An expression that holds a constant value. More...

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

Protected Member Functions
override void	GetData (SerializeData data)

Package Functions
	SqlConstantExpression (DataObject value)

Package Functions inherited from Deveel.Data.Sql.Expressions.SqlExpression
	SqlExpression ()
	Internally constructs the SQL expression, avoiding external implementations to be allowed to inherit this class. More...

	SqlExpression (ObjectData data)

Properties
override SqlExpressionType	ExpressionType `[get]`
	Gets the SQL expression type of SqlExpressionType.Constant More...

override bool	CanEvaluate `[get]`

DataObject	Value `[get, private set]`
	Gets the constant value of the expression. More...

Properties inherited from Deveel.Data.Sql.Expressions.SqlExpression
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
	SqlConstantExpression (ObjectData data)

Additional Inherited Members
Public Member Functions inherited from Deveel.Data.Sql.Expressions.SqlExpression
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 inherited from Deveel.Data.Sql.Expressions.SqlExpression
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)

Static Package Functions inherited from Deveel.Data.Sql.Expressions.SqlExpression
static void	Serialize (SqlExpression expression, BinaryWriter writer)

static SqlExpression	Deserialize (BinaryReader reader)

Detailed Description

An expression that holds a constant value.

As constant, this expression cannot be reduced, so that SqlExpression.CanEvaluate will always return false and the value of SqlExpression.Evaluate(EvaluateContext) will return the expression itself.

Definition at line 33 of file SqlConstantExpression.cs.

Constructor & Destructor Documentation

Deveel.Data.Sql.Expressions.SqlConstantExpression.SqlConstantExpression ( DataObject value )

inlinepackage

Definition at line 34 of file SqlConstantExpression.cs.

                                                          {
             Value = value;
         }

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

inlineprivate

Definition at line 38 of file SqlConstantExpression.cs.

             : base(data) {
             Value = data.GetValue<DataObject>("Value");
         }

Member Function Documentation

override void Deveel.Data.Sql.Expressions.SqlConstantExpression.GetData ( SerializeData data )

inlineprotectedvirtual

Reimplemented from Deveel.Data.Sql.Expressions.SqlExpression.

Definition at line 65 of file SqlConstantExpression.cs.

                                                             {
             data.SetValue("Value", typeof(DataObject), Value);
         }

Property Documentation

override bool Deveel.Data.Sql.Expressions.SqlConstantExpression.CanEvaluate

get

Definition at line 50 of file SqlConstantExpression.cs.

override SqlExpressionType Deveel.Data.Sql.Expressions.SqlConstantExpression.ExpressionType

get

Gets the SQL expression type of SqlExpressionType.Constant

Definition at line 46 of file SqlConstantExpression.cs.

DataObject Deveel.Data.Sql.Expressions.SqlConstantExpression.Value

getprivate set

Gets the constant value of the expression.

Definition at line 63 of file SqlConstantExpression.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/SqlConstantExpression.cs

Protected Member Functions

Package Functions

Properties

Private Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Property Documentation