72 lines
2.7 KiB
C#
72 lines
2.7 KiB
C#
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//---------------------------------------------------------------------
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// <copyright file="CaseStatementProjectedSlot.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//
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// @owner [....]
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// @backupOwner [....]
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//---------------------------------------------------------------------
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using System.Data.Mapping.ViewGeneration.CqlGeneration;
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using System.Text;
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using System.Collections.Generic;
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using System.Data.Common.CommandTrees;
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using System.Data.Common.CommandTrees.ExpressionBuilder;
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namespace System.Data.Mapping.ViewGeneration.Structures
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{
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/// <summary>
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/// This class is just a wrapper over case statements so that we don't pollute the <see cref="CaseStatement"/> class itself.
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/// </summary>
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internal sealed class CaseStatementProjectedSlot : ProjectedSlot
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{
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#region Constructor
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/// <summary>
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/// Creates a slot for <paramref name="statement"/>.
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/// </summary>
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internal CaseStatementProjectedSlot(CaseStatement statement, IEnumerable<WithRelationship> withRelationships)
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{
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m_caseStatement = statement;
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m_withRelationships = withRelationships;
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}
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#endregion
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#region Fields
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/// <summary>
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/// The actual case statement.
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/// </summary>
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private readonly CaseStatement m_caseStatement;
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private readonly IEnumerable<WithRelationship> m_withRelationships;
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#endregion
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#region Methods
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/// <summary>
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/// Creates new <see cref="ProjectedSlot"/> that is qualified with <paramref name="block"/>.CqlAlias.
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/// If current slot is composite (such as <see cref="CaseStatementProjectedSlot"/>, then this method recursively qualifies all parts
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/// and returns a new deeply qualified slot (as opposed to <see cref="CqlBlock.QualifySlotWithBlockAlias"/>).
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/// </summary>
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internal override ProjectedSlot DeepQualify(CqlBlock block)
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{
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CaseStatement newStatement = m_caseStatement.DeepQualify(block);
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return new CaseStatementProjectedSlot(newStatement, null);
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}
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internal override StringBuilder AsEsql(StringBuilder builder, MemberPath outputMember, string blockAlias, int indentLevel)
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{
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m_caseStatement.AsEsql(builder, m_withRelationships, blockAlias, indentLevel);
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return builder;
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}
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internal override DbExpression AsCqt(DbExpression row, MemberPath outputMember)
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{
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return m_caseStatement.AsCqt(row, m_withRelationships);
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}
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internal override void ToCompactString(StringBuilder builder)
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{
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m_caseStatement.ToCompactString(builder);
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}
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#endregion
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}
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}
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