Open CASCADE Technology: TObj_Persistence Class Reference

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Static Public Member Functions | Protected Member Functions | Static Protected Member Functions
TObj_Persistence Class Referenceabstract

`#include <TObj_Persistence.hxx>`

## Static Public Member Functions
static Handle< TObj_Object > | CreateNewObject (const Standard_CString theType, const TDF_Label &theLabel)
| Creates and returns a new object of the registered type If the type is not registered, returns Null handle. More...
static void | DumpTypes (Standard_OStream &theOs)
| Dumps names of all the types registered for persistence to the specified stream. More...

## Protected Member Functions
| TObj_Persistence (const Standard_CString theType)
| The constructor registers the object. More...
virtual | ~TObj_Persistence ()
| The destructor unregisters the object. More...
virtual Handle< TObj_Object > | New (const TDF_Label &theLabel) const =0
| The method must be redefined in the derived class and return new object of the proper type. More...

## Static Protected Member Functions
static TObj_DataMapOfStringPointer & | getMapOfTypes ()
| Dictionary storing all the registered types. It is implemented as static variable inside member function in order to ensure initialization at first call. More...

## Detailed Description

This class is intended to be a root of tools (one per class) to manage persistence of objects inherited from TObj_Object It provides a mechanism to recover correctly typed objects (subtypes of TObj_Object) out of their persistent names

This is a special kind of object, it automatically registers itself in a global map when created, and the only thing it does is to create a new object of the type that it manages, by request

## Constructor & Destructor Documentation

TObj_Persistence::TObj_Persistence | ( | const Standard_CString | theType | ) |
| protected

The constructor registers the object.

Protected methods, to be used or defined by descendants

virtual TObj_Persistence::~TObj_Persistence | ( |  | ) |
| protectedvirtual

The destructor unregisters the object.

## Member Function Documentation

static Handle< TObj_Object > TObj_Persistence::CreateNewObject | ( | const Standard_CString | theType,
|  | const TDF_Label & | theLabel
| ) |  |
| static

Creates and returns a new object of the registered type If the type is not registered, returns Null handle.

Public methods, to be called externally

static void TObj_Persistence::DumpTypes | ( | Standard_OStream & | theOs | ) |
| static

Dumps names of all the types registered for persistence to the specified stream.

static TObj_DataMapOfStringPointer& TObj_Persistence::getMapOfTypes | ( |  | ) |
| staticprotected

Dictionary storing all the registered types. It is implemented as static variable inside member function in order to ensure initialization at first call.

virtual Handle< TObj_Object > TObj_Persistence::New | ( | const TDF_Label & | theLabel | ) | const
| protectedpure virtual

The method must be redefined in the derived class and return new object of the proper type.

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

- TObj_Persistence.hxx