Deveel.Data.Routines.SystemFunctionsProvider Class Reference

Inheritance diagram for Deveel.Data.Routines.SystemFunctionsProvider:

Classes
class	Cast
class	Count
class	DistinctCount

Protected Member Functions
override ObjectName	NormalizeName (ObjectName functionName)
override void	OnInit ()
Protected Member Functions inherited from Deveel.Data.Routines.FunctionProvider
	FunctionProvider ()
void	Register (FunctionInfo functionInfo, Func< InvokeContext, InvokeResult > body, Func< InvokeContext, SqlType > returnType)
void	Register (Func< IFunctionConfiguration, IFunctionConfiguration > config)
void	Register (IFunction function)
virtual void	Dispose (bool disposing)

Properties
override string	SchemaName [get]
Properties inherited from Deveel.Data.Routines.FunctionProvider
abstract string	SchemaName [get]
Properties inherited from Deveel.Data.Sql.Fluid.IConfigurationContext
string	SchemaName [get]

Private Member Functions
InvokeResult	Simple (InvokeContext context, Func< DataObject[], DataObject > func)
InvokeResult	Binary (InvokeContext context, Func< DataObject, DataObject, DataObject > func)
void	AddAggregateFunctions ()
void	AddSecurityFunctions ()
void	AddConversionFunctions ()
void	AddSequenceFunctions ()
void	AddMiscFunctions ()

Static Private Member Functions
static SqlType	ReturnType (SqlExpression exp, InvokeContext context)

Additional Inherited Members
Public Member Functions inherited from Deveel.Data.Routines.FunctionProvider
IFunction	ResolveFunction (Invoke invoke, IQuery query)
void	Dispose ()

Detailed Description

Definition at line 27 of file SystemFunctionsProvider.cs.

Member Function Documentation

void Deveel.Data.Routines.SystemFunctionsProvider.AddAggregateFunctions ( )

inlineprivate

Definition at line 51 of file SystemFunctionsProvider.cs.

                                             {
            Register(configuration => configuration
                .Named("aggor")
                .WithParameter(p => p.Named("args").Unbounded().OfDynamicType())
                .OfAggregateType()
                .WhenExecute(context => Binary(context, SystemFunctions.Or)));

            // COUNT
            Register(config => config.Named("count")
                .WithUnoundedParameter("args", Function.DynamicType)
                .WhenExecute(Count.Execute)
                .OfAggregateType()
                .ReturnsNumeric());

        }

void Deveel.Data.Routines.SystemFunctionsProvider.AddConversionFunctions ( )

inlineprivate

Definition at line 73 of file SystemFunctionsProvider.cs.

                                              {
            Register(config => config.Named("cast")
                .WithDynamicParameter("value")
                .WithStringParameter("destType")
                .WhenExecute(Cast.Execute)
                .ReturnsType(Cast.ReturnType));

            Register(config => config.Named("tonumber")
                .WithDynamicParameter("value")
                .WhenExecute(context => Simple(context, args => SystemFunctions.ToNumber(args[0])))
                .ReturnsNumeric());

            Register(config => config.Named("tostring")
                .WithDynamicParameter("value")
                .WhenExecute(context => Simple(context, args => SystemFunctions.ToString(args[0])))
                .ReturnsString());

            Register(config => config.Named("tobinary")
                .WithDynamicParameter("value")
                .WhenExecute(context => Simple(context, args => SystemFunctions.ToBinary(args[0])))
                .ReturnsType(PrimitiveTypes.Binary()));

            // Date Conversions
            Register(config => config.Named("todate")
                .WithStringParameter("value")
                .WhenExecute(context => Simple(context, objects => SystemFunctions.ToDate(objects[0])))
                .ReturnsType(PrimitiveTypes.Date()));

            Register(config => config.Named("todatetime")
                .WithStringParameter("value")
                .WhenExecute(context => Simple(context, args => SystemFunctions.ToDateTime(args[0])))
                .ReturnsType(PrimitiveTypes.DateTime()));

            Register(config => config.Named("totimestamp")
                .WithParameter(p => p.Named("value").OfStringType())
                .WhenExecute(context => Simple(context, args => SystemFunctions.ToTimeStamp(args[0])))
                .ReturnsType(PrimitiveTypes.TimeStamp()));
        }

void Deveel.Data.Routines.SystemFunctionsProvider.AddMiscFunctions ( )

inlineprivate

Definition at line 124 of file SystemFunctionsProvider.cs.

                                        {
            Register(config => config.Named("iif")
                .WithBooleanParameter("condition")
                .WithDynamicParameter("ifTrue")
                .WithDynamicParameter("ifFalse")
                .WhenExecute(context => SystemFunctions.Iif(context))
                .ReturnsType(Function.DynamicType));

            Register(config => config.Named("i_frule_convert")
            .WithDynamicParameter("rule")
            .WhenExecute(context => Simple(context, args => SystemFunctions.FRuleConvert(args[0])))
            .ReturnsType(context => {
                var argType = ReturnType(context.Arguments[0], context);
                return argType is StringType ? (SqlType)PrimitiveTypes.Numeric() : (SqlType)PrimitiveTypes.String();
            }));
        }

void Deveel.Data.Routines.SystemFunctionsProvider.AddSecurityFunctions ( )

inlineprivate

Definition at line 67 of file SystemFunctionsProvider.cs.

                                            {
            Register(config => config.Named("user")
                .WhenExecute(context => context.Result(SystemFunctions.User(context.Request)))
                .ReturnsString());
        }

void Deveel.Data.Routines.SystemFunctionsProvider.AddSequenceFunctions ( )

inlineprivate

Definition at line 112 of file SystemFunctionsProvider.cs.

                                            {
            Register(config => config.Named("uniquekey")
                .WithStringParameter("table")
                .WhenExecute(context => Simple(context, args => SystemFunctions.UniqueKey(context.Request, args[0])))
                .ReturnsNumeric());

            Register(config => config.Named("curval")
                .WithStringParameter("table")
                .WhenExecute(context => Simple(context, args => SystemFunctions.CurrentValue(context.Request, args[0])))
                .ReturnsNumeric());
        }

InvokeResult Deveel.Data.Routines.SystemFunctionsProvider.Binary ( InvokeContext  context, Func< DataObject, DataObject, DataObject >  func  )

inlineprivate

Definition at line 45 of file SystemFunctionsProvider.cs.

                                                                                                          {
            var evaluated = context.EvaluatedArguments;
            var value = func(evaluated[0], evaluated[1]);
            return context.Result(value);           
        }

override ObjectName Deveel.Data.Routines.SystemFunctionsProvider.NormalizeName ( ObjectName  functionName )

inlineprotectedvirtual

Reimplemented from Deveel.Data.Routines.FunctionProvider.

Definition at line 32 of file SystemFunctionsProvider.cs.

                                                                             {
            if (functionName.Parent == null)
                return new ObjectName(new ObjectName(SchemaName), functionName.Name);

            return base.NormalizeName(functionName);
        }

override void Deveel.Data.Routines.SystemFunctionsProvider.OnInit ( )

inlineprotectedvirtual

Implements Deveel.Data.Routines.FunctionProvider.

Definition at line 145 of file SystemFunctionsProvider.cs.

                                         {
            AddAggregateFunctions();

            AddConversionFunctions();
            AddSecurityFunctions();
            AddSequenceFunctions();

            AddMiscFunctions();
        }

static SqlType Deveel.Data.Routines.SystemFunctionsProvider.ReturnType ( SqlExpression  exp, InvokeContext  context  )

inlinestaticprivate

Definition at line 141 of file SystemFunctionsProvider.cs.

                                                                                    {
            return exp.ReturnType(context.Request, context.VariableResolver);
        }

InvokeResult Deveel.Data.Routines.SystemFunctionsProvider.Simple ( InvokeContext  context, Func< DataObject[], DataObject >  func  )

inlineprivate

Definition at line 39 of file SystemFunctionsProvider.cs.

                                                                                                {
            var evaluated = context.EvaluatedArguments;
            var value = func(evaluated);
            return context.Result(value);
        }

Property Documentation

override string Deveel.Data.Routines.SystemFunctionsProvider.SchemaName

get

Definition at line 28 of file SystemFunctionsProvider.cs.

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The documentation for this class was generated from the following file:

• /var/calculate/remote/distfiles/egit-src/deveeldb.git/src/deveeldb/Deveel.Data.Routines/SystemFunctionsProvider.cs