RuleEvaluator Class Reference
[Rule-based parameter assignment]

Rule evaluator class. More...

#include <ruleEvaluator.h>

List of all members.

Public Types
Type Definitions
typedef std::list< std::pair< Expression, String > >	RuleList
	Type definition for a list containing rules.
typedef StringHashMap< RuleList >	RuleMap
	Type definition for a hashmap containing the lists of rules.
Public Member Functions
Constructors and Destructor
	RuleEvaluator () throw ()
	Default constructor.
	RuleEvaluator (INIFile &file, const String &prefix) throw ()
	Detailed constructor.
	RuleEvaluator (const RuleEvaluator &evaluator) throw ()
	Copy constructor.
virtual	~RuleEvaluator () throw ()
	Destructor.
Accessors
bool	initialize (INIFile &file, const String &prefix) throw ()
const String &	getPrefix () const throw ()
	Return the prefix of the INI file sections.
void	setPrefix (const String &prefix) throw ()
	Set the prefix of the INI file sections.
Assignment
const RuleEvaluator &	operator= (const RuleEvaluator &evaluator) throw ()
	Assignment operator.
virtual void	clear () throw ()
	Clear method.
Predicates
String	operator() (const Atom &atom) const throw ()
	Rule evaluation.
bool	operator== (const RuleEvaluator &evaluator) const throw ()
	Equality operator.
Debugging and Diagnostics
bool	isValid () const throw ()
void	dump (std::ostream &s=std::cout, Size indent_depth=0) const throw ()
Protected Member Functions
void	extractSection_ (INIFile &file, const String &symbol) throw ()
Protected Attributes
String	prefix_
RuleMap	rule_map_
bool	valid_

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Detailed Description

Rule evaluator class.

This class provides means for evaluating rules on Atoms. It is a helper class of RuleProcessors. Rules define values depending on atom constellations. They are defined in an INIFile.

See also:

RuleProcessor

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Member Typedef Documentation

typedef std::list<std::pair<Expression, String> > RuleEvaluator::RuleList

Type definition for a list containing rules.

typedef StringHashMap<RuleList> RuleEvaluator::RuleMap

Type definition for a hashmap containing the lists of rules.

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Member Function Documentation

String RuleEvaluator::operator() (  const Atom &  atom  )  const throw ()

Rule evaluation. Evaluate all matching rules (in the correct order) and return the corresponding value. If no rule matches, an empty string is returned.