The abstract root class for all application classes. They are in charge of: More...

#include <TDocStd_Application.hxx>

Inheritance diagram for TDocStd_Application:

[legend]

Public Member Functions
	TDocStd_Application ()
	Constructs the new instance and registers it in CDM_Session. More...

Standard_Boolean	IsDriverLoaded () const
	Check if meta data driver was successfully loaded by the application constructor. More...

virtual Handle< CDM_MessageDriver >	MessageDriver () override
	Redefines message driver, by default outputs to cout. More...

virtual Handle< Resource_Manager >	Resources () override
	Returns resource manager defining supported persistent formats. More...

virtual Standard_CString	ResourcesName ()
	Returns the name of the file containing the resources of this application, for support of legacy method of loading formats data from resource files. More...

void	DefineFormat (const TCollection_AsciiString &theFormat, const TCollection_AsciiString &theDescription, const TCollection_AsciiString &theExtension, const Handle< PCDM_RetrievalDriver > &theReader, const Handle< PCDM_StorageDriver > &theWriter)
	Sets up resources and registers read and storage drivers for the specified format. More...

void	ReadingFormats (TColStd_SequenceOfAsciiString &theFormats)
	Returns the sequence of reading formats supported by the application. More...

void	WritingFormats (TColStd_SequenceOfAsciiString &theFormats)
	Returns the sequence of writing formats supported by the application. More...

Standard_Integer	NbDocuments () const
	returns the number of documents handled by the current applicative session. More...

void	GetDocument (const Standard_Integer index, Handle< TDocStd_Document > &aDoc) const
	Constructs the new document aDoc. aDoc is identified by the index index which is any integer between 1 and n where n is the number of documents returned by NbDocument. Example Handle(TDocStd_Application) anApp; if (!CafTest::Find(A)) return 1; Handle(TDocStd) aDoc; Standard_Integer nbdoc = anApp->NbDocuments(); for (Standard_Integer i = 1; i <= nbdoc; i++) { aApp->GetDocument(i,aDoc);. More...

virtual void	NewDocument (const TCollection_ExtendedString &format, Handle< TDocStd_Document > &aDoc)
	Constructs the empty new document aDoc. This document will have the format format. If InitDocument is redefined for a specific application, the new document is handled by the applicative session. More...

virtual void	InitDocument (const Handle< TDocStd_Document > &aDoc) const
	Initialize the document aDoc for the applicative session. This virtual function is called by NewDocument and is to be redefined for each specific application. <>Modified flag (different of disk version) <>to open/save a document More...

void	Close (const Handle< TDocStd_Document > &aDoc)
	Close the given document. the document is not any more handled by the applicative session. More...

Standard_Integer	IsInSession (const TCollection_ExtendedString &path) const
	Returns an index for the document found in the path path in this applicative session. If the returned value is 0, the document is not present in the applicative session. This method can be used for the interactive part of an application. For instance, on a call to Open, the document to be opened may already be in memory. IsInSession checks to see if this is the case. Open can be made to depend on the value of the index returned: if IsInSession returns 0, the document is opened; if it returns another value, a message is displayed asking the user if he wants to override the version of the document in memory. Example: Standard_Integer insession = A->IsInSession(aDoc); if (insession > 0) { cout << "document " << insession << " is already in session" << endl; return 0; }. More...

PCDM_ReaderStatus	Open (const TCollection_ExtendedString &path, Handle< TDocStd_Document > &aDoc)
	Retrieves the document aDoc stored under the name aName in the directory directory. In order not to override a version of aDoc which is already in memory, this method can be made to depend on the value returned by IsInSession. More...

PCDM_ReaderStatus	Open (Standard_IStream &theIStream, Handle< TDocStd_Document > &theDoc)
	Retrieves aDoc from standard SEEKABLE stream theIStream. the stream should support SEEK fuctionality. More...

PCDM_StoreStatus	SaveAs (const Handle< TDocStd_Document > &aDoc, const TCollection_ExtendedString &path)
	Save the active document in the file <name> in the path <path> ; o verwrites the file if it already exists. More...

PCDM_StoreStatus	SaveAs (const Handle< TDocStd_Document > &theDoc, Standard_OStream &theOStream)
	Save theDoc to standard SEEKABLE stream theOStream. the stream should support SEEK fuctionality. More...

PCDM_StoreStatus	Save (const Handle< TDocStd_Document > &aDoc)
	Save aDoc active document. Exceptions: Standard_NotImplemented if the document was not retrieved in the applicative session by using Open. More...

PCDM_StoreStatus	SaveAs (const Handle< TDocStd_Document > &aDoc, const TCollection_ExtendedString &path, TCollection_ExtendedString &theStatusMessage)
	Save the active document in the file <name> in the path <path> . overwrite the file if it already exist. More...

PCDM_StoreStatus	SaveAs (const Handle< TDocStd_Document > &theDoc, Standard_OStream &theOStream, TCollection_ExtendedString &theStatusMessage)
	Save theDoc TO standard SEEKABLE stream theOStream. the stream should support SEEK fuctionality. More...

PCDM_StoreStatus	Save (const Handle< TDocStd_Document > &aDoc, TCollection_ExtendedString &theStatusMessage)
	Save the document overwriting the previous file. More...

virtual void	OnOpenTransaction (const Handle< TDocStd_Document > &theDoc)
	Notification that is fired at each OpenTransaction event. More...

virtual void	OnCommitTransaction (const Handle< TDocStd_Document > &theDoc)
	Notification that is fired at each CommitTransaction event. More...

virtual void	OnAbortTransaction (const Handle< TDocStd_Document > &theDoc)
	Notification that is fired at each AbortTransaction event. More...

Public Member Functions inherited from CDF_Application
void	Open (const Handle< CDM_Document > &aDocument)
	puts the document in the current session directory and calls the virtual method Activate on it. More...

CDM_CanCloseStatus	CanClose (const Handle< CDM_Document > &aDocument)

void	Close (const Handle< CDM_Document > &aDocument)
	removes the document of the current session directory and closes the document; More...

Handle< CDM_Document >	Retrieve (const TCollection_ExtendedString &aFolder, const TCollection_ExtendedString &aName, const Standard_Boolean UseStorageConfiguration=Standard_True)
	This method retrieves a document from the database. If the Document references other documents which have been updated, the latest version of these documents will be used if {UseStorageConfiguration} is Standard_True. The content of {aFolder}, {aName} and {aVersion} depends on the Database Manager system. If the DBMS is only based on the OS, {aFolder} is a directory and {aName} is the name of a file. In this case the use of the syntax with {aVersion} has no sense. For example: More...

Handle< CDM_Document >	Retrieve (const TCollection_ExtendedString &aFolder, const TCollection_ExtendedString &aName, const TCollection_ExtendedString &aVersion, const Standard_Boolean UseStorageConfiguration=Standard_True)
	This method retrieves a document from the database. If the Document references other documents which have been updated, the latest version of these documents will be used if {UseStorageConfiguration} is Standard_True. – If the DBMS is only based on the OS, this syntax should not be used. More...

PCDM_ReaderStatus	CanRetrieve (const TCollection_ExtendedString &aFolder, const TCollection_ExtendedString &aName)

PCDM_ReaderStatus	CanRetrieve (const TCollection_ExtendedString &aFolder, const TCollection_ExtendedString &aName, const TCollection_ExtendedString &aVersion)

PCDM_ReaderStatus	GetRetrieveStatus () const
	Checks status after Retrieve. More...

Handle< CDM_Document >	Read (Standard_IStream &theIStream)
	Reads aDoc from standard SEEKABLE stream theIStream, the stream should support SEEK fuctionality. More...

virtual Handle< PCDM_Reader >	ReaderFromFormat (const TCollection_ExtendedString &aFormat)
	Returns instance of read driver for specified format. More...

virtual Handle< PCDM_StorageDriver >	WriterFromFormat (const TCollection_ExtendedString &aFormat)
	Returns instance of storage driver for specified format. More...

Standard_Boolean	Format (const TCollection_ExtendedString &aFileName, TCollection_ExtendedString &theFormat)
	try to retrieve a Format directly in the file or in application resource by using extension. returns True if found; More...

Standard_ExtString	DefaultFolder ()

Standard_Boolean	SetDefaultFolder (const Standard_ExtString aFolder)

Public Member Functions inherited from CDM_Application
virtual void	BeginOfUpdate (const Handle< CDM_Document > &aDocument)
	this method is called before the update of a document. By default, writes in MessageDriver(). More...

virtual void	EndOfUpdate (const Handle< CDM_Document > &aDocument, const Standard_Boolean Status, const TCollection_ExtendedString &ErrorString)
	this method is called affter the update of a document. By default, writes in MessageDriver(). More...

void	Write (const Standard_ExtString aString)
	writes the string in the application MessagerDriver. More...

Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor. More...

	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing. More...

Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter. More...

virtual	~Standard_Transient ()
	Destructor must be virtual. More...

virtual void	Delete () const
	Memory deallocator for transient classes. More...

virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object. More...

Standard_Boolean	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type. More...

Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName. More...

Standard_Boolean	IsKind (const opencascade::handle< Standard_Type > &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...

Standard_Boolean	IsKind (const Standard_CString theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...

Standard_Transient *	This () const
	Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero. More...

Standard_Integer	GetRefCount () const
	Get the reference counter of this object. More...

void	IncrementRefCounter () const
	Increments the reference counter of this object. More...

Standard_Integer	DecrementRefCounter () const
	Decrements the reference counter of this object; returns the decremented value. More...

Protected Attributes
Handle< CDM_MessageDriver >	myMessageDriver

Handle< Resource_Manager >	myResources

Standard_Boolean	myIsDriverLoaded

Protected Attributes inherited from CDF_Application
PCDM_ReaderStatus	myRetrievableStatus

NCollection_IndexedDataMap< TCollection_ExtendedString, Handle< PCDM_RetrievalDriver > >	myReaders

NCollection_IndexedDataMap< TCollection_ExtendedString, Handle< PCDM_StorageDriver > >	myWriters

Additional Inherited Members
Public Types inherited from Standard_Transient
typedef void	base_type
	Returns a type descriptor about this object. More...

Static Public Member Functions inherited from CDF_Application
static Handle< CDF_Application >	Load (const Standard_GUID &aGUID)
	plugs an application. More...

Static Public Member Functions inherited from Standard_Transient
static const char *	get_type_name ()
	Returns a type descriptor about this object. More...

static const opencascade::handle< Standard_Type > &	get_type_descriptor ()
	Returns type descriptor of Standard_Transient class. More...

Protected Member Functions inherited from CDF_Application
	CDF_Application ()

Protected Member Functions inherited from CDM_Application
void	SetDocumentVersion (const Handle< CDM_Document > &aDocument, const Handle< CDM_MetaData > &aMetaData) const

void	SetReferenceCounter (const Handle< CDM_Document > &aDocument, const Standard_Integer aReferenceCounter)

Detailed Description

The abstract root class for all application classes. They are in charge of:

Creating documents
Storing documents and retrieving them
Initializing document views. To create a useful OCAF-based application, you derive a class from Application and implement the methods below. You will have to redefine the deferred (virtual) methods Formats, InitDocument, and Resources, and override others. The application is a container for a document, which in its turn is the container of the data framework made up of labels and attributes. Besides furnishing a container for documents, TDocStd_Application provides the following services for them:
Creation of new documents
Activation of documents in sessions of an application
Storage and retrieval of documents
Initialization of document views. Note: If a client needs detailed information concerning the events during the Open/Store operation, MessageDriver inherited from CDM_MessageDriver of the corresponding application has to be implemented. If the MessageDriver is not defined all messages will be (by default) directed to CDM_NullMessageDriver and will be lost.

Constructor & Destructor Documentation

TDocStd_Application::TDocStd_Application ( )

Constructs the new instance and registers it in CDM_Session.

Member Function Documentation

void TDocStd_Application::Close ( const Handle< TDocStd_Document > & aDoc )

Close the given document. the document is not any more handled by the applicative session.

void TDocStd_Application::DefineFormat	(	const TCollection_AsciiString &	theFormat,
		const TCollection_AsciiString &	theDescription,
		const TCollection_AsciiString &	theExtension,
		const Handle< PCDM_RetrievalDriver > &	theReader,
		const Handle< PCDM_StorageDriver > &	theWriter
	)

Sets up resources and registers read and storage drivers for the specified format.

Parameters

theFormat	- unique name for the format, used to identify it.
theDescription	- textual description of the format.
theExtension	- extension of the files in that format. The same extension can be used by several formats.
theReader	- instance of the read driver for the format. Null value is allowed (no possibility to read).
theWriter	- instance of the write driver for the format. Null value is allowed (no possibility to write).

void TDocStd_Application::GetDocument	(	const Standard_Integer	index,
		Handle< TDocStd_Document > &	aDoc
	)		const

Constructs the new document aDoc. aDoc is identified by the index index which is any integer between 1 and n where n is the number of documents returned by NbDocument. Example Handle(TDocStd_Application) anApp; if (!CafTest::Find(A)) return 1; Handle(TDocStd) aDoc; Standard_Integer nbdoc = anApp->NbDocuments(); for (Standard_Integer i = 1; i <= nbdoc; i++) { aApp->GetDocument(i,aDoc);.

virtual void TDocStd_Application::InitDocument ( const Handle< TDocStd_Document > & aDoc ) const

virtual

Initialize the document aDoc for the applicative session. This virtual function is called by NewDocument and is to be redefined for each specific application.

<>Modified flag (different of disk version) <>to open/save a document

Reimplemented in XCAFApp_Application.

Standard_Boolean TDocStd_Application::IsDriverLoaded ( ) const

Check if meta data driver was successfully loaded by the application constructor.

Standard_Integer TDocStd_Application::IsInSession ( const TCollection_ExtendedString & path ) const

Returns an index for the document found in the path path in this applicative session. If the returned value is 0, the document is not present in the applicative session. This method can be used for the interactive part of an application. For instance, on a call to Open, the document to be opened may already be in memory. IsInSession checks to see if this is the case. Open can be made to depend on the value of the index returned: if IsInSession returns 0, the document is opened; if it returns another value, a message is displayed asking the user if he wants to override the version of the document in memory. Example: Standard_Integer insession = A->IsInSession(aDoc); if (insession > 0) { cout << "document " << insession << " is already in session" << endl; return 0; }.

virtual Handle< CDM_MessageDriver > TDocStd_Application::MessageDriver ( )

overridevirtual

Redefines message driver, by default outputs to cout.

Reimplemented from CDM_Application.

Standard_Integer TDocStd_Application::NbDocuments ( ) const

returns the number of documents handled by the current applicative session.

virtual void TDocStd_Application::NewDocument	(	const TCollection_ExtendedString &	format,
		Handle< TDocStd_Document > &	aDoc
	)

virtual

Constructs the empty new document aDoc. This document will have the format format. If InitDocument is redefined for a specific application, the new document is handled by the applicative session.

virtual void TDocStd_Application::OnAbortTransaction ( const Handle< TDocStd_Document > & theDoc )

virtual

Notification that is fired at each AbortTransaction event.

virtual void TDocStd_Application::OnCommitTransaction ( const Handle< TDocStd_Document > & theDoc )

virtual

Notification that is fired at each CommitTransaction event.

virtual void TDocStd_Application::OnOpenTransaction ( const Handle< TDocStd_Document > & theDoc )

virtual

Notification that is fired at each OpenTransaction event.

PCDM_ReaderStatus TDocStd_Application::Open	(	const TCollection_ExtendedString &	path,
		Handle< TDocStd_Document > &	aDoc
	)

Retrieves the document aDoc stored under the name aName in the directory directory. In order not to override a version of aDoc which is already in memory, this method can be made to depend on the value returned by IsInSession.

PCDM_ReaderStatus TDocStd_Application::Open	(	Standard_IStream &	theIStream,
		Handle< TDocStd_Document > &	theDoc
	)

Retrieves aDoc from standard SEEKABLE stream theIStream. the stream should support SEEK fuctionality.

void TDocStd_Application::ReadingFormats ( TColStd_SequenceOfAsciiString & theFormats )

Returns the sequence of reading formats supported by the application.

Parameters

theFormats - sequence of reading formats. Output parameter.

virtual Handle< Resource_Manager > TDocStd_Application::Resources ( )

overridevirtual

Returns resource manager defining supported persistent formats.

Default implementation loads resource file with name ResourcesName(), unless field myResources is already initialized (either by previous call or in any other way).

The resource manager should define:

Format name for each file extension supported:
- [Extension].FileFormat: [Format]
For each format supported (as returned by Formats()), its extension, description string, and (when applicable) GUIDs of storage and retrieval plugins:
- [Format].Description: [Description]
- [Format].FileExtension: [Extension]
- [Format].RetrievalPlugin: [GUID] (optional)
- [Format].StoragePlugin: [GUID] (optional)

Implements CDM_Application.

virtual Standard_CString TDocStd_Application::ResourcesName ( )

virtual

Returns the name of the file containing the resources of this application, for support of legacy method of loading formats data from resource files.

Method DefineFormat() can be used to define all necessary parameters explicitly without actually using resource files.

In a resource file, the application associates the schema name of the document with the storage and retrieval plug-ins that are to be loaded for each document. On retrieval, the application reads the schema name in the heading of the CSF file and loads the plug-in indicated in the resource file. This plug-in instantiates the actual driver for transient-persistent conversion. Your application can bring this process into play by defining a class which inherits CDF_Application and redefines the function which returns the appropriate resources file. At this point, the function Retrieve and the class CDF_Store can be called. This allows you to deal with storage and retrieval of - as well as copying and pasting - documents. To implement a class like this, several virtual functions should be redefined. In particular, you must redefine the abstract function Resources inherited from the superclass CDM_Application.

Default implementation returns empty string.

Reimplemented in TObj_Application, XCAFApp_Application, AppStdL_Application, and AppStd_Application.

PCDM_StoreStatus TDocStd_Application::Save ( const Handle< TDocStd_Document > & aDoc )

Save aDoc active document. Exceptions: Standard_NotImplemented if the document was not retrieved in the applicative session by using Open.

PCDM_StoreStatus TDocStd_Application::Save	(	const Handle< TDocStd_Document > &	aDoc,
		TCollection_ExtendedString &	theStatusMessage
	)

Save the document overwriting the previous file.

PCDM_StoreStatus TDocStd_Application::SaveAs	(	const Handle< TDocStd_Document > &	aDoc,
		const TCollection_ExtendedString &	path
	)

Save the active document in the file <name> in the path <path> ; o verwrites the file if it already exists.

PCDM_StoreStatus TDocStd_Application::SaveAs	(	const Handle< TDocStd_Document > &	theDoc,
		Standard_OStream &	theOStream
	)

Save theDoc to standard SEEKABLE stream theOStream. the stream should support SEEK fuctionality.

PCDM_StoreStatus TDocStd_Application::SaveAs	(	const Handle< TDocStd_Document > &	aDoc,
		const TCollection_ExtendedString &	path,
		TCollection_ExtendedString &	theStatusMessage
	)

Save the active document in the file <name> in the path <path> . overwrite the file if it already exist.

PCDM_StoreStatus TDocStd_Application::SaveAs	(	const Handle< TDocStd_Document > &	theDoc,
		Standard_OStream &	theOStream,
		TCollection_ExtendedString &	theStatusMessage
	)

Save theDoc TO standard SEEKABLE stream theOStream. the stream should support SEEK fuctionality.

void TDocStd_Application::WritingFormats ( TColStd_SequenceOfAsciiString & theFormats )

Returns the sequence of writing formats supported by the application.

Parameters

theFormats - sequence of writing formats. Output parameter.

Field Documentation

Standard_Boolean TDocStd_Application::myIsDriverLoaded

protected

Handle< CDM_MessageDriver > TDocStd_Application::myMessageDriver

protected

Handle< Resource_Manager > TDocStd_Application::myResources

protected

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

TDocStd_Application.hxx

TDocStd_Application Class Reference

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Field Documentation