Kexi API Documentation (2.0 alpha)
	Overview Class Hierarchy Classes Classes (annotated) Members Source Files

KexiDB::BinaryExpr Class Reference

#include <expression.h>

Inheritance diagram for KexiDB::BinaryExpr:

List of all members.

---

Detailed Description

A base class for binary operation

• arithmetic operations: + - / * % << >> & | ||
• relational operations: = (or ==) < > <= >= <> (or !=) LIKE IN 'SIMILAR TO' 'NOT SIMILAR TO'
• logical operations: OR (or ||) AND (or &&) XOR
• SpecialBinary "pseudo operators": e.g. "f1 f2" : token == 0 e.g. "f1 AS f2" : token == AS

Definition at line 161 of file expression.h.

Public Member Functions
	BinaryExpr (int aClass, BaseExpr *left_expr, int token, BaseExpr *right_expr)
virtual	~BinaryExpr ()
virtual Field::Type	type ()
virtual QString	debugString ()
virtual QString	toString (QuerySchemaParameterValueListIterator *params=0)
virtual void	getQueryParameters (QuerySchemaParameterList &params)
BaseExpr *	left () const
BaseExpr *	right () const
virtual bool	validate (ParseInfo &parseInfo)
virtual QString	tokenToString ()
Public Attributes
BaseExpr *	m_larg
BaseExpr *	m_rarg

---

Constructor & Destructor Documentation

BinaryExpr::BinaryExpr (  int  aClass, BaseExpr *  left_expr, int  token, BaseExpr *  right_expr )

Definition at line 304 of file expression.cpp. References KexiDB::BaseExpr::m_cl, m_larg, m_rarg, and KexiDB::BaseExpr::setParent().

BinaryExpr::~BinaryExpr (   )  [virtual]

Definition at line 316 of file expression.cpp. References m_larg, and m_rarg.

---

Member Function Documentation

QString BinaryExpr::debugString (   )  [virtual]

Reimplemented from KexiDB::BaseExpr. Definition at line 379 of file expression.cpp. References KexiDB::BaseExpr::debugString(), KexiDB::Driver::defaultSQLTypeName(), KexiDB::exprClassName(), KexiDB::BaseExpr::m_cl, m_larg, m_rarg, KexiDB::BaseExpr::tokenToDebugString(), and type().

void BinaryExpr::getQueryParameters (  QuerySchemaParameterList &  params  )  [virtual]

Collects query parameters (messages and types) reculsively and saves them to params. The leaf nodes are objects of QueryParameterExpr class. Implements KexiDB::BaseExpr. Definition at line 426 of file expression.cpp. References KexiDB::BaseExpr::getQueryParameters(), m_larg, and m_rarg.

BaseExpr* KexiDB::BinaryExpr::left (   )  const [inline]

Definition at line 170 of file expression.h. Referenced by KexiQueryDesignerGuiEditor::showFieldsOrRelationsForQueryInternal().

BaseExpr* KexiDB::BinaryExpr::right (   )  const [inline]

Definition at line 171 of file expression.h. Referenced by KexiQueryDesignerGuiEditor::showFieldsOrRelationsForQueryInternal().

QString BinaryExpr::tokenToString (   )  [virtual]

Returns: string for token, like "<=" or ">" Reimplemented from KexiDB::BaseExpr. Definition at line 389 of file expression.cpp. References AND, BITWISE_SHIFT_LEFT, BITWISE_SHIFT_RIGHT, CONCATENATION, GREATER_OR_EQUAL, LESS_OR_EQUAL, LIKE, KexiDB::BaseExpr::m_token, NOT_EQUAL, NOT_EQUAL2, NOT_SIMILAR_TO, OR, SIMILAR_TO, SQL_IN, KexiDB::BaseExpr::tokenToDebugString(), and XOR. Referenced by KexiQueryDesignerGuiEditor::showFieldsOrRelationsForQueryInternal(), KexiQueryDesignerGuiEditor::slotBeforeCellChanged(), and toString().

QString BinaryExpr::toString (  QuerySchemaParameterValueListIterator *  params = 0  )  [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). Implements KexiDB::BaseExpr. Definition at line 419 of file expression.cpp. References INFIX, and tokenToString().

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

Reimplemented from KexiDB::BaseExpr. Definition at line 345 of file expression.cpp. References BITWISE_SHIFT_LEFT, BITWISE_SHIFT_RIGHT, KexiDB::Field::Boolean, CONCATENATION, KexiDB::Field::Double, KexiDB::Field::Float, KexiDB::Field::InvalidType, KexiDB::Field::isFPNumericType(), KexiDB::Field::isIntegerType(), m_larg, m_rarg, KexiDB::BaseExpr::m_token, KexiDB::maximumForIntegerTypes(), KexiDB::Field::Null, OR, and KexiDB::BaseExpr::type(). Referenced by debugString().

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

Todo: compare types..., BITWISE_SHIFT_RIGHT requires integers, etc... Reimplemented from KexiDB::BaseExpr. Definition at line 322 of file expression.cpp. References m_larg, m_rarg, KexiDB::BaseExpr::toQueryParameter(), KexiDB::BaseExpr::type(), and KexiDB::BaseExpr::validate().

---

Member Data Documentation

BaseExpr* KexiDB::BinaryExpr::m_larg

Definition at line 175 of file expression.h. Referenced by BinaryExpr(), debugString(), getQueryParameters(), type(), validate(), and ~BinaryExpr().

BaseExpr* KexiDB::BinaryExpr::m_rarg

Definition at line 176 of file expression.h. Referenced by BinaryExpr(), debugString(), getQueryParameters(), type(), validate(), and ~BinaryExpr().

---

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

• expression.h
• expression.cpp

This file is part of the documentation for Kexi 2.0 alpha.

Documentation copyright © 2002-2007 the Kexi Team.
Generated on Tue Apr 1 20:50:44 2008 by doxygen 1.4.2 written by Dimitri van Heesch, © 1997-2003