FunctionConfigurationExtensions.cs

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// 
//  Copyright 2010-2015 Deveel
// 
//    Licensed under the Apache License, Version 2.0 (the "License");
//    you may not use this file except in compliance with the License.
//    You may obtain a copy of the License at
// 
//        http://www.apache.org/licenses/LICENSE-2.0
// 
//    Unless required by applicable law or agreed to in writing, software
//    distributed under the License is distributed on an "AS IS" BASIS,
//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//    See the License for the specific language governing permissions and
//    limitations under the License.
//

using System;

using Deveel.Data.Routines;
using Deveel.Data.Types;

namespace Deveel.Data.Sql.Fluid {
    public static class FunctionConfigurationExtensions {
        public static IFunctionConfiguration Named(this IFunctionConfiguration configuration, string name) {
            var routineConfig = configuration as IRoutineConfiguration;
            if (routineConfig == null)
                throw new InvalidOperationException();

            return configuration.Named(new ObjectName(new ObjectName(routineConfig.Context.SchemaName), name));
        }

        public static IFunctionConfiguration WithAlias(this IFunctionConfiguration configuration, string alias) {
            var routineConfig = configuration as IRoutineConfiguration;
            if (routineConfig == null)
                throw new InvalidOperationException();

            return configuration.WithAlias(new ObjectName(new ObjectName(routineConfig.Context.SchemaName), alias));
        }

        public static IFunctionConfiguration OfAggregateType(this IFunctionConfiguration configuration) {
            configuration.OfType(FunctionType.Aggregate);
            return configuration;
        }

        public static IFunctionConfiguration WithParameter(this IFunctionConfiguration configuration, string name,
            SqlType type) {
            return configuration.WithParameter(config => config.Named(name).OfType(type));
        }

        public static IFunctionConfiguration WithNumericParameter(this IFunctionConfiguration configuration, string name) {
            return configuration.WithParameter(name, PrimitiveTypes.Numeric());
        }

        public static IFunctionConfiguration WithStringParameter(this IFunctionConfiguration configuration, string name) {
            return configuration.WithParameter(name, PrimitiveTypes.String());
        }

        public static IFunctionConfiguration WithDynamicParameter(this IFunctionConfiguration configuration, string name) {
            return configuration.WithParameter(name, Function.DynamicType);
        }

        public static IFunctionConfiguration WithBooleanParameter(this IFunctionConfiguration configuration, string name) {
            return configuration.WithParameter(name, PrimitiveTypes.Boolean());
        }

        public static IFunctionConfiguration WithDateTimeParameter(this IFunctionConfiguration configuration, string name) {
            return configuration.WithParameter(name, PrimitiveTypes.DateTime());
        }

        public static IFunctionConfiguration WithUnoundedParameter(this IFunctionConfiguration configuration, string name,
            SqlType type) {
            return configuration.WithParameter(config => config.Named(name).OfType(type).Unbounded());
        }

        public static IFunctionConfiguration ReturnsType(this IFunctionConfiguration configuration, SqlType type) {
            return configuration.ReturnsType(context => type);
        }

        public static IFunctionConfiguration ReturnsString(this IFunctionConfiguration configuration) {
            return configuration.ReturnsType(PrimitiveTypes.String());
        }

        public static IFunctionConfiguration ReturnsNumeric(this IFunctionConfiguration configuration) {
            return configuration.ReturnsType(PrimitiveTypes.Numeric());
        }

        public static IFunctionConfiguration ReturnsBoolean(this IFunctionConfiguration configuration) {
            return configuration.ReturnsType(PrimitiveTypes.Boolean());
        }

        public static IFunctionConfiguration ReturnsBinary(this IFunctionConfiguration configuration) {
            return configuration.ReturnsType(PrimitiveTypes.Binary());
        }

        public static IFunctionConfiguration ReturnsDateTime(this IFunctionConfiguration configuration) {
            return configuration.ReturnsType(PrimitiveTypes.DateTime());
        }
    }
}