<>Relation attribute. More...

#include <TDataStd_Relation.hxx>

Inheritance diagram for TDataStd_Relation:

Public Member Functions
	TDataStd_Relation ()

void	SetRelation (const TCollection_ExtendedString &E)

const TCollection_ExtendedString &	GetRelation () const

const Standard_GUID &	ID () const override
	Returns the ID of the attribute. More...

virtual Standard_OStream &	Dump (Standard_OStream &anOS) const override
	Dumps the minimum information about <me> on <aStream>. More...

virtual void	DumpJson (Standard_OStream &theOStream, Standard_Integer theDepth=-1) const override
	Dumps the content of me into the stream. More...

Public Member Functions inherited from TDataStd_Expression
	TDataStd_Expression ()

TCollection_ExtendedString	Name () const
	build and return the expression name More...

void	SetExpression (const TCollection_ExtendedString &E)

const TCollection_ExtendedString &	GetExpression () const

TDF_AttributeList &	GetVariables ()

void	Restore (const Handle< TDF_Attribute > &With) override
	Restores the backuped contents from <anAttribute> into this one. It is used when aborting a transaction. More...

Handle< TDF_Attribute >	NewEmpty () const override
	Returns an new empty attribute from the good end type. It is used by the copy algorithm. More...

void	Paste (const Handle< TDF_Attribute > &Into, const Handle< TDF_RelocationTable > &RT) const override
	This method is different from the "Copy" one, because it is used when copying an attribute from a source structure into a target structure. This method may paste the contents of <me> into <intoAttribute>. More...

Public Member Functions inherited from TDF_Attribute
virtual void	SetID (const Standard_GUID &)
	Sets specific ID of the attribute (supports several attributes of one type at the same label feature). More...

virtual void	SetID ()
	Sets default ID defined in nested class (to be used for attributes having User ID feature). More...

const TDF_Label	Label () const
	Returns the label to which the attribute is attached. If the label is not included in a DF, the label is null. See Label. Warning If the label is not included in a data framework, it is null. This function should not be redefined inline. More...

Standard_Integer	Transaction () const
	Returns the transaction index in which the attribute has been created or modified. More...

Standard_Integer	UntilTransaction () const
	Returns the upper transaction index until which the attribute is/was valid. This number may vary. A removed attribute validity range is reduced to its transaction index. More...

Standard_Boolean	IsValid () const
	Returns true if the attribute is valid; i.e. not a backuped or removed one. More...

Standard_Boolean	IsNew () const
	Returns true if the attribute has no backup. More...

Standard_Boolean	IsForgotten () const
	Returns true if the attribute forgotten status is set. More...

Standard_Boolean	IsAttribute (const Standard_GUID &anID) const
	Returns true if it exists an associated attribute of <me> with <anID> as ID. More...

Standard_Boolean	FindAttribute (const Standard_GUID &anID, Handle< TDF_Attribute > &anAttribute) const
	Finds an associated attribute of <me>, according to <anID>. the returned <anAttribute> is a valid one. The method returns True if found, False otherwise. A removed attribute cannot be found using this method. More...

template<class T >
Standard_Boolean	FindAttribute (const Standard_GUID &theID, Handle< T > &theAttr) const
	Safe variant for arbitrary type of argument. More...

void	AddAttribute (const Handle< TDF_Attribute > &other) const
	Adds an Attribute <other> to the label of <me>.Raises if there is already one of the same GUID fhan <other>. More...

Standard_Boolean	ForgetAttribute (const Standard_GUID &aguid) const
	Forgets the Attribute of GUID <aguid> associated to the label of <me>. Be carefull that if <me> is the attribute of <guid>, <me> will have a null label after this call. If the attribute doesn't exist returns False. Otherwise returns True. More...

void	ForgetAllAttributes (const Standard_Boolean clearChildren=Standard_True) const
	Forgets all the attributes attached to the label of <me>. Does it on the sub-labels if <clearChildren> is set to true. Of course, this method is compatible with Transaction & Delta mecanisms. Be carefull that if <me> will have a null label after this call. More...

virtual void	AfterAddition ()
	Something to do after adding an Attribute to a label. More...

virtual void	BeforeRemoval ()
	Something to do before removing an Attribute from a label. More...

virtual void	BeforeForget ()
	Something to do before forgetting an Attribute to a label. More...

virtual void	AfterResume ()
	Something to do after resuming an Attribute from a label. More...

virtual Standard_Boolean	AfterRetrieval (const Standard_Boolean forceIt=Standard_False)
	Something to do AFTER creation of an attribute by persistent-transient translation. The returned status says if AfterUndo has been performed (true) or if this callback must be called once again further (false). If <forceIt> is set to true, the method MUST perform and return true. Does nothing by default and returns true. More...

virtual Standard_Boolean	BeforeUndo (const Handle< TDF_AttributeDelta > &anAttDelta, const Standard_Boolean forceIt=Standard_False)
	Something to do before applying <anAttDelta>. The returned status says if AfterUndo has been performed (true) or if this callback must be called once again further (false). If <forceIt> is set to true, the method MUST perform and return true. Does nothing by default and returns true. More...

virtual Standard_Boolean	AfterUndo (const Handle< TDF_AttributeDelta > &anAttDelta, const Standard_Boolean forceIt=Standard_False)
	Something to do after applying <anAttDelta>. The returned status says if AfterUndo has been performed (true) or if this callback must be called once again further (false). If <forceIt> is set to true, the method MUST perform and return true. Does nothing by default and returns true. More...

virtual void	BeforeCommitTransaction ()
	A callback. By default does nothing. It is called by TDF_Data::CommitTransaction() method. More...

void	Backup ()
	Backups the attribute. The backuped attribute is flagged "Backuped" and not "Valid". More...

Standard_Boolean	IsBackuped () const
	Returns true if the attribute backup status is set. This status is set/unset by the Backup() method. More...

virtual Handle< TDF_Attribute >	BackupCopy () const
	Copies the attribute contents into a new other attribute. It is used by Backup(). More...

virtual Handle< TDF_DeltaOnAddition >	DeltaOnAddition () const
	Makes an AttributeDelta because <me> appeared. The only known use of a redefinition of this method is to return a null handle (no delta). More...

virtual Handle< TDF_DeltaOnForget >	DeltaOnForget () const
	Makes an AttributeDelta because <me> has been forgotten. More...

virtual Handle< TDF_DeltaOnResume >	DeltaOnResume () const
	Makes an AttributeDelta because <me> has been resumed. More...

virtual Handle< TDF_DeltaOnModification >	DeltaOnModification (const Handle< TDF_Attribute > &anOldAttribute) const
	Makes a DeltaOnModification between <me> and <anOldAttribute. More...

virtual void	DeltaOnModification (const Handle< TDF_DeltaOnModification > &aDelta)
	Applies a DeltaOnModification to <me>. More...

virtual Handle< TDF_DeltaOnRemoval >	DeltaOnRemoval () const
	Makes a DeltaOnRemoval on <me> because <me> has disappeared from the DS. More...

virtual void	References (const Handle< TDF_DataSet > &aDataSet) const
	Adds the first level referenced attributes and labels to <aDataSet>. More...

Standard_OStream &	operator<< (Standard_OStream &anOS) const

virtual void	ExtendedDump (Standard_OStream &anOS, const TDF_IDFilter &aFilter, TDF_AttributeIndexedMap &aMap) const
	Dumps the attribute content on <aStream>, using <aMap> like this: if an attribute is not in the map, first put add it to the map and then dump it. Use the map rank instead of dumping each attribute field. More...

void	Forget (const Standard_Integer aTransaction)
	Forgets the attribute. <aTransaction> is the current transaction in which the forget is done. A forgotten attribute is also flagged not "Valid". 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...

Static Public Member Functions
static const Standard_GUID &	GetID ()
	<>class methods More...

static Handle< TDataStd_Relation >	Set (const TDF_Label &label)
	Find, or create, an Relation attribute. <>Real methods More...

Static Public Member Functions inherited from TDataStd_Expression
static const Standard_GUID &	GetID ()
	<>class methods More...

static Handle< TDataStd_Expression >	Set (const TDF_Label &label)
	Find, or create, an Expression attribute. <>Expressionmethods 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...

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

Protected Member Functions inherited from TDF_Attribute
	TDF_Attribute ()
	Initializes fields. More...

Protected Attributes inherited from TDataStd_Expression
TCollection_ExtendedString	myExpression

TDF_AttributeList	myVariables

Detailed Description

<>Relation attribute.

Data Structure of the Expression is stored in a string and references to variables used by the string

Warning: To be consistent, each Variable referenced by the relation must have its equivalent in the string

Constructor & Destructor Documentation

◆ TDataStd_Relation()

TDataStd_Relation::TDataStd_Relation ( )

Member Function Documentation

◆ Dump()

virtual Standard_OStream& TDataStd_Relation::Dump ( Standard_OStream & anOS ) const

overridevirtual

Dumps the minimum information about <me> on <aStream>.

Reimplemented from TDataStd_Expression.

◆ DumpJson()

virtual void TDataStd_Relation::DumpJson	(	Standard_OStream &	theOStream,
		Standard_Integer	theDepth = `-1`
	)		const

overridevirtual

Dumps the content of me into the stream.

Reimplemented from TDataStd_Expression.

◆ GetID()

static const Standard_GUID& TDataStd_Relation::GetID ( )

static

<>class methods

◆ GetRelation()

const TCollection_ExtendedString& TDataStd_Relation::GetRelation ( ) const

◆ ID()

const Standard_GUID& TDataStd_Relation::ID ( ) const

overridevirtual

Returns the ID of the attribute.

Reimplemented from TDataStd_Expression.

◆ Set()

static Handle< TDataStd_Relation > TDataStd_Relation::Set ( const TDF_Label & label )

static

Find, or create, an Relation attribute.

<>Real methods

◆ SetRelation()

void TDataStd_Relation::SetRelation ( const TCollection_ExtendedString & E )

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

TDataStd_Relation.hxx

TDataStd_Relation Class Reference

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ TDataStd_Relation()

Member Function Documentation

◆ Dump()

◆ DumpJson()

◆ GetID()

◆ GetRelation()

◆ ID()

◆ Set()

◆ SetRelation()