OW_NAMESPACE::WQLCompile Class Reference

#include <OW_WQLCompile.hpp>

Collaboration diagram for OW_NAMESPACE::WQLCompile:

[legend]List of all members.

Public Types
typedef Array< term_el >	TableauRow
typedef Array< TableauRow >	Tableau
enum	el_type { EVAL_HEAP, TERMINAL_HEAP, OPERAND }
Public Member Functions
	WQLCompile ()
	WQLCompile (const WQLSelectStatement &wqs)
	~WQLCompile ()
void	compile (const WQLSelectStatement *wqs)
const Tableau &	getTableau () const
bool	evaluate (const WQLPropertySource &source) const
	Evalautes the where clause using the symbol table to resolve symbols.
void	print (std::ostream &ostr)
void	printTableau (std::ostream &ostr)
Private Member Functions
void	_buildEvalHeap (const WQLSelectStatement *wqs)
void	_pushNOTDown ()
void	_factoring ()
void	_gatherDisj (Array< stack_el > &stk)
void	_gatherConj (Array< stack_el > &stk, stack_el sel)
void	_gather (Array< stack_el > &stk, stack_el sel, bool or_flag)
void	_sortTableau ()
Static Private Member Functions
static void	_ResolveProperty (WQLOperand &op, const WQLPropertySource &source)
Private Attributes
Tableau	_tableau
Array< term_el >	terminal_heap
Array< eval_el >	eval_heap
Classes
struct	eval_el
struct	stack_el
struct	term_el

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Detailed Description

Definition at line 39 of file OW_WQLCompile.hpp.

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Member Typedef Documentation

typedef Array<TableauRow> OW_NAMESPACE::WQLCompile::Tableau

Definition at line 119 of file OW_WQLCompile.hpp.

typedef Array<term_el> OW_NAMESPACE::WQLCompile::TableauRow

Definition at line 117 of file OW_WQLCompile.hpp.

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Member Enumeration Documentation

enum OW_NAMESPACE::WQLCompile::el_type

Enumerator: EVAL_HEAP  TERMINAL_HEAP  OPERAND  Definition at line 61 of file OW_WQLCompile.hpp.

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Constructor & Destructor Documentation

OW_NAMESPACE::WQLCompile::WQLCompile (   )

Definition at line 195 of file OW_WQLCompile.cpp.

OW_NAMESPACE::WQLCompile::WQLCompile (  const WQLSelectStatement &  wqs  )

Definition at line 198 of file OW_WQLCompile.cpp. References compile().

OW_NAMESPACE::WQLCompile::~WQLCompile (   )

Definition at line 202 of file OW_WQLCompile.cpp.

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Member Function Documentation

void OW_NAMESPACE::WQLCompile::_buildEvalHeap (  const WQLSelectStatement *  wqs  )  [private]

Definition at line 357 of file OW_WQLCompile.cpp. References OW_NAMESPACE::WQLSelectStatement::_operStack, OW_NAMESPACE::Array< T >::append(), EVAL_HEAP, eval_heap, i, OPERAND, OW_NAMESPACE::WQLSelectStatement::OperandOrOperation::OPERAND, OW_NAMESPACE::WQLCompile::stack_el::opn, OW_ASSERT, OW_NAMESPACE::Stack< T >::pop(), OW_NAMESPACE::Stack< T >::push(), OW_NAMESPACE::Array< T >::push_back(), OW_NAMESPACE::Stack< T >::size(), OW_NAMESPACE::Array< T >::size(), terminal_heap, TERMINAL_HEAP, OW_NAMESPACE::Stack< T >::top(), OW_NAMESPACE::WQLCompile::stack_el::type, OW_NAMESPACE::WQL_AND, OW_NAMESPACE::WQL_DO_NOTHING, OW_NAMESPACE::WQL_EQ, OW_NAMESPACE::WQL_GE, OW_NAMESPACE::WQL_GT, OW_NAMESPACE::WQL_ISA, OW_NAMESPACE::WQL_LE, OW_NAMESPACE::WQL_LT, OW_NAMESPACE::WQL_NE, OW_NAMESPACE::WQL_NOT, and OW_NAMESPACE::WQL_OR.

void OW_NAMESPACE::WQLCompile::_factoring (   )  [private]

Definition at line 524 of file OW_WQLCompile.cpp. References OW_NAMESPACE::Array< T >::append(), EVAL_HEAP, eval_heap, i, index, OW_NAMESPACE::Array< T >::insert(), s, OW_NAMESPACE::Array< T >::size(), OW_NAMESPACE::WQL_AND, and OW_NAMESPACE::WQL_OR.

void OW_NAMESPACE::WQLCompile::_gather (  Array< stack_el > &  stk, stack_el  sel, bool  or_flag )  [private]

Definition at line 618 of file OW_WQLCompile.cpp. References OW_NAMESPACE::Array< T >::append(), OW_NAMESPACE::Array< T >::empty(), EVAL_HEAP, eval_heap, i, OW_NAMESPACE::Array< T >::insert(), OW_NAMESPACE::Array< T >::remove(), OW_NAMESPACE::Array< T >::size(), type, OW_NAMESPACE::WQLCompile::stack_el::type, OW_NAMESPACE::WQL_AND, OW_NAMESPACE::WQL_DO_NOTHING, and OW_NAMESPACE::WQL_OR. Referenced by _gatherConj(), and _gatherDisj().

void OW_NAMESPACE::WQLCompile::_gatherConj (  Array< stack_el > &  stk, stack_el  sel )  [private]

Definition at line 614 of file OW_WQLCompile.cpp. References _gather().

void OW_NAMESPACE::WQLCompile::_gatherDisj (  Array< stack_el > &  stk  )  [private]

Definition at line 610 of file OW_WQLCompile.cpp. References _gather(), and TERMINAL_HEAP.

void OW_NAMESPACE::WQLCompile::_pushNOTDown (   )  [private]

Definition at line 438 of file OW_WQLCompile.cpp. References EVAL_HEAP, eval_heap, i, OW_NAMESPACE::Array< T >::size(), OW_NAMESPACE::WQL_DO_NOTHING, and OW_NAMESPACE::WQL_NOT.

static void OW_NAMESPACE::WQLCompile::_ResolveProperty (  WQLOperand &  op, const WQLPropertySource &  source )  [inline, static, private]

Definition at line 146 of file OW_WQLCompile.hpp. References OW_NAMESPACE::WQLOperand::getPropertyName(), OW_NAMESPACE::WQLOperand::getType(), OW_NAMESPACE::WQLPropertySource::getValue(), OW_THROW, and OW_NAMESPACE::WQLOperand::PROPERTY_NAME.

void OW_NAMESPACE::WQLCompile::_sortTableau (   )  [private]

Definition at line 675 of file OW_WQLCompile.cpp. References _tableau, i, OW_NAMESPACE::WQLOperand::PROPERTY_NAME, OW_NAMESPACE::Array< T >::size(), OW_NAMESPACE::WQL_GE, OW_NAMESPACE::WQL_GT, OW_NAMESPACE::WQL_LE, and OW_NAMESPACE::WQL_LT.

void OW_NAMESPACE::WQLCompile::compile (  const WQLSelectStatement *  wqs  )

Definition at line 205 of file OW_WQLCompile.cpp. References OW_NAMESPACE::WQLSelectStatement::hasWhereClause(). Referenced by OW_NAMESPACE::WQLSelectStatement::compileWhereClause(), and WQLCompile().

bool OW_NAMESPACE::WQLCompile::evaluate (  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 248 of file OW_WQLCompile.cpp. References _tableau, className, OW_NAMESPACE::WQLPropertySource::evaluateISA(), i, OW_NAMESPACE::WQLOperand::PROPERTY_NAME, OW_NAMESPACE::Array< T >::size(), and OW_NAMESPACE::WQL_ISA.

const Tableau& OW_NAMESPACE::WQLCompile::getTableau (   )  const [inline]

Definition at line 126 of file OW_WQLCompile.hpp.

void OW_NAMESPACE::WQLCompile::print (  std::ostream &  ostr  )

Definition at line 297 of file OW_WQLCompile.cpp. References EVAL_HEAP, eval_heap, i, OW_NAMESPACE::Array< T >::size(), TERMINAL_HEAP, OW_NAMESPACE::WQL_DO_NOTHING, and OW_NAMESPACE::WQLOperationToString().

void OW_NAMESPACE::WQLCompile::printTableau (  std::ostream &  ostr  )

Definition at line 343 of file OW_WQLCompile.cpp. References _tableau, i, OW_NAMESPACE::Array< T >::size(), and OW_NAMESPACE::WQLOperationToString().

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Member Data Documentation

Tableau OW_NAMESPACE::WQLCompile::_tableau [private]

Definition at line 167 of file OW_WQLCompile.hpp. Referenced by _sortTableau(), evaluate(), and printTableau().

Array<eval_el> OW_NAMESPACE::WQLCompile::eval_heap [private]

Definition at line 174 of file OW_WQLCompile.hpp. Referenced by _buildEvalHeap(), _factoring(), _gather(), _pushNOTDown(), and print().

Array<term_el> OW_NAMESPACE::WQLCompile::terminal_heap [private]

Definition at line 173 of file OW_WQLCompile.hpp. Referenced by _buildEvalHeap().

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

• OW_WQLCompile.hpp
• OW_WQLCompile.cpp

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