OWBI1::WQLSelectStatement Class Reference

#include <OWBI1_WQLSelectStatement.hpp>

Collaboration diagram for OWBI1::WQLSelectStatement:


Public Member Functions
	WQLSelectStatement ()
	~WQLSelectStatement ()
void	clear ()
	Clears all data members of this object.
const String &	getClassName () const
void	setClassName (const String &className)
	Modifier.
UInt32	getSelectPropertyNameCount () const
	Returns the number of property names which were indicated in the selection list.
const String &	getSelectPropertyName (UInt32 i) const
	Gets the i-th selected property name in the list.
const StringArray &	getSelectPropertyNames () const
	Gets the selected property names in the list.
void	appendSelectPropertyName (const String &x)
	Appends a property name to the property name list.
UInt32	getWherePropertyNameCount () const
	Returns the number of unique property names from the where clause.
const String &	getWherePropertyName (UInt32 i) const
	Gets the i-th unique property appearing in the where clause.
bool	appendWherePropertyName (const String &x)
	Appends a property name to the where property name list.
void	appendOperation (WQLOperation x)
	Appends an operation to the operation array.
void	appendOperand (const WQLOperand &x)
	Appends an operand to the operation array.
bool	hasWhereClause () const
	Returns true if this class has a where clause.
bool	evaluateWhereClause (const WQLPropertySource *source) const
	Evalautes the where clause using the symbol table to resolve symbols.
void	print (std::ostream &ostr) const
	Prints out the members of this class.
String	toString () const
void	compileWhereClause (const WQLPropertySource *source, WQLCompile &wcl)
Private Attributes
String	_className
Array< String >	_selectPropertyNames
Array< String >	_wherePropertyNames
Array< OperandOrOperation >	_operStack
Friends
class	WQLCompile
Classes
struct	OperandOrOperation

Detailed Description

Definition at line 54 of file OWBI1_WQLSelectStatement.hpp.

Constructor & Destructor Documentation

OWBI1::WQLSelectStatement::WQLSelectStatement ( )

Definition at line 116 of file OWBI1_WQLSelectStatement.cpp.
References _operStack, and OWBI1::Array< T >::reserve().

OWBI1::WQLSelectStatement::~WQLSelectStatement ( )

Definition at line 120 of file OWBI1_WQLSelectStatement.cpp.

Member Function Documentation

void OWBI1::WQLSelectStatement::appendOperand ( const WQLOperand & x ) [inline]

Appends an operand to the operation array.
This method should only be called by the parser itself.
Definition at line 127 of file OWBI1_WQLSelectStatement.hpp.

void OWBI1::WQLSelectStatement::appendOperation ( WQLOperation x ) [inline]

Appends an operation to the operation array.
This method should only be called by the parser itself.
Definition at line 120 of file OWBI1_WQLSelectStatement.hpp.

void OWBI1::WQLSelectStatement::appendSelectPropertyName ( const String & x ) [inline]

Appends a property name to the property name list.
This user should not call this method; it should only be called by the parser.
Definition at line 95 of file OWBI1_WQLSelectStatement.hpp.

bool OWBI1::WQLSelectStatement::appendWherePropertyName ( const String & x )

Appends a property name to the where property name list.
This user should not call this method; it should only be called by the parser.
Parameters:

x name of the property.

Returns:
false if a property with that name already exists.

Definition at line 129 of file OWBI1_WQLSelectStatement.cpp.
References _wherePropertyNames, i, and OWBI1::Array< T >::size().

void OWBI1::WQLSelectStatement::clear ( )

Clears all data members of this object.

Definition at line 123 of file OWBI1_WQLSelectStatement.cpp.
References _className, _operStack, _selectPropertyNames, OWBI1::Array< T >::clear(), and OWBI1::String::erase().

void OWBI1::WQLSelectStatement::compileWhereClause ( const WQLPropertySource * source,

WQLCompile & wcl

)

Definition at line 351 of file OWBI1_WQLSelectStatement.cpp.
References OWBI1::WQLCompile::compile().

bool OWBI1::WQLSelectStatement::evaluateWhereClause ( const WQLPropertySource * source ) const

Evalautes the where clause using the symbol table to resolve symbols.

Returns:
true or false if the source passes the query

Exceptions:

NoSuchPropertyException if the where clause references a property that is unknown to source.

TypeMismatchException if the there is a type error in the where clause or if the property type of the source property doesn't match the query.

Definition at line 164 of file OWBI1_WQLSelectStatement.cpp.
References OWBI1::_Evaluate(), _operStack, OWBI1::_ResolveProperty(), className, OWBI1::WQLOperand::getBooleanValue(), OWBI1::WQLOperand::getPropertyName(), OWBI1::WQLOperand::getType(), hasWhereClause(), i, OWBI1::WQLSelectStatement::OperandOrOperation::OPERAND, OW_ASSERT, OWBI1_THROW, OWBI1::WQLOperand::PROPERTY_NAME, OWBI1::Array< T >::size(), OWBI1::WQLOperand::STRING_VALUE, OWBI1::WQL_AND, OWBI1::WQL_BOOLEAN_VALUE_TAG, OWBI1::WQL_EQ, OWBI1::WQL_GE, OWBI1::WQL_GT, OWBI1::WQL_ISA, OWBI1::WQL_LE, OWBI1::WQL_LT, OWBI1::WQL_NE, OWBI1::WQL_NOT, and OWBI1::WQL_OR.

const String& OWBI1::WQLSelectStatement::getClassName ( ) const [inline]

Definition at line 62 of file OWBI1_WQLSelectStatement.hpp.

const String& OWBI1::WQLSelectStatement::getSelectPropertyName ( UInt32 i ) const [inline]

Gets the i-th selected property name in the list.

Definition at line 82 of file OWBI1_WQLSelectStatement.hpp.

UInt32 OWBI1::WQLSelectStatement::getSelectPropertyNameCount ( ) const [inline]

Returns the number of property names which were indicated in the selection list.

Definition at line 76 of file OWBI1_WQLSelectStatement.hpp.

const StringArray& OWBI1::WQLSelectStatement::getSelectPropertyNames ( ) const [inline]

Gets the selected property names in the list.

Definition at line 88 of file OWBI1_WQLSelectStatement.hpp.

const String& OWBI1::WQLSelectStatement::getWherePropertyName ( UInt32 i ) const [inline]

Gets the i-th unique property appearing in the where clause.

Definition at line 107 of file OWBI1_WQLSelectStatement.hpp.

UInt32 OWBI1::WQLSelectStatement::getWherePropertyNameCount ( ) const [inline]

Returns the number of unique property names from the where clause.

Definition at line 101 of file OWBI1_WQLSelectStatement.hpp.

bool OWBI1::WQLSelectStatement::hasWhereClause ( ) const [inline]

Returns true if this class has a where clause.

Definition at line 133 of file OWBI1_WQLSelectStatement.hpp.
Referenced by OWBI1::WQLCompile::compile(), and evaluateWhereClause().

void OWBI1::WQLSelectStatement::print ( std::ostream & ostr ) const

Prints out the members of this class.

Definition at line 291 of file OWBI1_WQLSelectStatement.cpp.
References _className, _selectPropertyNames, i, and OWBI1::Array< T >::size().

void OWBI1::WQLSelectStatement::setClassName ( const String & className ) [inline]

Modifier.
This method should not be called by the user (only by the parser).
Definition at line 69 of file OWBI1_WQLSelectStatement.hpp.
References className.