5 // Copyright (c) 2007-2008 Jiri Moudry, Pascal Craponne
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7 // Permission is hereby granted, free of charge, to any person obtaining a copy
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8 // of this software and associated documentation files (the "Software"), to deal
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9 // in the Software without restriction, including without limitation the rights
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10 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 // copies of the Software, and to permit persons to whom the Software is
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12 // furnished to do so, subject to the following conditions:
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14 // The above copyright notice and this permission notice shall be included in
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15 // all copies or substantial portions of the Software.
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17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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27 using System.Diagnostics;
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28 using System.Linq.Expressions;
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29 using System.Reflection;
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31 using DbLinq.Data.Linq.Sugar.Expressions;
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33 using System.Data.Linq.Mapping;
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35 namespace DbLinq.Data.Linq.Sugar.Expressions
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38 /// Describes a column, related to a table
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40 [DebuggerDisplay("ColumnExpression {Table.Name} (as {Table.Alias}).{Name}")]
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44 class ColumnExpression : MutableExpression
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46 public const ExpressionType ExpressionType = (ExpressionType)CustomExpressionType.Column;
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48 public TableExpression Table { get; private set; }
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49 public string Name { get; private set; }
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50 public MemberInfo MemberInfo { get; private set; }
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51 public MemberInfo StorageInfo { get; private set; }
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53 public string Alias { get; set; }
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55 public int RequestIndex { get; set; }
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57 public ColumnExpression(TableExpression table, MetaDataMember metaData)
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58 : base(ExpressionType, metaData.Member.GetMemberType()) // memberInfo.GetMemberType())
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61 Name = metaData.MappedName;
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62 MemberInfo = metaData.Member;
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63 StorageInfo = metaData.StorageMember;
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64 RequestIndex = -1; // unused
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