BALL::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 ()
	Default constructor.
	RuleEvaluator (INIFile &file, const String &prefix)
	Detailed constructor.
	RuleEvaluator (const RuleEvaluator &evaluator)
	Copy constructor.
virtual	~RuleEvaluator ()
	Destructor.
Accessors
bool	initialize (INIFile &file, const String &prefix)
const String &	getPrefix () const
	Return the prefix of the INI file sections.
void	setPrefix (const String &prefix)
	Set the prefix of the INI file sections.
Assignment
const RuleEvaluator &	operator= (const RuleEvaluator &evaluator)
	Assignment operator.
virtual void	clear ()
	Clear method.
Predicates
String	operator() (const Atom &atom) const
	Rule evaluation.
bool	operator== (const RuleEvaluator &evaluator) const
	Equality operator.
Debugging and Diagnostics
bool	isValid () const
void	dump (std::ostream &s=std::cout, Size indent_depth=0) const
Protected Member Functions
void	extractSection_ (INIFile &file, const String &symbol)
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 Function Documentation

String BALL::RuleEvaluator::operator()

(

const Atom &

atom

)

const

Rule evaluation.

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