Exemple #1
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 private SqlFormatter(QueryLanguage language, bool forDebug)
 {
     this.language = language;
     this.sb = new StringBuilder();
     this.aliases = new Dictionary<TableAlias, string>();
     this.forDebug = forDebug;
 }
Exemple #2
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 private QueryBinder(QueryMapper mapper, Expression root)
 {
     this.mapper = mapper;
     this.language = mapper.Translator.Linguist.Language;
     this.map = new Dictionary<ParameterExpression, Expression>();
     this.groupByMap = new Dictionary<Expression, GroupByInfo>();
     this.root = root;
 }
        public static SelectExpression AddRedundantSelect(this SelectExpression sel, QueryLanguage language, TableAlias newAlias)
        {
            var newColumns =
                from d in sel.Columns
                let qt = (d.Expression is ColumnExpression) ? ((ColumnExpression)d.Expression).QueryType : language.TypeSystem.GetColumnType(d.Expression.Type)
                select new ColumnDeclaration(d.Name, new ColumnExpression(d.Expression.Type, qt, newAlias, d.Name), qt);

            var newFrom = new SelectExpression(newAlias, sel.Columns, sel.From, sel.Where, sel.OrderBy, sel.GroupBy, sel.IsDistinct, sel.Skip, sel.Take, sel.IsReverse);
            return new SelectExpression(sel.Alias, newColumns, newFrom, null, null, null, false, null, null, false);
        }
 public static ProjectionExpression AddOuterJoinTest(this ProjectionExpression proj, QueryLanguage language, Expression expression)
 {
     string colName = proj.Select.Columns.GetAvailableColumnName("Test");
     var colType = language.TypeSystem.GetColumnType(expression.Type);
     SelectExpression newSource = proj.Select.AddColumn(new ColumnDeclaration(colName, expression, colType));
     Expression newProjector =
         new OuterJoinedExpression(
             new ColumnExpression(expression.Type, colType, newSource.Alias, colName),
             proj.Projector
             );
     return new ProjectionExpression(newSource, newProjector, proj.Aggregator);
 }
Exemple #5
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 private ColumnProjector(QueryLanguage language, Expression expression, IEnumerable<ColumnDeclaration> existingColumns, TableAlias newAlias, IEnumerable<TableAlias> existingAliases)
 {
     this.language = language;
     this.newAlias = newAlias;
     this.existingAliases = new HashSet<TableAlias>(existingAliases);
     this.map = new Dictionary<ColumnExpression, ColumnExpression>();
     if (existingColumns != null)
     {
         this.columns = new List<ColumnDeclaration>(existingColumns);
         this.columnNames = new HashSet<string>(existingColumns.Select(c => c.Name));
     }
     else
     {
         this.columns = new List<ColumnDeclaration>();
         this.columnNames = new HashSet<string>();
     }
     this.candidates = Nominator.Nominate(language, expression);
 }
 private CrossApplyRewriter(QueryLanguage language)
 {
     this.language = language;
 }
Exemple #7
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 public QueryLinguist(QueryLanguage language, QueryTranslator translator)
 {
     this.language = language;
     this.translator = translator;
 }
 public static Expression Rewrite(QueryLanguage language, Expression expression)
 {
     return new SkipToRowNumberRewriter(language).Visit(expression);
 }
Exemple #9
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 private OrderByRewriter(QueryLanguage language)
 {
     this.language = language;
     this.isOuterMostSelect = true;
 }
Exemple #10
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 public static string WriteToString(QueryLanguage language, Expression expression)
 {
     StringWriter sw = new StringWriter();
     Write(sw, language, expression);
     return sw.ToString();
 }
Exemple #11
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 protected DbExpressionWriter(TextWriter writer, QueryLanguage language)
     : base(writer)
 {
     this.language = language;
 }
 private SingletonProjectionRewriter(QueryLanguage language)
 {
     this.language = language;
 }
Exemple #13
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 private RelationshipBinder(QueryMapper mapper)
 {
     this.mapper = mapper;
     this.mapping = mapper.Mapping;
     this.language = mapper.Translator.Linguist.Language;
 }
Exemple #14
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 public static ProjectedColumns ProjectColumns(QueryLanguage language, Expression expression, IEnumerable<ColumnDeclaration> existingColumns, TableAlias newAlias, params TableAlias[] existingAliases)
 {
     return ProjectColumns(language, expression, existingColumns, newAlias, (IEnumerable<TableAlias>)existingAliases);
 }
Exemple #15
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 public static ProjectedColumns ProjectColumns(QueryLanguage language, Expression expression, IEnumerable<ColumnDeclaration> existingColumns, TableAlias newAlias, IEnumerable<TableAlias> existingAliases)
 {
     ColumnProjector projector = new ColumnProjector(language, expression, existingColumns, newAlias, existingAliases);
     Expression expr = projector.Visit(expression);
     return new ProjectedColumns(expr, projector.columns.AsReadOnly());
 }
Exemple #16
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 internal static HashSet<Expression> Nominate(QueryLanguage language, Expression expression)
 {
     Nominator nominator = new Nominator(language);
     nominator.Visit(expression);
     return nominator.candidates;
 }
Exemple #17
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 private Nominator(QueryLanguage language)
 {
     this.language = language;
     this.candidates = new HashSet<Expression>();
     this.isBlocked = false;
 }
Exemple #18
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 protected SqlFormatter(QueryLanguage language)
     : this(language, false)
 {
 }
 private ClientJoinedProjectionRewriter(QueryPolicy policy, QueryLanguage language)
 {
     this.policy = policy;
     this.language = language;
 }
 public static Expression Rewrite(QueryPolicy policy, QueryLanguage language, Expression expression)
 {
     return new ClientJoinedProjectionRewriter(policy, language).Visit(expression);
 }
 public static Expression Rewrite(QueryLanguage language, Expression expression)
 {
     return new SingletonProjectionRewriter(language).Visit(expression);
 }
Exemple #22
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 private AggregateRewriter(QueryLanguage language, Expression expr)
 {
     this.language = language;
     this.map = new Dictionary<AggregateSubqueryExpression, Expression>();
     this.lookup = AggregateGatherer.Gather(expr).ToLookup(a => a.GroupByAlias);
 }
Exemple #23
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 public static void Write(TextWriter writer, QueryLanguage language, Expression expression)
 {
     new DbExpressionWriter(writer, language).Visit(expression);
 }
Exemple #24
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 public static Expression Rewrite(QueryLanguage language, Expression expr)
 {
     return new AggregateRewriter(language, expr).Visit(expr);
 }
Exemple #25
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 public QueryTranslator(QueryLanguage language, QueryMapping mapping, QueryPolicy policy)
 {
     this.linguist = language.CreateLinguist(this);
     this.mapper = mapping.CreateMapper(this);
     this.police = policy.CreatePolice(this);
 }
 private SkipToNestedOrderByRewriter(QueryLanguage language)
 {
     this.language = language;
 }
Exemple #27
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 public static Expression Rewrite(QueryLanguage language, Expression expression)
 {
     return new OrderByRewriter(language).Visit(expression);
 }
 private SkipToRowNumberRewriter(QueryLanguage language)
 {
     this.language = language;
 }