KexiDB::BaseExpr Class Reference

#include <expression.h>

Inheritance diagram for KexiDB::BaseExpr:

Public Types
typedef TQPtrList< BaseExpr >	List
typedef TQPtrListIterator< BaseExpr >	ListIterator

Public Member Functions
	BaseExpr (int token)
virtual BaseExpr *	copy () const =0
int	token () const
virtual Field::Type	type ()
BaseExpr *	parent () const
virtual void	setParent (BaseExpr *p)
virtual bool	validate (ParseInfo &parseInfo)
virtual TQString	toString (QuerySchemaParameterValueListIterator *params=0)=0
virtual void	getQueryParameters (QuerySchemaParameterList &params)=0
void	debug ()
virtual TQString	debugString ()
TQString	tokenToDebugString ()
virtual TQString	tokenToString ()
int	exprClass () const
NArgExpr *	toNArg ()
UnaryExpr *	toUnary ()
BinaryExpr *	toBinary ()
ConstExpr *	toConst ()
VariableExpr *	toVariable ()
FunctionExpr *	toFunction ()
QueryParameterExpr *	toQueryParameter ()

Static Public Member Functions
static TQString	tokenToDebugString (int token)

Protected Attributes
int	m_cl
BaseExpr *	m_par
int	m_token

Detailed Description

A base class for all expressions.

Definition at line 66 of file expression.h.

Member Typedef Documentation

List

typedef TQPtrList<BaseExpr> KexiDB::BaseExpr::List

Definition at line 69 of file expression.h.

ListIterator

typedef TQPtrListIterator<BaseExpr> KexiDB::BaseExpr::ListIterator

Definition at line 70 of file expression.h.

Constructor & Destructor Documentation

BaseExpr()

BaseExpr::BaseExpr

(

int

token

)

Definition at line 67 of file expression.cpp.

~BaseExpr()

BaseExpr::~BaseExpr ( )

virtual

Definition at line 74 of file expression.cpp.

Member Function Documentation

copy()

virtual BaseExpr * KexiDB::BaseExpr::copy ( ) const

pure virtual

Returns

a deep copy of this object.

Todo

a nonpointer will be returned here when we move to implicit data sharing

Implemented in KexiDB::BinaryExpr, KexiDB::ConstExpr, KexiDB::FunctionExpr, KexiDB::NArgExpr, KexiDB::QueryParameterExpr, KexiDB::UnaryExpr, and KexiDB::VariableExpr.

debug()

void KexiDB::BaseExpr::debug ( )

inline

Definition at line 98 of file expression.h.

debugString()

TQString BaseExpr::debugString ( )

virtual

Definition at line 83 of file expression.cpp.

exprClass()

int KexiDB::BaseExpr::exprClass ( ) const

inline

Definition at line 111 of file expression.h.

getQueryParameters()

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::BinaryExpr, KexiDB::ConstExpr, KexiDB::FunctionExpr, KexiDB::NArgExpr, KexiDB::QueryParameterExpr, KexiDB::UnaryExpr, and KexiDB::VariableExpr.

parent()

BaseExpr * KexiDB::BaseExpr::parent ( ) const

inline

Definition at line 83 of file expression.h.

setParent()

virtual void KexiDB::BaseExpr::setParent ( BaseExpr * p )

inlinevirtual

Definition at line 85 of file expression.h.

toBinary()

BinaryExpr * BaseExpr::toBinary

(

)

Definition at line 116 of file expression.cpp.

toConst()

ConstExpr * BaseExpr::toConst

(

)

Definition at line 117 of file expression.cpp.

toFunction()

FunctionExpr * BaseExpr::toFunction

(

)

Definition at line 119 of file expression.cpp.

token()

int KexiDB::BaseExpr::token ( ) const

inline

Definition at line 79 of file expression.h.

tokenToDebugString() [1/2]

TQString 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 104 of file expression.h.

tokenToDebugString() [2/2]

TQString BaseExpr::tokenToDebugString ( int token )

static

Definition at line 96 of file expression.cpp.

tokenToString()

TQString BaseExpr::tokenToString ( )

virtual

Returns

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

Reimplemented in KexiDB::BinaryExpr.

Definition at line 107 of file expression.cpp.

toNArg()

NArgExpr * BaseExpr::toNArg

(

)

Convenience type casts.

Definition at line 114 of file expression.cpp.

toQueryParameter()

QueryParameterExpr * BaseExpr::toQueryParameter

(

)

Definition at line 120 of file expression.cpp.

toString()

virtual TQString 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::BinaryExpr, KexiDB::ConstExpr, KexiDB::FunctionExpr, KexiDB::NArgExpr, KexiDB::QueryParameterExpr, KexiDB::UnaryExpr, and KexiDB::VariableExpr.

toUnary()

UnaryExpr * BaseExpr::toUnary

(

)

Definition at line 115 of file expression.cpp.

toVariable()

VariableExpr * BaseExpr::toVariable

(

)

Definition at line 118 of file expression.cpp.

type()

Field::Type BaseExpr::type ( )

virtual

Reimplemented in KexiDB::VariableExpr.

Definition at line 78 of file expression.cpp.

validate()

bool BaseExpr::validate ( ParseInfo & parseInfo )

virtual

Reimplemented in KexiDB::BinaryExpr, KexiDB::UnaryExpr, and KexiDB::VariableExpr.

Definition at line 88 of file expression.cpp.

Member Data Documentation

m_cl

int KexiDB::BaseExpr::m_cl

protected

class

Definition at line 123 of file expression.h.

m_par

BaseExpr* KexiDB::BaseExpr::m_par

protected

parent expression

Definition at line 124 of file expression.h.

m_token

int KexiDB::BaseExpr::m_token

protected

Definition at line 125 of file expression.h.

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

• expression.h
• expression.cpp