OMF::Boolean Class Reference

#include

Inheritance diagram for OMF::Boolean:

List of all members.

---

Detailed Description

The Boolean class represents a basic boolean in the modeling environment. Boolean types can have the value "true" or "false". Additional interfaces are provided to cast between the lexical versions of these values and thier C++ equivilants. Acceptable lexical versions of true are "true", "True" and "TRUE". All other string values equate to false. Preference, however, is for the lowercase spelling "true" and "false".

Note that the identity of a Boolean object is calculated on its string value as opposed to its integer value. This is because we assume a Boolean to actually be closer in nature to an enumerated value rather than an integer. Besides, it gives us a nice way of not equating Booleans and Integers.

Public Member Functions
	Boolean ()
	Boolean (const std::string value)
	Boolean (bool value)
virtual	~Boolean ()
const Boolean &	operator= (const std::string &value)
const Boolean &	operator= (bool value)
	operator bool () const
virtual const std::string &	typeCode () const
	operator const std::string & () const
	operator const char * () const
bool	empty () const
void	clear ()
const std::string &	str () const
virtual unsigned	hashCode () const
ModelObject *	metaObject ()
Protected Attributes
bool	_empty
	True indicates a non-value.
std::string	_value
	The string value of the primitive.

---

Constructor & Destructor Documentation

OMF::Boolean::Boolean (   )

OMF::Boolean::Boolean (  const std::string  value  )

OMF::Boolean::Boolean (  bool  value  )

virtual OMF::Boolean::~Boolean (   )  [virtual]

---

Member Function Documentation

void OMF::Primitive::clear (   )  [inherited]

bool OMF::Primitive::empty (   )  const [inherited]

virtual unsigned OMF::Primitive::hashCode (   )  const [virtual, inherited]

The default identity method for primitive types computes an integral hash on the string representation of the object. Derived primitives may overload this method to provide more accurate or efficient hashing capabilities. Note that this method will return the same hash for primitives of different types containing the same value. However, since we don't usually deal with arrays of mixed primitives, this shouldn't really be an issue. Implements OMF::Object. Reimplemented in OMF::Integer, and OMF::UnlimitedNatural.

ModelObject* OMF::Object::metaObject (   )  [inherited]

Return the meta-object of this instance. The meta-object is an instance of the metaclass of this object. For example, the metaclass of UML::Attribute is Model::Class. The metaobject for an instance of UML::Attribute is an instance of Model::Class. This method may force a load of an entire metamodel in order to return the correct object.

OMF::Boolean::operator bool (   )  const

OMF::Primitive::operator const char * (   )  const [inherited]

OMF::Primitive::operator const std::string & (   )  const [inherited]

const Boolean& OMF::Boolean::operator= (  bool  value  )

const Boolean& OMF::Boolean::operator= (  const std::string &  value  )

Reimplemented from OMF::Primitive.

const std::string& OMF::Primitive::str (   )  const [inherited]

Explicitly cast this object to a string.

virtual const std::string& OMF::Boolean::typeCode (   )  const [virtual]

The typeCode method returns a textual description of an object's type. This can vary between classifications of objects. For primitives and collections, the names are essentially static. For model objects, enumerations and collections the name of the object is the scoped name of the instantiating class. Note that the names of primitives are not typed. Implements OMF::Object.

---

Member Data Documentation

bool OMF::Primitive::_empty [protected, inherited]

True indicates a non-value.

std::string OMF::Primitive::_value [protected, inherited]

The string value of the primitive.

---

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

• Boolean.hpp

---