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XCAFSchema Class Reference

Schema
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#include <XCAFSchema.hxx>

Inheritance diagram for XCAFSchema:
Inheritance graph
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Additional Inherited Members

- Public Member Functions inherited from Storage_Schema
 Storage_Schema ()
 
 Builds a storage/retrieval algorithm based on a <br>

given data schema.
Example
For example, if ShapeSchema is the class
inheriting from Storage_Schema and containing
the description of your application data schema,
you create a storage/retrieval algorithm as follows:
Handle(ShapeSchema) s = new
ShapeSchema;
-----— –
USER API – -----------------------------------------------------------—
-----— –
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void SetVersion (const TCollection_AsciiString &aVersion)
 returns version of the schema
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TCollection_AsciiString Version () const
 returns the version of the schema
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void SetName (const TCollection_AsciiString &aSchemaName)
 set the schema's name
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TCollection_AsciiString Name () const
 returns the schema's name
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void Write (Storage_BaseDriver &s, const Handle< Storage_Data > &aData) const
 
 Writes the data aggregated in aData into the <br>

container defined by the driver s. The storage
operation is performed according to the data
schema with which this algorithm is working.
Note: aData may aggregate several root objects
to be stored together.
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Handle_Storage_Data Read (Storage_BaseDriver &s) const
 
  Returns the data read from the container defined <br>

by the driver s. The retrieval operation is
performed according to the data schema with
which this algorithm is working.
These data are aggregated in a Storage_Data
object which may be browsed in order to extract
the root objects from the container.
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Handle_Storage_HeaderData ReadHeaderSection (Storage_BaseDriver &s) const
 
read the header part of the stream <br>

Arguments:
s: driver to read
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Handle_Storage_TypeData ReadTypeSection (Storage_BaseDriver &s) const
 
fill the TypeData with the  names of the type used <br>
    in a stream <br>

Arguments:
s: driver to read
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Handle_Storage_RootData ReadRootSection (Storage_BaseDriver &s) const
 
read root part of the file <br>

Arguments:
s: driver to read
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virtual const
TColStd_SequenceOfAsciiString
SchemaKnownTypes () const
 returns the known types of a schema
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Standard_Boolean HasUnknownType (Storage_BaseDriver &aDriver, TColStd_SequenceOfAsciiString &theUnknownTypes) const
 indicates whether the are types in the driver
which are not known from the schema and for which
no callbacks have been set. The unknown types can
be read in <theUnknownTypes>.
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Handle_TColStd_HSequenceOfAsciiString GetAllSchemaKnownTypes () const
 returns the all known types of a schema and their
nested schemes.
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void SetNestedSchemas (const Handle< Storage_HArrayOfSchema > &theSchemas)
 
void ClearNestedSchemas ()
 
Handle_Storage_HArrayOfSchema NestedSchemas () const
 
void AddReadUnknownTypeCallBack (const TCollection_AsciiString &aTypeName, const Handle< Storage_CallBack > &aCallBack)
 add two functions to the callback list
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void RemoveReadUnknownTypeCallBack (const TCollection_AsciiString &aTypeName)
 remove a callback for a type
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Handle_TColStd_HSequenceOfAsciiString InstalledCallBackList () const
 returns a list of type name with installed
callback.
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void ClearCallBackList ()
 clear all callback from schema instance.
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void UseDefaultCallBack ()
 install a callback for all unknown type. the
objects with unknown types will be skipped. (look
SkipObject method in BaseDriver)
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void DontUseDefaultCallBack ()
 tells schema to uninstall the default callback.
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Standard_Boolean IsUsingDefaultCallBack () const
 ask if the schema is using the default callback.
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void SetDefaultCallBack (const Handle< Storage_CallBack > &f)
 overload the default function for build.(use to
set an error message or skip an object while
reading an unknown type).
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void ResetDefaultCallBack ()
 reset the default function defined by Storage
package.
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Handle_Storage_CallBack DefaultCallBack () const
 returns the read function used when the
UseDefaultCallBack() is set.
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virtual Handle_Storage_CallBack CallBackSelection (const TCollection_AsciiString &tName) const
 
virtual Handle_Storage_CallBack AddTypeSelection (const Handle< Standard_Persistent > &sp) const
 
void WritePersistentObjectHeader (const Handle< Standard_Persistent > &sp, Storage_BaseDriver &s)
 
void ReadPersistentObjectHeader (Storage_BaseDriver &s)
 
void WritePersistentReference (const Handle< Standard_Persistent > &sp, Storage_BaseDriver &s)
 
void ReadPersistentReference (Handle< Standard_Persistent > &sp, Storage_BaseDriver &s)
 
Standard_Boolean AddPersistent (const Handle< Standard_Persistent > &sp, const Standard_CString tName) const
 
Standard_Boolean PersistentToAdd (const Handle< Standard_Persistent > &sp) const
 
- Public Member Functions inherited from MMgt_TShared
virtual void Delete () const
 Memory deallocator for transient classes. More...
 
- Public Member Functions inherited from Standard_Transient
 Standard_Transient ()
 Empty constructor. More...
 
 Standard_Transient (const Standard_Transient &)
 Copy constructor – does nothing. More...
 
Standard_Transientoperator= (const Standard_Transient &)
 Assignment operator, needed to avoid copying reference counter. More...
 
virtual ~Standard_Transient ()
 Destructor must be virtual. More...
 
virtual void ShallowDump (Standard_OStream &) const
 
virtual const
Handle_Standard_Type & 
DynamicType () const
 Returns a type information object about this object. More...
 
Standard_Boolean IsInstance (const 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 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...
 
virtual Handle_Standard_Transient This () const
 Returns a Handle which references this object. Must never be called to objects created in stack. More...
 
Standard_Integer GetRefCount () const
 Get the reference counter of this object. More...
 
- Static Public Member Functions inherited from Storage_Schema
static TCollection_AsciiString ICreationDate ()
 return a current date string
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static Standard_Boolean CheckTypeMigration (const TCollection_AsciiString &theTypeName, TCollection_AsciiString &theNewName)
 returns True if theType migration is identified
//! the callback support provides a way to read a file
with a incomplete schema.
ex. : A file contains 3 types a,b and c.
The application's schema contains only 2
type a and b. If you try to read the file in
the application, you will have an error.To
bypass this problem you can give to your
application's schema a callback used when
the schema dosent know how to handle this
type.
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- Protected Member Functions inherited from Storage_Schema
Standard_Boolean IsNested () const
 
Handle_Storage_CallBack ResolveUnknownType (const TCollection_AsciiString &aTypeName, const Handle< Standard_Persistent > &aPers, const Storage_SolveMode aMode) const
 
Standard_Boolean HasTypeBinding (const TCollection_AsciiString &aTypeName) const
 
void BindType (const TCollection_AsciiString &aTypeName, const Handle< Storage_CallBack > &aCallBack) const
 
Handle_Storage_CallBack TypeBinding (const TCollection_AsciiString &aTypeName) const
 

Detailed Description

Schema


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