Ilwis::Identity Class Reference

general class to describe the identity of a class More...

#include <identity.h>

Inheritance diagram for Ilwis::Identity:

Public Member Functions
virtual void	setCode (const QString &code)
	sets the code for this instance More...
QString	code () const
	code returns the code of the identity. If no code is attached it will return sUNDEF ("?"). More...
quint64	id () const
	id returns a unsigned 64-bit number unique for the objects using the identity More...
virtual QString	name () const
	name returns the name of an object. All objects have names though names need not to be unique More...
void	setName (const QString &n)
	setName sets the name of an object. All objects have names though names need not to be unique More...
virtual QString	description () const
void	setDescription (const QString &desc)

Protected Member Functions
	Identity (const QString &name, qint64 id=i64UNDEF, const QString &cde=sUNDEF, const QString &descr=sUNDEF)
void	prepare (quint64 base=0)
void	setId (quint64 newid)

Friends
class	Resource

Detailed Description

general class to describe the identity of a class

The identity is used as baseclass for a number of classes that need a unique identification The code and id are unique. The code has an attached meaning usualy related to the type of the instance Other members might be unique (e.g. name) but that depends on the type of class. Codes are not mandatory.

Member Function Documentation

QString Identity::code

(

)

const

code returns the code of the identity. If no code is attached it will return sUNDEF ("?").

*A code is unique for a certain type of objects. The difference between code and id (see below) is that code may have some meaning and that they are only unique *for a certain type of objects (e.g. epsg number for coordinate systems), while id are all uniquem irrespective of the type.

Returns

a string identifying the object

quint64 Identity::id

(

)

const

id returns a unsigned 64-bit number unique for the objects using the identity

Returns

64-bits unsigned integer

QString Identity::name ( ) const

virtual

name returns the name of an object. All objects have names though names need not to be unique

Returns

Reimplemented in Ilwis::NumericItem.

void Identity::setCode ( const QString &  code )

virtual

sets the code for this instance

Parameters

code	unique code from a code set that is unique for this class

Reimplemented in Ilwis::IlwisObject.

void Identity::setName

(

const QString &

n

)

setName sets the name of an object. All objects have names though names need not to be unique

Parameters

n

the name

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

• identity.h
• identity.cpp