FunctionExtensions.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;
using Deveel.Data.Sql;
using Deveel.Data.Types;

namespace Deveel.Data.Routines {
    public static class FunctionExtensions {
        public static DataObject Execute(this IFunction function, Invoke request, IGroupResolver group,
            IVariableResolver resolver,
            IRequest query) {
            var execContext = new InvokeContext(request, function, resolver, group, query);
            var result = function.Execute(execContext);
            return result.ReturnValue;
        }

        public static SqlType ReturnType(this IFunction function, Invoke request, IRequest query, IVariableResolver resolver) {
            var execContext = new InvokeContext(request, function, resolver, null, query);
            return function.ReturnType(execContext);
        }
    }
}