Beispiel #1
0
        /// <summary> Gets a scalar value, calculated with the aggregate and expression specified. the field index specified is the field the expression and aggregate are applied on.</summary>
        /// <param name="fieldIndex">Field index of field to which to apply the aggregate function and expression</param>
        /// <param name="expressionToExecute">The expression to execute. Can be null</param>
        /// <param name="aggregateToApply">Aggregate function to apply. </param>
        /// <param name="filter">The filter to apply to retrieve the scalar</param>
        /// <param name="relations">The relations to walk</param>
        /// <param name="groupByClause">The groupby clause to apply to retrieve the scalar</param>
        /// <returns>the scalar value requested</returns>
        public virtual object GetScalar(DeepFryerFieldIndex fieldIndex, IExpression expressionToExecute, AggregateFunction aggregateToApply, IPredicate filter, IRelationCollection relations, IGroupByCollection groupByClause)
        {
            EntityFields fields = new EntityFields(1);

            fields[0] = EntityFieldFactory.Create(fieldIndex);
            if ((fields[0].ExpressionToApply == null) || (expressionToExecute != null))
            {
                fields[0].ExpressionToApply = expressionToExecute;
            }
            if ((fields[0].AggregateFunctionToApply == AggregateFunction.None) || (aggregateToApply != AggregateFunction.None))
            {
                fields[0].AggregateFunctionToApply = aggregateToApply;
            }
            DeepFryerDAO dao = DAOFactory.CreateDeepFryerDAO();

            return(dao.GetScalar(fields, base.Transaction, filter, relations, groupByClause));
        }
Beispiel #2
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 /// <summary> Creates a new IEntityField2 instance for usage in the EntityFields object for the DeepFryerEntity. Which EntityField is created is specified by fieldIndex</summary>
 /// <param name="fieldIndex">The field which IEntityField2 instance should be created</param>
 /// <returns>The IEntityField2 instance for the field specified in fieldIndex</returns>
 public static IEntityField2 Create(DeepFryerFieldIndex fieldIndex)
 {
     return(new EntityField2(FieldInfoProviderSingleton.GetInstance().GetFieldInfo("DeepFryerEntity", (int)fieldIndex)));
 }
Beispiel #3
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        /// <summary>Creates a new IEntityField instance for usage in the EntityFields object for the DeepFryerEntity.  Which EntityField is created is specified by fieldIndex</summary>
        /// <param name="fieldIndex">The field which IEntityField instance should be created</param>
        /// <returns>The IEntityField instance for the field specified in fieldIndex</returns>
        public static IEntityField Create(DeepFryerFieldIndex fieldIndex)
        {
            IFieldInfo info = FieldInfoProviderSingleton.GetInstance().GetFieldInfo("DeepFryerEntity", (int)fieldIndex);

            return(new EntityField(info, PersistenceInfoProviderSingleton.GetInstance().GetFieldPersistenceInfo(info.ContainingObjectName, info.Name)));
        }
Beispiel #4
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 /// <summary> Gets a scalar value, calculated with the aggregate and expression specified. the field index specified is the field the expression and aggregate are applied on.</summary>
 /// <param name="fieldIndex">Field index of field to which to apply the aggregate function and expression</param>
 /// <param name="expressionToExecute">The expression to execute. Can be null</param>
 /// <param name="aggregateToApply">Aggregate function to apply. </param>
 /// <param name="filter">The filter to apply to retrieve the scalar</param>
 /// <param name="groupByClause">The groupby clause to apply to retrieve the scalar</param>
 /// <returns>the scalar value requested</returns>
 public object GetScalar(DeepFryerFieldIndex fieldIndex, IExpression expressionToExecute, AggregateFunction aggregateToApply, IPredicate filter, IGroupByCollection groupByClause)
 {
     return(GetScalar(fieldIndex, expressionToExecute, aggregateToApply, filter, null, groupByClause));
 }
Beispiel #5
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 /// <summary> Gets a scalar value, calculated with the aggregate and expression specified. the field index specified is the field the expression and aggregate are applied on.</summary>
 /// <param name="fieldIndex">Field index of field to which to apply the aggregate function and expression</param>
 /// <param name="expressionToExecute">The expression to execute. Can be null</param>
 /// <param name="aggregateToApply">Aggregate function to apply. </param>
 /// <returns>the scalar value requested</returns>
 public object GetScalar(DeepFryerFieldIndex fieldIndex, IExpression expressionToExecute, AggregateFunction aggregateToApply)
 {
     return(GetScalar(fieldIndex, expressionToExecute, aggregateToApply, null, null, null));
 }
Beispiel #6
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 /// <summary> Gets a scalar value, calculated with the aggregate. the field index specified is the field the aggregate are applied on.</summary>
 /// <param name="fieldIndex">Field index of field to which to apply the aggregate function and expression</param>
 /// <param name="aggregateToApply">Aggregate function to apply. </param>
 /// <returns>the scalar value requested</returns>
 public object GetScalar(DeepFryerFieldIndex fieldIndex, AggregateFunction aggregateToApply)
 {
     return(GetScalar(fieldIndex, null, aggregateToApply, null, null, null));
 }