コード例 #1
0
        protected override Expression VisitCollectionAccess(CollectionAccessExpression expr)
        {
            MemberNameVisitor visitor = new MemberNameVisitor(_rootCriteria, false);
            visitor.Visit(expr.Expression);

            visitor.CurrentCriteria.CreateCriteria(expr.Name, _alias, JoinType.LeftOuterJoin);
            return expr;
        }
コード例 #2
0
 protected virtual Expression VisitCollectionAccess(CollectionAccessExpression expr)
 {
     EntityExpression e = (EntityExpression)Visit(expr.Expression);
     if (e != expr.Expression)
     {
         return new CollectionAccessExpression(expr.Name, expr.Type, expr.NHibernateType, e, expr.ElementExpression);
     }
     return expr;
 }
コード例 #3
0
        private Expression CastIfNecessary(CollectionAccessExpression expr)
        {
            if (expr.Type.IsGenericType)
                return expr;

            MethodInfo method = typeof(Enumerable).GetMethod("Cast")
                .MakeGenericMethod(expr.ElementExpression.Type);

            return Expression.Call(method, expr);
        }
コード例 #4
0
        protected override Expression VisitCollectionAccess(CollectionAccessExpression expr)
        {
            EntityExpression elementExpression = expr.ElementExpression;
            if (elementExpression == null)
                return expr;

            string alias = FindCollectionAlias(elementExpression.Type);

            if (String.IsNullOrEmpty(alias))
                return expr;

            elementExpression = new EntityExpression(elementExpression.AssociationPath, alias, elementExpression.Type, elementExpression.MetaData, elementExpression.Expression);
            return new CollectionAccessExpression(expr.Name, expr.Type, expr.NHibernateType, expr.Expression, elementExpression);
        }
コード例 #5
0
 protected override Expression VisitCollectionAccess(CollectionAccessExpression expr)
 {
     return VisitPropertyAccess(expr);
 }
コード例 #6
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        protected override Expression VisitCollectionAccess(CollectionAccessExpression expr)
        {
            expr = (CollectionAccessExpression)base.VisitCollectionAccess(expr);
            //memberNameBuilder.Append(expr.Name + ".");
            ResetMemberName(expr.Name + ".");
            currentExpression = expr;

            if (createCriteriaForCollections)
            {
                if (expr.ElementExpression != null)
                {
                    currentCriteria = EnsureCriteria(expr.Name, expr.ElementExpression.Alias);
                }
            }

            isQueringEntity = false;

            return expr;
        }
コード例 #7
0
        private ICriterion GetCollectionContainsCriteria(CollectionAccessExpression arg, Expression containsExpression)
        {
            EntityExpression rootEntity = EntityExpressionVisitor.FirstEntity(arg);

            var rootEntityType = rootEntity.Type;
            if (rootEntity.MetaData.HasProxy)
            {
                rootEntityType = rootEntity.MetaData.GetMappedClass(EntityMode.Poco);
            }

            DetachedCriteria query = DetachedCriteria.For(rootEntityType)
                .SetProjection(Projections.Id());

            var visitor = new MemberNameVisitor(query.Adapt(session), true);
            visitor.Visit(arg);

            //TODO: this won't work for collections of values
            var containedEntity = QueryUtil.GetExpressionValue(containsExpression);
            var collectionIdPropertyName = visitor.MemberName + "." + arg.ElementExpression.MetaData.IdentifierPropertyName;
            var idValue = arg.ElementExpression.MetaData.GetIdentifier(containedEntity, EntityMode.Poco);

            query.Add(Restrictions.Eq(collectionIdPropertyName, idValue));

            string identifierName = rootEntity.MetaData.IdentifierPropertyName;
            return Subqueries.PropertyIn(identifierName, query);
        }
コード例 #8
0
 protected override Expression VisitCollectionAccess(CollectionAccessExpression expr)
 {
     Type = BinaryCriterionType.Property;
     return expr;
 }