NamedExpressionCombiner analyzes the inner expression of a NamedExpression and returns a combined expression if possible. A combined expression is an expression equivalent to the inner expression but with the name included. The process of combining named expressions must be performed during the mapping resolution stage because the name of an entity or value in a sub-statement must be defined before an outer statement's reference to that entity or value is resolved by SubStatementReferenceResolver.
Inheritance: INamedExpressionCombiner
NamedExpressionCombiner Class Documentation
Beispiel #1
0
        public static Expression ResolveExpression(
            Expression expression,
            IMappingResolver resolver,
            IMappingResolutionStage stage,
            IMappingResolutionContext context,
            UniqueIdentifierGenerator generator)
        {
            ArgumentUtility.CheckNotNull("expression", expression);
            ArgumentUtility.CheckNotNull("resolver", resolver);
            ArgumentUtility.CheckNotNull("stage", stage);
            ArgumentUtility.CheckNotNull("context", context);
            ArgumentUtility.CheckNotNull("generator", generator);

            var entityIdentityResolver   = new EntityIdentityResolver(stage, resolver, context);
            var comparisonSplitter       = new CompoundExpressionComparisonSplitter();
            var namedExpressionCombiner  = new NamedExpressionCombiner(context);
            var groupAggregateSimplifier = new GroupAggregateSimplifier(stage, context);

            var visitor1 = new ResolvingExpressionVisitor(
                resolver, stage, context, generator, entityIdentityResolver, comparisonSplitter, namedExpressionCombiner, groupAggregateSimplifier, false);
            var result1 = visitor1.Visit(expression);

            var visitor2 = new ResolvingExpressionVisitor(
                resolver, stage, context, generator, entityIdentityResolver, comparisonSplitter, namedExpressionCombiner, groupAggregateSimplifier, true);
            var result2 = visitor2.Visit(result1);

            return(result2);
        }
Beispiel #2
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    public static Expression ResolveExpression (
        Expression expression,
        IMappingResolver resolver,
        IMappingResolutionStage stage,
        IMappingResolutionContext context,
        UniqueIdentifierGenerator generator)
    {
      ArgumentUtility.CheckNotNull ("expression", expression);
      ArgumentUtility.CheckNotNull ("resolver", resolver);
      ArgumentUtility.CheckNotNull ("stage", stage);
      ArgumentUtility.CheckNotNull ("context", context);
      ArgumentUtility.CheckNotNull ("generator", generator);

      var entityIdentityResolver = new EntityIdentityResolver (stage, resolver, context);
      var comparisonSplitter = new CompoundExpressionComparisonSplitter();
      var namedExpressionCombiner = new NamedExpressionCombiner (context);
      var groupAggregateSimplifier = new GroupAggregateSimplifier (stage, context);

      var visitor1 = new ResolvingExpressionVisitor (
          resolver, stage, context, generator, entityIdentityResolver, comparisonSplitter, namedExpressionCombiner, groupAggregateSimplifier, false);
      var result1 = visitor1.VisitExpression (expression);

      var visitor2 = new ResolvingExpressionVisitor (
          resolver, stage, context, generator, entityIdentityResolver, comparisonSplitter, namedExpressionCombiner, groupAggregateSimplifier, true);
      var result2 = visitor2.VisitExpression (result1);
      return result2;
    }
Beispiel #3
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 public void SetUp ()
 {
   _context = new MappingResolutionContext();
   _typeForNewExpressionConstructor = TypeForNewExpression.GetConstructor (typeof (int));
   _namedExpressionCombiner = new NamedExpressionCombiner (_context);
 }