CellIdBoolean.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 / Map / ViewGeneration / Structures / CellIdBoolean.cs / 2 / CellIdBoolean.cs
                        
                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner [....]
// @backupOwner [....] 
//--------------------------------------------------------------------- 

using System.Data.Common.Utils.Boolean; 
using System.Text;
using System.Collections.Generic;
using System.Data.Common.Utils;
using System.Data.Mapping.ViewGeneration.CqlGeneration; 
using System.Data.Mapping.ViewGeneration.Utils;
 
namespace System.Data.Mapping.ViewGeneration.Structures { 

    using DomainBoolExpr  = BoolExpr>; 
    using DomainNotExpr   = NotExpr>;
    using DomainTermExpr  = TermExpr>;
    using System.Data.Entity;
 
    /// 
    /// Wraps from0, from1, etc. boolean fields that identify 
    /// the source of tuples (# of respective cell query) in the view statements 
    /// 
    internal class CellIdBoolean : TrueFalseLiteral { 

        #region Constructor
        // effects: Creates a boolean expression for the variable name
        // specified by "index", e.g., 0  results in from0, 1 into from1 
        internal CellIdBoolean(CqlIdentifiers identifiers, int index) {
            m_identifiers = identifiers; 
            m_index = index; 
        }
        #endregion 

        #region Fields
        private int m_index; // e.g., from0, from1
        private CqlIdentifiers m_identifiers; // Whether the prefix should be _from or something more complicated due to collisions 
        #endregion
 
        #region Properties 
        // effects: Returns the slotName corresponding to this, ie., _from0 etc
        internal string SlotName { 
            get {
                string result = m_identifiers.GetFromVariable(m_index);
                return result;
            } 
        }
        #endregion 
 
        #region BoolLiteral members
        internal override StringBuilder AsCql(StringBuilder builder, string blockAlias, bool canSkipIsNotNull) { 
            // Get e.g., T2._from1 using the table alias
            string qualifiedName = CqlWriter.GetQualifiedName(blockAlias, SlotName);
            builder.Append(qualifiedName);
 			return builder; 
        }
 
        internal override StringBuilder AsUserString(StringBuilder builder, string blockAlias, bool canSkipIsNotNull) 
        {
            return AsCql(builder, blockAlias, canSkipIsNotNull); 
        }

        internal override StringBuilder AsNegatedUserString(StringBuilder builder, string blockAlias, bool canSkipIsNotNull)
        { 
            builder.Append("NOT(");
            builder = AsUserString(builder, blockAlias, canSkipIsNotNull); 
            builder.Append(")"); 
            return builder;
        } 

        internal override void GetRequiredSlots(MemberPathMapBase projectedSlotMap, bool[] requiredSlots) {
            // The slot corresponding to from1, etc
            int numBoolSlots = requiredSlots.Length - projectedSlotMap.Count; 
            int slotNum = ProjectedSlot.BoolIndexToSlot(m_index, projectedSlotMap, numBoolSlots);
            requiredSlots[slotNum] = true; 
        } 

        protected override bool IsEqualTo(BoolLiteral right) { 
            CellIdBoolean rightBoolean = right as CellIdBoolean;
            if (rightBoolean == null) {
                return false;
            } 
            return m_index == rightBoolean.m_index;
        } 
 
        protected override int GetHash() {
            return m_index.GetHashCode(); 
        }

        // effects: See BoolExpression.RemapBool
        internal override BoolLiteral RemapBool(Dictionary remap) { 
            return this;
        } 
 
        internal override bool CheckRepInvariant() {
            ExceptionHelpers.CheckAndThrowRes(m_index >= 0, () => Strings.ViewGen_CellIdBooleans_Invalid); 
            return true;
        }
        #endregion
 
        #region Other Methods
        internal override void ToCompactString(StringBuilder builder) { 
            builder.Append(SlotName); 
        }
        #endregion 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner [....]
// @backupOwner [....] 
//--------------------------------------------------------------------- 

using System.Data.Common.Utils.Boolean; 
using System.Text;
using System.Collections.Generic;
using System.Data.Common.Utils;
using System.Data.Mapping.ViewGeneration.CqlGeneration; 
using System.Data.Mapping.ViewGeneration.Utils;
 
namespace System.Data.Mapping.ViewGeneration.Structures { 

    using DomainBoolExpr  = BoolExpr>; 
    using DomainNotExpr   = NotExpr>;
    using DomainTermExpr  = TermExpr>;
    using System.Data.Entity;
 
    /// 
    /// Wraps from0, from1, etc. boolean fields that identify 
    /// the source of tuples (# of respective cell query) in the view statements 
    /// 
    internal class CellIdBoolean : TrueFalseLiteral { 

        #region Constructor
        // effects: Creates a boolean expression for the variable name
        // specified by "index", e.g., 0  results in from0, 1 into from1 
        internal CellIdBoolean(CqlIdentifiers identifiers, int index) {
            m_identifiers = identifiers; 
            m_index = index; 
        }
        #endregion 

        #region Fields
        private int m_index; // e.g., from0, from1
        private CqlIdentifiers m_identifiers; // Whether the prefix should be _from or something more complicated due to collisions 
        #endregion
 
        #region Properties 
        // effects: Returns the slotName corresponding to this, ie., _from0 etc
        internal string SlotName { 
            get {
                string result = m_identifiers.GetFromVariable(m_index);
                return result;
            } 
        }
        #endregion 
 
        #region BoolLiteral members
        internal override StringBuilder AsCql(StringBuilder builder, string blockAlias, bool canSkipIsNotNull) { 
            // Get e.g., T2._from1 using the table alias
            string qualifiedName = CqlWriter.GetQualifiedName(blockAlias, SlotName);
            builder.Append(qualifiedName);
 			return builder; 
        }
 
        internal override StringBuilder AsUserString(StringBuilder builder, string blockAlias, bool canSkipIsNotNull) 
        {
            return AsCql(builder, blockAlias, canSkipIsNotNull); 
        }

        internal override StringBuilder AsNegatedUserString(StringBuilder builder, string blockAlias, bool canSkipIsNotNull)
        { 
            builder.Append("NOT(");
            builder = AsUserString(builder, blockAlias, canSkipIsNotNull); 
            builder.Append(")"); 
            return builder;
        } 

        internal override void GetRequiredSlots(MemberPathMapBase projectedSlotMap, bool[] requiredSlots) {
            // The slot corresponding to from1, etc
            int numBoolSlots = requiredSlots.Length - projectedSlotMap.Count; 
            int slotNum = ProjectedSlot.BoolIndexToSlot(m_index, projectedSlotMap, numBoolSlots);
            requiredSlots[slotNum] = true; 
        } 

        protected override bool IsEqualTo(BoolLiteral right) { 
            CellIdBoolean rightBoolean = right as CellIdBoolean;
            if (rightBoolean == null) {
                return false;
            } 
            return m_index == rightBoolean.m_index;
        } 
 
        protected override int GetHash() {
            return m_index.GetHashCode(); 
        }

        // effects: See BoolExpression.RemapBool
        internal override BoolLiteral RemapBool(Dictionary remap) { 
            return this;
        } 
 
        internal override bool CheckRepInvariant() {
            ExceptionHelpers.CheckAndThrowRes(m_index >= 0, () => Strings.ViewGen_CellIdBooleans_Invalid); 
            return true;
        }
        #endregion
 
        #region Other Methods
        internal override void ToCompactString(StringBuilder builder) { 
            builder.Append(SlotName); 
        }
        #endregion 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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CellIdBoolean.cs source code in C# .NET

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