BooleanProjectedSlot.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / ndp / fx / src / DataEntity / System / Data / Map / ViewGeneration / CqlGeneration / BooleanProjectedSlot.cs / 1 / BooleanProjectedSlot.cs
                        

                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner [....]
// @backupOwner [....] 
//--------------------------------------------------------------------- 

 
using System.Data.Mapping.ViewGeneration.Structures;
using System.Text;
using System.Diagnostics;
using System.Data.Common.Utils; 

namespace System.Data.Mapping.ViewGeneration.CqlGeneration { 
 
    // This class represents slots for the boolean variables, e.g., _from0,
    // _from1, etc 
    internal class BooleanProjectedSlot : ProjectedSlot {

        #region Constructor
        // effects: Creates a boolean slot for expression that comes from 
        // originalCellNum, i.e., the value of the slot is "expr" and the
        // name is "_from", e.g., _from2 
        internal BooleanProjectedSlot(BoolExpression expr, CqlIdentifiers identifiers, int originalCellNum) { 
            m_expr = expr;
            m_originalCell = new CellIdBoolean(identifiers, originalCellNum); 
            CellIdBoolean boolExpr = expr.AsLiteral as CellIdBoolean;
            Debug.Assert(boolExpr == null ||
                         BoolLiteral.EqualityComparer.Equals(boolExpr, m_originalCell),
                         "Cellid boolean for the slot and cell number disagree"); 
        }
        #endregion 
 
        #region Fields
        private BoolExpression m_expr; // The actual value of the slot - 
                                       // could be CellIdBoolean!
        // A boolean corresponding to the original cell number (from0)
        private CellIdBoolean m_originalCell;
        #endregion 

        #region Methods 
        internal override StringBuilder AsCql(StringBuilder builder, MemberPath outputMember, 
 											  string blockAlias, int indentLevel) {
            if (m_expr.IsTrue || m_expr.IsFalse) { 
                // No Case statement for TRUE and FALSE
                m_expr.AsCql(builder, blockAlias);
            } else {
                builder.Append("CASE WHEN "); 
                m_expr.AsCql(builder, blockAlias);
                builder.Append(" THEN True ELSE False END"); 
            } 
            return builder;
        } 

        internal override string CqlFieldAlias(MemberPath outputMember) {
            // Return _from0, _from1 etc
            return m_originalCell.SlotName; 
        }
 
        internal override void ToCompactString(StringBuilder builder) { 
            StringUtil.FormatStringBuilder(builder, "<{0}, ", m_originalCell.SlotName);
            m_expr.ToCompactString(builder); 
            builder.Append('>');
        }
        #endregion
 
    }
} 

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

 
using System.Data.Mapping.ViewGeneration.Structures;
using System.Text;
using System.Diagnostics;
using System.Data.Common.Utils; 

namespace System.Data.Mapping.ViewGeneration.CqlGeneration { 
 
    // This class represents slots for the boolean variables, e.g., _from0,
    // _from1, etc 
    internal class BooleanProjectedSlot : ProjectedSlot {

        #region Constructor
        // effects: Creates a boolean slot for expression that comes from 
        // originalCellNum, i.e., the value of the slot is "expr" and the
        // name is "_from", e.g., _from2 
        internal BooleanProjectedSlot(BoolExpression expr, CqlIdentifiers identifiers, int originalCellNum) { 
            m_expr = expr;
            m_originalCell = new CellIdBoolean(identifiers, originalCellNum); 
            CellIdBoolean boolExpr = expr.AsLiteral as CellIdBoolean;
            Debug.Assert(boolExpr == null ||
                         BoolLiteral.EqualityComparer.Equals(boolExpr, m_originalCell),
                         "Cellid boolean for the slot and cell number disagree"); 
        }
        #endregion 
 
        #region Fields
        private BoolExpression m_expr; // The actual value of the slot - 
                                       // could be CellIdBoolean!
        // A boolean corresponding to the original cell number (from0)
        private CellIdBoolean m_originalCell;
        #endregion 

        #region Methods 
        internal override StringBuilder AsCql(StringBuilder builder, MemberPath outputMember, 
 											  string blockAlias, int indentLevel) {
            if (m_expr.IsTrue || m_expr.IsFalse) { 
                // No Case statement for TRUE and FALSE
                m_expr.AsCql(builder, blockAlias);
            } else {
                builder.Append("CASE WHEN "); 
                m_expr.AsCql(builder, blockAlias);
                builder.Append(" THEN True ELSE False END"); 
            } 
            return builder;
        } 

        internal override string CqlFieldAlias(MemberPath outputMember) {
            // Return _from0, _from1 etc
            return m_originalCell.SlotName; 
        }
 
        internal override void ToCompactString(StringBuilder builder) { 
            StringUtil.FormatStringBuilder(builder, "<{0}, ", m_originalCell.SlotName);
            m_expr.ToCompactString(builder); 
            builder.Append('>');
        }
        #endregion
 
    }
} 

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

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