KexiDB::BaseExpr Class Reference

#include <expression.h>

Inheritance diagram for KexiDB::BaseExpr:

Detailed Description

A base class for all expressions.

Definition at line 62 of file expression.h.

Public Types

typedef QPtrList< BaseExpr > List

typedef QPtrListIterator<
BaseExpr > ListIterator

Public Member Functions

BaseExpr (int token)

virtual ~BaseExpr ()

int token () const

virtual Field::Type type ()

BaseExpr * parent () const

virtual void setParent (BaseExpr *p)

virtual bool validate (ParseInfo &parseInfo)

virtual QString toString (QuerySchemaParameterValueListIterator *params=0)=0

virtual void getQueryParameters (QuerySchemaParameterList &params)=0

void debug ()

virtual QString debugString ()

QString tokenToDebugString ()

virtual QString tokenToString ()

int exprClass () const

NArgExpr * toNArg ()

UnaryExpr * toUnary ()

BinaryExpr * toBinary ()

ConstExpr * toConst ()

VariableExpr * toVariable ()

FunctionExpr * toFunction ()

QueryParameterExpr * toQueryParameter ()

Static Public Member Functions

static QString tokenToDebugString (int token)

Protected Attributes

int m_cl

class

BaseExpr * m_par

parent expression

int m_token

Member Typedef Documentation

typedef QPtrList<BaseExpr> KexiDB::BaseExpr::List

Definition at line 65 of file expression.h.

typedef QPtrListIterator<BaseExpr> KexiDB::BaseExpr::ListIterator

Definition at line 66 of file expression.h.

Constructor & Destructor Documentation

BaseExpr::BaseExpr ( int token )

Definition at line 67 of file expression.cpp.

BaseExpr::~BaseExpr ( ) [virtual]

Definition at line 75 of file expression.cpp.

Member Function Documentation

void KexiDB::BaseExpr::debug ( ) [inline]

Definition at line 90 of file expression.h.
References KexiDBDbg.

QString BaseExpr::debugString ( ) [virtual]

Reimplemented in KexiDB::NArgExpr, KexiDB::UnaryExpr, KexiDB::BinaryExpr, KexiDB::ConstExpr, KexiDB::QueryParameterExpr, KexiDB::VariableExpr, and KexiDB::FunctionExpr.
Definition at line 84 of file expression.cpp.
References KexiDB::Driver::defaultSQLTypeName(), m_token, and type().
Referenced by KexiQueryDesignerGuiEditor::buildSchema(), KexiDB::Field::debugString(), KexiDB::BinaryExpr::debugString(), and KexiDB::UnaryExpr::debugString().

int KexiDB::BaseExpr::exprClass ( ) const [inline]

Definition at line 103 of file expression.h.
Referenced by addColumn(), buildSelectQuery(), and KexiQueryDesignerGuiEditor::showFieldsOrRelationsForQueryInternal().

virtual void KexiDB::BaseExpr::getQueryParameters ( QuerySchemaParameterList & params ) [pure virtual]

Collects query parameters (messages and types) reculsively and saves them to params. The leaf nodes are objects of QueryParameterExpr class.
Implemented in KexiDB::NArgExpr, KexiDB::UnaryExpr, KexiDB::BinaryExpr, KexiDB::ConstExpr, KexiDB::QueryParameterExpr, KexiDB::VariableExpr, and KexiDB::FunctionExpr.
Referenced by KexiDB::BinaryExpr::getQueryParameters(), and KexiDB::UnaryExpr::getQueryParameters().

BaseExpr* KexiDB::BaseExpr::parent ( ) const [inline]

Definition at line 75 of file expression.h.
Referenced by KexiQueryDesignerGuiEditor::showFieldsOrRelationsForQueryInternal().

virtual void KexiDB::BaseExpr::setParent ( BaseExpr * p ) [inline, virtual]

Definition at line 77 of file expression.h.
Referenced by KexiDB::BinaryExpr::BinaryExpr(), KexiDB::FunctionExpr::FunctionExpr(), and KexiDB::UnaryExpr::UnaryExpr().

BinaryExpr * BaseExpr::toBinary ( )

Definition at line 117 of file expression.cpp.
Referenced by buildSelectQuery(), and KexiQueryDesignerGuiEditor::showFieldsOrRelationsForQueryInternal().

ConstExpr * BaseExpr::toConst ( )

Definition at line 118 of file expression.cpp.

FunctionExpr * BaseExpr::toFunction ( )

Definition at line 120 of file expression.cpp.

int KexiDB::BaseExpr::token ( ) const [inline]

Definition at line 71 of file expression.h.
Referenced by buildSelectQuery(), and KexiQueryDesignerGuiEditor::showFieldsOrRelationsForQueryInternal().

QString BaseExpr::tokenToDebugString ( int token ) [static]

Definition at line 97 of file expression.cpp.
References safe_tname.

QString KexiDB::BaseExpr::tokenToDebugString ( ) [inline]

Returns:
single character if the token is < 256 or token name, e.g. LESS_OR_EQUAL (for debugging).

Definition at line 96 of file expression.h.
Referenced by KexiDB::ConstExpr::debugString(), KexiDB::BinaryExpr::debugString(), KexiDB::UnaryExpr::debugString(), KexiDB::BinaryExpr::tokenToString(), tokenToString(), and KexiDB::UnaryExpr::toString().

QString BaseExpr::tokenToString ( ) [virtual]

Returns:
string for token, like "<=" or ">"

Reimplemented in KexiDB::BinaryExpr.
Definition at line 108 of file expression.cpp.
References m_token, and tokenToDebugString().

NArgExpr * BaseExpr::toNArg ( )

Convenience type casts.
Definition at line 115 of file expression.cpp.

QueryParameterExpr * BaseExpr::toQueryParameter ( )

Definition at line 121 of file expression.cpp.
Referenced by KexiDB::BinaryExpr::validate(), and KexiDB::UnaryExpr::validate().

virtual QString KexiDB::BaseExpr::toString ( QuerySchemaParameterValueListIterator * params = 0 ) [pure virtual]

Returns:
string as a representation of this expression element by running recursive calls. param, if not 0, points to a list item containing value of a query parameter (used in QueryParameterExpr).

Implemented in KexiDB::NArgExpr, KexiDB::UnaryExpr, KexiDB::BinaryExpr, KexiDB::ConstExpr, KexiDB::QueryParameterExpr, KexiDB::VariableExpr, and KexiDB::FunctionExpr.
Referenced by buildSelectQuery(), KexiQueryDesignerGuiEditor::showFieldsOrRelationsForQueryInternal(), KexiQueryDesignerGuiEditor::slotBeforeCellChanged(), and KexiDB::UnaryExpr::toString().

UnaryExpr * BaseExpr::toUnary ( )

Definition at line 116 of file expression.cpp.
Referenced by KexiQueryDesignerGuiEditor::showFieldsOrRelationsForQueryInternal().

VariableExpr * BaseExpr::toVariable ( )

Definition at line 119 of file expression.cpp.
Referenced by addColumn(), buildSelectQuery(), and KexiQueryDesignerGuiEditor::parseExpressionString().

Field::Type BaseExpr::type ( ) [virtual]

Reimplemented in KexiDB::UnaryExpr, KexiDB::BinaryExpr, KexiDB::ConstExpr, KexiDB::QueryParameterExpr, KexiDB::VariableExpr, and KexiDB::FunctionExpr.
Definition at line 79 of file expression.cpp.
References KexiDB::Field::InvalidType.
Referenced by debugString(), KexiDB::Field::type(), KexiDB::BinaryExpr::type(), KexiDB::UnaryExpr::type(), and KexiDB::BinaryExpr::validate().

bool BaseExpr::validate ( ParseInfo & parseInfo ) [virtual]

Reimplemented in KexiDB::NArgExpr, KexiDB::UnaryExpr, KexiDB::BinaryExpr, KexiDB::ConstExpr, KexiDB::QueryParameterExpr, KexiDB::VariableExpr, and KexiDB::FunctionExpr.
Definition at line 89 of file expression.cpp.
Referenced by addColumn(), KexiDB::FunctionExpr::validate(), KexiDB::VariableExpr::validate(), KexiDB::ConstExpr::validate(), KexiDB::BinaryExpr::validate(), KexiDB::UnaryExpr::validate(), and KexiDB::NArgExpr::validate().

Member Data Documentation

int KexiDB::BaseExpr::m_cl [protected]

class

Definition at line 115 of file expression.h.
Referenced by KexiDB::BinaryExpr::BinaryExpr(), KexiDB::ConstExpr::ConstExpr(), KexiDB::BinaryExpr::debugString(), KexiDB::NArgExpr::debugString(), KexiDB::FunctionExpr::FunctionExpr(), KexiDB::NArgExpr::NArgExpr(), KexiDB::QueryParameterExpr::QueryParameterExpr(), KexiDB::UnaryExpr::UnaryExpr(), and KexiDB::VariableExpr::VariableExpr().

BaseExpr* KexiDB::BaseExpr::m_par [protected]

parent expression

Definition at line 116 of file expression.h.

int KexiDB::BaseExpr::m_token [protected]

Definition at line 117 of file expression.h.
Referenced by debugString(), KexiDB::BinaryExpr::tokenToString(), tokenToString(), KexiDB::ConstExpr::toString(), KexiDB::UnaryExpr::toString(), KexiDB::ConstExpr::type(), KexiDB::BinaryExpr::type(), and KexiDB::UnaryExpr::type().

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


Public Types
typedef QPtrList< BaseExpr >	List
typedef QPtrListIterator< BaseExpr >	ListIterator
Public Member Functions
	BaseExpr (int token)
virtual	~BaseExpr ()
int	token () const
virtual Field::Type	type ()
BaseExpr *	parent () const
virtual void	setParent (BaseExpr *p)
virtual bool	validate (ParseInfo &parseInfo)
virtual QString	toString (QuerySchemaParameterValueListIterator *params=0)=0
virtual void	getQueryParameters (QuerySchemaParameterList &params)=0
void	debug ()
virtual QString	debugString ()
QString	tokenToDebugString ()
virtual QString	tokenToString ()
int	exprClass () const
NArgExpr *	toNArg ()
UnaryExpr *	toUnary ()
BinaryExpr *	toBinary ()
ConstExpr *	toConst ()
VariableExpr *	toVariable ()
FunctionExpr *	toFunction ()
QueryParameterExpr *	toQueryParameter ()
Static Public Member Functions
static QString	tokenToDebugString (int token)
Protected Attributes
int	m_cl
	class
BaseExpr *	m_par
	parent expression
int	m_token

Kexi API Documentation (2.0 alpha)

KexiDB::BaseExpr Class Reference

Detailed Description

Public Types

Public Member Functions

Static Public Member Functions

Protected Attributes

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation