertyMapping");
+            sb.Append("   ");
+            if (this.EdmProperty != null) {
+                sb.Append("Name:");
+                sb.Append(this.EdmProperty.Name);
+                sb.Append("   ");
+            }
+            if (this.ColumnProperty != null) {
+                sb.Append("Column Name:");
+                sb.Append(this.ColumnProperty.Name);
+                sb.Append("   ");
+            }
+            if (this.Value != null) {
+                sb.Append("Value:");
+                sb.Append("'" + Value + "'");
+                sb.Append("   ");
+                sb.Append("Value CLR Type:");
+                sb.Append("'" + Value.GetType() + "'");
+                sb.Append("   ");
+            }
+            sb.Append("Value TypeMetadata:");
+            EdmType memberType = (ColumnProperty != null) ? ColumnProperty.TypeUsage.EdmType : null;
+            if (memberType != null)
+            {
+                sb.Append("'" + memberType.FullName + "'");
+                sb.Append("   ");
+            }
+            if (this.IsNull.HasValue) {
+                sb.Append("IsNull:");
+                sb.Append(this.IsNull);
+                sb.Append("   ");
+            }
+            Console.WriteLine(sb.ToString());
+        }
+        #endregion
+    }
+}