KDbUnaryExpression Class Reference

#include <KDbExpression.h>

Inheritance diagram for KDbUnaryExpression:

Public Member Functions
	KDbUnaryExpression ()
	KDbUnaryExpression (const KDbUnaryExpression &expr)
	KDbUnaryExpression (KDbToken token, const KDbExpression &arg)
KDbExpression	arg () const
void	setArg (const KDbExpression &arg)
Public Member Functions inherited from KDbExpression
	KDbExpression ()
KDbExpression	clone () const
QDebug	debug (QDebug dbg, KDb::ExpressionCallStack *callStack) const
KDb::ExpressionClass	expressionClass () const
void	getQueryParameters (QList< KDbQuerySchemaParameter > *params)
bool	isBinary () const
bool	isConst () const
bool	isDateTimeType () const
bool	isFPNumericType () const
bool	isFunction () const
bool	isIntegerType () const
bool	isNArg () const
bool	isNull () const
bool	isNumericType () const
bool	isQueryParameter () const
bool	isTextType () const
bool	isUnary () const
bool	isValid () const
bool	isVariable () const
bool	operator!= (const KDbExpression &e) const
bool	operator== (const KDbExpression &e) const
KDbExpression	parent () const
void	setExpressionClass (KDb::ExpressionClass aClass)
void	setToken (KDbToken token)
KDbBinaryExpression	toBinary () const
KDbConstExpression	toConst () const
KDbFunctionExpression	toFunction () const
KDbToken	token () const
KDbNArgExpression	toNArg () const
KDbQueryParameterExpression	toQueryParameter () const
KDbEscapedString	toString (const KDbDriver *driver, KDbQuerySchemaParameterValueListIterator *params=nullptr, KDb::ExpressionCallStack *callStack=nullptr) const
KDbUnaryExpression	toUnary () const
KDbVariableExpression	toVariable () const
KDbField::Type	type () const
bool	validate (KDbParseInfo *parseInfo)

Protected Member Functions
	KDbUnaryExpression (const ExplicitlySharedExpressionDataPointer &ptr)
	KDbUnaryExpression (KDbExpressionData *data)
Protected Member Functions inherited from KDbExpression
	KDbExpression (const ExplicitlySharedExpressionDataPointer &ptr)
	KDbExpression (KDbExpressionData *data)
	KDbExpression (KDbExpressionData *data, KDb::ExpressionClass aClass, KDbToken token)
void	appendChild (const ExplicitlySharedExpressionDataPointer &child)
void	appendChild (const KDbExpression &child)
bool	checkBeforeInsert (const ExplicitlySharedExpressionDataPointer &child)
QList< ExplicitlySharedExpressionDataPointer >	children () const
int	indexOfChild (const KDbExpression &child, int from=0) const
void	insertChild (int i, const KDbExpression &child)
void	insertEmptyChild (int i)
int	lastIndexOfChild (const KDbExpression &child, int from=-1) const
void	prependChild (const KDbExpression &child)
bool	removeChild (const KDbExpression &child)
void	removeChild (int i)
void	setLeftOrRight (const KDbExpression &right, int index)
KDbExpression	takeChild (int i)

Additional Inherited Members
Static Public Member Functions inherited from KDbExpression
static KDb::ExpressionClass	classForToken (KDbToken token)
Protected Attributes inherited from KDbExpression
ExplicitlySharedExpressionDataPointer	d

Detailed Description

The KDbUnaryExpression class represents unary expression (with a single argument).

operation: + - NOT (or !) ~ "IS NULL" "IS NOT NULL"

Definition at line 300 of file KDbExpression.h.

Constructor & Destructor Documentation

KDbUnaryExpression() [1/3]

KDbUnaryExpression::KDbUnaryExpression

(

)

Constructs a null unary expression.

See also

KDbExpression::isNull()

Definition at line 186 of file KDbUnaryExpression.cpp.

KDbUnaryExpression() [2/3]

KDbUnaryExpression::KDbUnaryExpression	(	KDbToken	token,
		const KDbExpression &	arg
	)

Constructs unary expression with token token and argument arg.

Definition at line 192 of file KDbUnaryExpression.cpp.

KDbUnaryExpression() [3/3]

KDbUnaryExpression::KDbUnaryExpression

(

const KDbUnaryExpression &

expr

)

Constructs a copy of other unary expression expr. Resulting object is not a deep copy but rather a reference to the object expr.

Definition at line 204 of file KDbUnaryExpression.cpp.

Member Function Documentation

arg()

KDbExpression KDbUnaryExpression::arg

(

)

const

Returns

expression that is argument for this unary expression

Definition at line 218 of file KDbUnaryExpression.cpp.

setArg()

void KDbUnaryExpression::setArg

(

const KDbExpression &

arg

)

Sets expression argument expr for this unary expression.

Definition at line 223 of file KDbUnaryExpression.cpp.

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

• KDbExpression.h
• KDbUnaryExpression.cpp