Defines the base class for instances that represent SQL expression tree nodes. More...

Inheritance diagram for Deveel.Data.Sql.Expressions.SqlExpression:

Public Member Functions
virtual SqlExpression	Prepare (IExpressionPreparer preparer)

virtual SqlExpression	Accept (SqlExpressionVisitor visitor)

virtual SqlExpression	Evaluate (EvaluateContext context)
	When overridden by a derived class, this method evaluates the expression within the provided context. More...

SqlExpression	Evaluate ()
	Statically evaluates the expression, outside any context. More...

SqlExpression	Evaluate (IRequest context, IVariableResolver variables)

SqlExpression	Evaluate (IRequest context, IVariableResolver variables, IGroupResolver group)

override string	ToString ()

Static Public Member Functions
static SqlExpression	Parse (string s)
	Parses the given SQL string to an expression that can be evaluated. More...

static SqlExpression	Parse (string s, ISystemContext context)
	Parses the given SQL string to an expression that can be evaluated. More...

static SqlConstantExpression	Constant (object value)

static SqlConstantExpression	Constant (DataObject value)

static SqlCastExpression	Cast (SqlExpression value, SqlType destType)

static SqlFunctionCallExpression	FunctionCall (ObjectName functionName)

static SqlFunctionCallExpression	FunctionCall (ObjectName functionName, SqlExpression[] args)

static SqlFunctionCallExpression	FunctionCall (string functionName)

static SqlFunctionCallExpression	FunctionCall (string functionName, SqlExpression[] args)

static SqlReferenceExpression	Reference (ObjectName objectName)

static SqlVariableReferenceExpression	VariableReference (string varName)

static SqlConditionalExpression	Conditional (SqlExpression testExpression, SqlExpression ifTrue)

static SqlConditionalExpression	Conditional (SqlExpression testExpression, SqlExpression ifTrue, SqlExpression ifFalse)

static SqlBinaryExpression	Binary (SqlExpression left, SqlExpressionType expressionType, SqlExpression right)

static SqlBinaryExpression	Equal (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	NotEqual (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	Is (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	IsNot (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	SmallerOrEqualThan (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	GreaterOrEqualThan (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	SmallerThan (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	GreaterThan (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	Like (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	NotLike (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	And (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	Or (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	XOr (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	Add (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	Subtract (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	Multiply (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	Divide (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	Modulo (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	Any (SqlExpression left, SqlExpressionType anyType, SqlExpression right)

static SqlBinaryExpression	AnyEqual (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	AnyNotEqual (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	AnyGreaterThan (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	AnyGreaterOrEqualThan (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	AnySmallerThan (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	AnySmallerOrEqualThan (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	All (SqlExpression left, SqlExpressionType allType, SqlExpression right)

static SqlBinaryExpression	AllEqual (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	AllNotEqual (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	AllGreaterThan (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	AllGreaterOrEqualThan (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	AllSmallerThan (SqlExpression left, SqlExpression right)

static SqlBinaryExpression	AllSmallerOrEqualThan (SqlExpression left, SqlExpression right)

static SqlUnaryExpression	Unary (SqlExpressionType expressionType, SqlExpression operand)

static SqlUnaryExpression	Not (SqlExpression operand)

static SqlUnaryExpression	Negate (SqlExpression operand)

static SqlUnaryExpression	UnaryPlus (SqlExpression operand)

static SqlAssignExpression	Assign (SqlExpression reference, SqlExpression valueExpression)

static SqlTupleExpression	Tuple (SqlExpression[] expressions)

static SqlTupleExpression	Tuple (SqlExpression expr1, SqlExpression exp2)

static SqlTupleExpression	Tuple (SqlExpression expr1, SqlExpression expr2, SqlExpression expr3)

Protected Member Functions
virtual void	GetData (SerializeData data)

Package Functions
	SqlExpression ()
	Internally constructs the SQL expression, avoiding external implementations to be allowed to inherit this class. More...

	SqlExpression (ObjectData data)

Static Package Functions
static void	Serialize (SqlExpression expression, BinaryWriter writer)

static SqlExpression	Deserialize (BinaryReader reader)

Properties
abstract SqlExpressionType	ExpressionType `[get]`
	Gets the type code of this SQL expression. More...

virtual bool	CanEvaluate `[get]`
	Gets a value indicating whether the expression can be evaluated to another simpler one. More...

int	EvaluatePrecedence `[get, set]`

Private Member Functions
void ISerializable.	GetData (SerializeData data)

Private Attributes
int	precedence

Detailed Description

Defines the base class for instances that represent SQL expression tree nodes.

The architecture of the SQL Expression domain is to keep the implementation internal to the project, that means it will be possible to construct expressions only through this class, calling factory methods (for example Binary).

Definition at line 35 of file SqlExpression.cs.

Constructor & Destructor Documentation

Deveel.Data.Sql.Expressions.SqlExpression.SqlExpression ( )

inlinepackage

Internally constructs the SQL expression, avoiding external implementations to be allowed to inherit this class.

Definition at line 42 of file SqlExpression.cs.

42 {

43 }

Deveel.Data.Sql.Expressions.SqlExpression.SqlExpression ( ObjectData data )

inlinepackage

Definition at line 45 of file SqlExpression.cs.

45 {

46 }

Member Function Documentation

virtual SqlExpression Deveel.Data.Sql.Expressions.SqlExpression.Accept ( SqlExpressionVisitor visitor )

inlinevirtual

Definition at line 137 of file SqlExpression.cs.

                                                                           {
             return visitor.Visit(this);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Add	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 405 of file SqlExpression.cs.

                                                                                        {
             return new SqlBinaryExpression(left, SqlExpressionType.Add, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.All	(	SqlExpression	left,
		SqlExpressionType	allType,
		SqlExpression	right
	)

inlinestatic

Definition at line 472 of file SqlExpression.cs.

                                                                                                                   {
             if (allType == SqlExpressionType.Equal ||
                 allType == SqlExpressionType.AllEqual)
                 return AllEqual(left, right);
             if (allType == SqlExpressionType.NotEqual ||
                 allType == SqlExpressionType.AllNotEqual)
                 return AllNotEqual(left, right);
             if (allType == SqlExpressionType.GreaterThan ||
                 allType == SqlExpressionType.AllGreaterThan)
                 return AllGreaterThan(left, right);
             if (allType == SqlExpressionType.SmallerThan ||
                 allType == SqlExpressionType.AllSmallerThan)
                 return AllSmallerThan(left, right);
             if (allType == SqlExpressionType.GreaterOrEqualThan ||
                 allType == SqlExpressionType.AllGreaterOrEqualThan)
                 return AllGreaterOrEqualThan(left, right);
             if (allType == SqlExpressionType.SmallerOrEqualThan ||
                 allType == SqlExpressionType.AllSmallerOrEqualThan)
                 return AllSmallerOrEqualThan(left, right);
 
             throw new ArgumentException(String.Format("The type '{0}' cannot be part of an ALL operator.", allType));
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.AllEqual	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 495 of file SqlExpression.cs.

                                                                                             {
             return new SqlBinaryExpression(left, SqlExpressionType.AllEqual, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.AllGreaterOrEqualThan	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 507 of file SqlExpression.cs.

                                                                                                          {
             return new SqlBinaryExpression(left, SqlExpressionType.AllGreaterOrEqualThan, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.AllGreaterThan	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 503 of file SqlExpression.cs.

                                                                                                   {
             return new SqlBinaryExpression(left, SqlExpressionType.AllGreaterThan, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.AllNotEqual	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 499 of file SqlExpression.cs.

                                                                                                {
             return new SqlBinaryExpression(left, SqlExpressionType.AllNotEqual, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.AllSmallerOrEqualThan	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 515 of file SqlExpression.cs.

                                                                                                          {
             return new SqlBinaryExpression(left, SqlExpressionType.AllSmallerOrEqualThan, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.AllSmallerThan	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 511 of file SqlExpression.cs.

                                                                                                   {
             return new SqlBinaryExpression(left, SqlExpressionType.AllSmallerThan, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.And	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 393 of file SqlExpression.cs.

                                                                                        {
             return new SqlBinaryExpression(left, SqlExpressionType.And, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Any	(	SqlExpression	left,
		SqlExpressionType	anyType,
		SqlExpression	right
	)

inlinestatic

Definition at line 425 of file SqlExpression.cs.

                                                                                                                   {
             if (anyType == SqlExpressionType.Equal ||
                 anyType == SqlExpressionType.AnyEqual)
                 return AnyEqual(left, right);
             if (anyType == SqlExpressionType.NotEqual ||
                 anyType == SqlExpressionType.AnyNotEqual)
                 return AnyNotEqual(left, right);
             if (anyType == SqlExpressionType.AnyGreaterThan ||
                 anyType == SqlExpressionType.GreaterThan)
                 return AnyGreaterThan(left, right);
             if (anyType == SqlExpressionType.SmallerThan ||
                 anyType == SqlExpressionType.AnySmallerThan)
                 return AnySmallerThan(left, right);
             if (anyType == SqlExpressionType.GreaterOrEqualThan ||
                 anyType == SqlExpressionType.AnyGreaterOrEqualThan)
                 return AnyGreaterOrEqualThan(left, right);
             if (anyType == SqlExpressionType.GreaterOrEqualThan ||
                 anyType == SqlExpressionType.AnySmallerOrEqualThan)
                 return AnySmallerOrEqualThan(left, right);
 
             throw new ArgumentException(String.Format("The type '{0}' cannot be part of an ANY operator.", anyType));
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.AnyEqual	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 448 of file SqlExpression.cs.

                                                                                             {
             return new SqlBinaryExpression(left, SqlExpressionType.AnyEqual, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.AnyGreaterOrEqualThan	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 460 of file SqlExpression.cs.

                                                                                                          {
             return new SqlBinaryExpression(left, SqlExpressionType.AnyGreaterOrEqualThan, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.AnyGreaterThan	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 456 of file SqlExpression.cs.

                                                                                                   {
             return new SqlBinaryExpression(left, SqlExpressionType.AnyGreaterThan, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.AnyNotEqual	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 452 of file SqlExpression.cs.

                                                                                                {
             return new SqlBinaryExpression(left, SqlExpressionType.AnyNotEqual, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.AnySmallerOrEqualThan	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 468 of file SqlExpression.cs.

                                                                                                          {
             return new SqlBinaryExpression(left, SqlExpressionType.AnySmallerOrEqualThan, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.AnySmallerThan	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 464 of file SqlExpression.cs.

                                                                                                   {
             return new SqlBinaryExpression(left, SqlExpressionType.AnySmallerThan, right);
         }

static SqlAssignExpression Deveel.Data.Sql.Expressions.SqlExpression.Assign	(	SqlExpression	reference,
		SqlExpression	valueExpression
	)

inlinestatic

Definition at line 548 of file SqlExpression.cs.

                                                                                                          {
             return new SqlAssignExpression(reference, valueExpression);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Binary	(	SqlExpression	left,
		SqlExpressionType	expressionType,
		SqlExpression	right
	)

inlinestatic

Definition at line 304 of file SqlExpression.cs.

                                                                                                                             {
             if (expressionType == SqlExpressionType.Add)
                 return Add(left, right);
             if (expressionType == SqlExpressionType.Subtract)
                 return Subtract(left, right);
             if (expressionType == SqlExpressionType.Multiply)
                 return Multiply(left, right);
             if (expressionType == SqlExpressionType.Divide)
                 return Divide(left, right);
             if (expressionType == SqlExpressionType.Modulo)
                 return Modulo(left, right);
 
             if (expressionType == SqlExpressionType.Equal)
                 return Equal(left, right);
             if (expressionType == SqlExpressionType.NotEqual)
                 return NotEqual(left, right);
             if (expressionType == SqlExpressionType.Is)
                 return Is(left, right);
             if (expressionType == SqlExpressionType.IsNot)
                 return IsNot(left, right);
             if (expressionType == SqlExpressionType.GreaterThan)
                 return GreaterThan(left, right);
             if (expressionType == SqlExpressionType.GreaterOrEqualThan)
                 return GreaterOrEqualThan(left, right);
             if (expressionType == SqlExpressionType.SmallerThan)
                 return SmallerThan(left, right);
             if (expressionType == SqlExpressionType.SmallerOrEqualThan)
                 return SmallerOrEqualThan(left, right);
 
             if (expressionType == SqlExpressionType.Like)
                 return Like(left, right);
             if (expressionType == SqlExpressionType.NotLike)
                 return NotLike(left, right);
 
             if (expressionType == SqlExpressionType.And)
                 return And(left, right);
             if (expressionType == SqlExpressionType.Or)
                 return Or(left, right);
             if (expressionType == SqlExpressionType.XOr)
                 return XOr(left, right);
 
             if (expressionType.IsAny())
                 return Any(left, expressionType.SubQueryPlainType(), right);
             if (expressionType.IsAll())
                 return All(left, expressionType.SubQueryPlainType(), right);
 
             throw new ArgumentException(String.Format("Expression type {0} is not a Binary", expressionType));
         }

static SqlCastExpression Deveel.Data.Sql.Expressions.SqlExpression.Cast	(	SqlExpression	value,
		SqlType	destType
	)

inlinestatic

Definition at line 264 of file SqlExpression.cs.

                                                                                     {
             return new SqlCastExpression(value, destType);
         }

static SqlConditionalExpression Deveel.Data.Sql.Expressions.SqlExpression.Conditional	(	SqlExpression	testExpression,
		SqlExpression	ifTrue
	)

inlinestatic

Definition at line 294 of file SqlExpression.cs.

                                                                                                                {
             return Conditional(testExpression, ifTrue, null);
         }

static SqlConditionalExpression Deveel.Data.Sql.Expressions.SqlExpression.Conditional	(	SqlExpression	testExpression,
		SqlExpression	ifTrue,
		SqlExpression	ifFalse
	)

inlinestatic

Definition at line 298 of file SqlExpression.cs.

                                                                                                                                       {
             return new SqlConditionalExpression(testExpression, ifTrue, ifFalse);
         }

static SqlConstantExpression Deveel.Data.Sql.Expressions.SqlExpression.Constant ( object value )

inlinestatic

Definition at line 256 of file SqlExpression.cs.

                                                                    {
             return Constant(DataObject.Create(value));
         }

static SqlConstantExpression Deveel.Data.Sql.Expressions.SqlExpression.Constant ( DataObject value )

inlinestatic

Definition at line 260 of file SqlExpression.cs.

                                                                        {
             return new SqlConstantExpression(value);
         }

static SqlExpression Deveel.Data.Sql.Expressions.SqlExpression.Deserialize ( BinaryReader reader )

inlinestaticpackage

Definition at line 572 of file SqlExpression.cs.

                                                                        {
             var serializer = new BinarySerializer();
             return (SqlExpression) serializer.Deserialize(reader, typeof(SqlExpression));
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Divide	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 417 of file SqlExpression.cs.

                                                                                           {
             return new SqlBinaryExpression(left, SqlExpressionType.Divide, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Equal	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 353 of file SqlExpression.cs.

                                                                                          {
             return new SqlBinaryExpression(left, SqlExpressionType.Equal, right);
         }

virtual SqlExpression Deveel.Data.Sql.Expressions.SqlExpression.Evaluate ( EvaluateContext context )

inlinevirtual

When overridden by a derived class, this method evaluates the expression within the provided context.

Parameters

context The context for the evaluation of the expression, providing access to the system or to the execution context.

This method is only executed is CanEvaluate is true, and the override method can reduce this expression to a simpler form.

Returns

Returns a new

See also: SqlExpression

that is the result of the evaluation of this expression, within the context given.

Exceptions

ExpressionEvaluateException If any error occurred while evaluating the expression.

Definition at line 167 of file SqlExpression.cs.

                                                                        {
             var visitor = new ExpressionEvaluatorVisitor(context);
             return visitor.Visit(this);
         }

SqlExpression Deveel.Data.Sql.Expressions.SqlExpression.Evaluate ( )

inline

Statically evaluates the expression, outside any context.

This overload of the Evaluate logic provides an empty context to Evaluate(EvaluateContext), so that dynamic resolutions (eg. function calls, states assessments, etc.) will throw an exception.

Care must be taken when calling this method, that the expression tree represented does not contain any reference to dynamically resolved expressions (SqlFunctionCallExpression for example), otherwise its evaluation will result in an exception state.

Returns

Returns a new

See also: SqlExpression

that is the result of the static evaluation of this expression.

Exceptions

ExpressionEvaluateException If any error occurred while evaluating the expression.

Definition at line 194 of file SqlExpression.cs.

                                         {
             return Evaluate(null, null);
         }

SqlExpression Deveel.Data.Sql.Expressions.SqlExpression.Evaluate	(	IRequest	context,
		IVariableResolver	variables
	)

inline

Definition at line 198 of file SqlExpression.cs.

                                                                                      {
             return Evaluate(context, variables, null);
         }

SqlExpression Deveel.Data.Sql.Expressions.SqlExpression.Evaluate	(	IRequest	context,
		IVariableResolver	variables,
		IGroupResolver	group
	)

inline

Definition at line 202 of file SqlExpression.cs.

                                                                                                            {
             return Evaluate(new EvaluateContext(context, variables, group));
         }

static SqlFunctionCallExpression Deveel.Data.Sql.Expressions.SqlExpression.FunctionCall ( ObjectName functionName )

inlinestatic

Definition at line 268 of file SqlExpression.cs.

                                                                                       {
             return FunctionCall(functionName, new SqlExpression[0]);
         }

static SqlFunctionCallExpression Deveel.Data.Sql.Expressions.SqlExpression.FunctionCall	(	ObjectName	functionName,
		SqlExpression[]	args
	)

inlinestatic

Definition at line 272 of file SqlExpression.cs.

                                                                                                             {
             return new SqlFunctionCallExpression(functionName, args);
         }

static SqlFunctionCallExpression Deveel.Data.Sql.Expressions.SqlExpression.FunctionCall ( string functionName )

inlinestatic

Definition at line 276 of file SqlExpression.cs.

                                                                                   {
             return FunctionCall(functionName, new SqlExpression[0]);
         }

static SqlFunctionCallExpression Deveel.Data.Sql.Expressions.SqlExpression.FunctionCall	(	string	functionName,
		SqlExpression[]	args
	)

inlinestatic

Definition at line 280 of file SqlExpression.cs.

                                                                                                         {
             return FunctionCall(ObjectName.Parse(functionName), args);
         }

void ISerializable. Deveel.Data.Sql.Expressions.SqlExpression.GetData ( SerializeData data )

inlineprivate

Implements Deveel.Data.Serialization.ISerializable.

Definition at line 141 of file SqlExpression.cs.

                                                        {
             GetData(data);
         }

virtual void Deveel.Data.Sql.Expressions.SqlExpression.GetData ( SerializeData data )

inlineprotectedvirtual

Implements Deveel.Data.Serialization.ISerializable.

Definition at line 145 of file SqlExpression.cs.

145 {

146 }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.GreaterOrEqualThan	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 373 of file SqlExpression.cs.

                                                                                                       {
             return new SqlBinaryExpression(left, SqlExpressionType.GreaterOrEqualThan, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.GreaterThan	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 381 of file SqlExpression.cs.

                                                                                                {
             return new SqlBinaryExpression(left, SqlExpressionType.GreaterThan, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Is	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 361 of file SqlExpression.cs.

                                                                                       {
             return new SqlBinaryExpression(left, SqlExpressionType.Is, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.IsNot	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 365 of file SqlExpression.cs.

                                                                                          {
             return new SqlBinaryExpression(left, SqlExpressionType.IsNot, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Like	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 385 of file SqlExpression.cs.

                                                                                         {
             return new SqlBinaryExpression(left, SqlExpressionType.Like, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Modulo	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 421 of file SqlExpression.cs.

                                                                                           {
             return new SqlBinaryExpression(left, SqlExpressionType.Modulo, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Multiply	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 413 of file SqlExpression.cs.

                                                                                             {
             return new SqlBinaryExpression(left, SqlExpressionType.Multiply, right);
         }

static SqlUnaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Negate ( SqlExpression operand )

inlinestatic

Definition at line 538 of file SqlExpression.cs.

                                                                        {
             return new SqlUnaryExpression(SqlExpressionType.Negate, operand);
         }

static SqlUnaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Not ( SqlExpression operand )

inlinestatic

Definition at line 534 of file SqlExpression.cs.

                                                                     {
             return new SqlUnaryExpression(SqlExpressionType.Not, operand);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.NotEqual	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 357 of file SqlExpression.cs.

                                                                                             {
             return new SqlBinaryExpression(left, SqlExpressionType.NotEqual, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.NotLike	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 389 of file SqlExpression.cs.

                                                                                            {
             return new SqlBinaryExpression(left, SqlExpressionType.NotLike, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Or	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 397 of file SqlExpression.cs.

                                                                                       {
             return new SqlBinaryExpression(left, SqlExpressionType.Or, right);
         }

static SqlExpression Deveel.Data.Sql.Expressions.SqlExpression.Parse ( string s )

inlinestatic

Parses the given SQL string to an expression that can be evaluated.

Parameters

s	The string to parse.

Returns

Returns an instance of

See also: SqlExpression

that represents the given SQL string parsed.

Definition at line 219 of file SqlExpression.cs.

                                                     {
             return Parse(s, null);
         }

static SqlExpression Deveel.Data.Sql.Expressions.SqlExpression.Parse	(	string	s,
		ISystemContext	context
	)

inlinestatic

Parses the given SQL string to an expression that can be evaluated.

Parameters

s	The string to parse.
context

Returns

Returns an instance of

See also: SqlExpression

that represents the given SQL string parsed.

Definition at line 232 of file SqlExpression.cs.

                                                                             {
             try {
                 // TODO: Get the expression compiler from the context
                 var compiler = SqlParsers.Expression;
                 var result = compiler.Parse(s);
 
                 if (result.HasErrors)
                     throw new SqlParseException();
 
                 var expNode = result.RootNode as IExpressionNode;
                 if (expNode == null)
                     throw new SqlExpressionException(ExpressionErrorCodes.CannotParse, "The parse of the text did not result into an expression.");
 
                 return ExpressionBuilder.Build(expNode);
             } catch (SqlParseException ex) {
                 throw new SqlExpressionException(ExpressionErrorCodes.CannotParse,
                     "Could not parse input expression: see inner exception for details.", ex);
             }
         }

virtual SqlExpression Deveel.Data.Sql.Expressions.SqlExpression.Prepare ( IExpressionPreparer preparer )

inlinevirtual

Definition at line 132 of file SqlExpression.cs.

                                                                            {
             var visitor = new PreparerVisitor(preparer);
             return visitor.Visit(this);
         }

static SqlReferenceExpression Deveel.Data.Sql.Expressions.SqlExpression.Reference ( ObjectName objectName )

inlinestatic

Definition at line 284 of file SqlExpression.cs.

                                                                               {
             return new SqlReferenceExpression(objectName);
         }

static void Deveel.Data.Sql.Expressions.SqlExpression.Serialize	(	SqlExpression	expression,
		BinaryWriter	writer
	)

inlinestaticpackage

Definition at line 567 of file SqlExpression.cs.

                                                                                       {
             var serializer = new BinarySerializer();
             serializer.Serialize(writer, expression);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.SmallerOrEqualThan	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 369 of file SqlExpression.cs.

                                                                                                       {
             return new SqlBinaryExpression(left, SqlExpressionType.SmallerOrEqualThan, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.SmallerThan	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 377 of file SqlExpression.cs.

                                                                                                {
             return new SqlBinaryExpression(left, SqlExpressionType.SmallerThan, right);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Subtract	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 409 of file SqlExpression.cs.

                                                                                             {
             return new SqlBinaryExpression(left, SqlExpressionType.Subtract, right);
         }

override string Deveel.Data.Sql.Expressions.SqlExpression.ToString ( )

inline

Definition at line 206 of file SqlExpression.cs.

                                           {
             var builder = new ExpressionStringBuilder();
             return builder.ToSqlString(this);
         }

static SqlTupleExpression Deveel.Data.Sql.Expressions.SqlExpression.Tuple ( SqlExpression[] expressions )

inlinestatic

Definition at line 553 of file SqlExpression.cs.

                                                                             {
             return new SqlTupleExpression(expressions);
         }

static SqlTupleExpression Deveel.Data.Sql.Expressions.SqlExpression.Tuple	(	SqlExpression	expr1,
		SqlExpression	exp2
	)

inlinestatic

Definition at line 557 of file SqlExpression.cs.

                                                                                         {
             return Tuple(new[] {expr1, exp2});
         }

static SqlTupleExpression Deveel.Data.Sql.Expressions.SqlExpression.Tuple	(	SqlExpression	expr1,
		SqlExpression	expr2,
		SqlExpression	expr3
	)

inlinestatic

Definition at line 561 of file SqlExpression.cs.

                                                                                                               {
             return Tuple(new[] {expr1, expr2, expr3});
         }

static SqlUnaryExpression Deveel.Data.Sql.Expressions.SqlExpression.Unary	(	SqlExpressionType	expressionType,
		SqlExpression	operand
	)

inlinestatic

Definition at line 523 of file SqlExpression.cs.

                                                                                                         {
             if (expressionType == SqlExpressionType.UnaryPlus)
                 return UnaryPlus(operand);
             if (expressionType == SqlExpressionType.Negate)
                 return Negate(operand);
             if (expressionType == SqlExpressionType.Not)
                 return Not(operand);
 
             throw new ArgumentException(String.Format("Expression Type {0} is not an Unary.", expressionType));
         }

static SqlUnaryExpression Deveel.Data.Sql.Expressions.SqlExpression.UnaryPlus ( SqlExpression operand )

inlinestatic

Definition at line 542 of file SqlExpression.cs.

                                                                           {
             return new SqlUnaryExpression(SqlExpressionType.UnaryPlus, operand);
         }

static SqlVariableReferenceExpression Deveel.Data.Sql.Expressions.SqlExpression.VariableReference ( string varName )

inlinestatic

Definition at line 288 of file SqlExpression.cs.

                                                                                        {
             return new SqlVariableReferenceExpression(varName);
         }

static SqlBinaryExpression Deveel.Data.Sql.Expressions.SqlExpression.XOr	(	SqlExpression	left,
		SqlExpression	right
	)

inlinestatic

Definition at line 401 of file SqlExpression.cs.

                                                                                        {
             return new SqlBinaryExpression(left, SqlExpressionType.XOr, right);
         }

Member Data Documentation

int Deveel.Data.Sql.Expressions.SqlExpression.precedence

private

Definition at line 36 of file SqlExpression.cs.

Property Documentation

virtual bool Deveel.Data.Sql.Expressions.SqlExpression.CanEvaluate

get

Gets a value indicating whether the expression can be evaluated to another simpler one.

See also: Evaluate(EvaluateContext)

Definition at line 58 of file SqlExpression.cs.

int Deveel.Data.Sql.Expressions.SqlExpression.EvaluatePrecedence

getsetpackage

Definition at line 62 of file SqlExpression.cs.

abstract SqlExpressionType Deveel.Data.Sql.Expressions.SqlExpression.ExpressionType

get

Gets the type code of this SQL expression.

Definition at line 51 of file SqlExpression.cs.

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

/var/calculate/remote/distfiles/egit-src/deveeldb.git/src/deveeldb/Deveel.Data.Sql.Expressions/SqlExpression.cs

Public Member Functions

Static Public Member Functions

Protected Member Functions

Package Functions

Static Package Functions

Properties

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

Property Documentation