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// File: CDM_Reference.cxx
// Created: Wed Oct 22 16:56:22 1997
// Author: Jean-Louis Frenkel
// <rmi@frilox.paris1.matra-dtv.fr>
#include <CDM_Reference.ixx>
CDM_Reference::CDM_Reference(const Handle(CDM_Document)& aFromDocument, const Handle(CDM_Document)& aToDocument, const Standard_Integer aReferenceIdentifier, const Standard_Integer aToDocumentVersion):
myToDocument(aToDocument),
myFromDocument(aFromDocument.operator->()),
myReferenceIdentifier(aReferenceIdentifier),
myDocumentVersion(aToDocumentVersion)
{}
CDM_Reference::CDM_Reference(const Handle(CDM_Document)& aFromDocument, const Handle(CDM_MetaData)& aToDocument, const Standard_Integer aReferenceIdentifier, const Handle(CDM_Application)& anApplication, const Standard_Integer aToDocumentVersion, const Standard_Boolean UseStorageConfiguration):
myFromDocument(aFromDocument.operator->()),
myReferenceIdentifier(aReferenceIdentifier),
myApplication(anApplication),
myMetaData(aToDocument),
myDocumentVersion(aToDocumentVersion),
myUseStorageConfiguration(UseStorageConfiguration)
{}
Handle(CDM_Document) CDM_Reference::FromDocument() {
return myFromDocument;
}
Handle(CDM_Document) CDM_Reference::ToDocument() {
if(myToDocument.IsNull()) {
myToDocument=myApplication->Retrieve(myMetaData,myUseStorageConfiguration);
myApplication.Nullify();
}
return myToDocument;
}
Standard_Integer CDM_Reference::ReferenceIdentifier() {
return myReferenceIdentifier;
}
void CDM_Reference::Update(const Handle(CDM_MetaData)& aMetaData) {
if(myToDocument.IsNull()) {
if(myMetaData == aMetaData) {
myToDocument=myMetaData->Document();
myToDocument->AddFromReference(this);
myApplication.Nullify();
}
}
}
Standard_Boolean CDM_Reference::IsUpToDate() const {
Standard_Integer theActualDocumentVersion;
if(myToDocument.IsNull())
theActualDocumentVersion=myMetaData->DocumentVersion(myApplication);
else
theActualDocumentVersion=myToDocument->Modifications();
return myDocumentVersion==theActualDocumentVersion;
}
void CDM_Reference::SetIsUpToDate() {
Standard_Integer theActualDocumentVersion;
if(myToDocument.IsNull())
theActualDocumentVersion=myMetaData->DocumentVersion(myApplication);
else
theActualDocumentVersion=myToDocument->Modifications();
if(theActualDocumentVersion != -1) myDocumentVersion=theActualDocumentVersion;
}
void CDM_Reference::UnsetToDocument(const Handle(CDM_MetaData)& aMetaData, const Handle(CDM_Application)& anApplication) {
myToDocument.Nullify();
myApplication=anApplication;
myMetaData=aMetaData;
}
Standard_Integer CDM_Reference::DocumentVersion() const {
return myDocumentVersion;
}
Standard_Boolean CDM_Reference::IsOpened() const {
if(myToDocument.IsNull()) return Standard_False;
return myToDocument->IsOpened();
}
Standard_Boolean CDM_Reference::IsReadOnly() const {
if(myToDocument.IsNull()) return myMetaData->IsReadOnly();
return myToDocument->IsReadOnly();
}
Handle(CDM_Document) CDM_Reference::Document() const {
return myToDocument;
}
Handle(CDM_MetaData) CDM_Reference::MetaData() const {
return myMetaData;
}
Handle(CDM_Application) CDM_Reference::Application() const {
return myApplication;
}
Standard_Boolean CDM_Reference::UseStorageConfiguration() const {
return myUseStorageConfiguration;
}
Standard_Boolean CDM_Reference::IsInSession() const {
return !myToDocument.IsNull();
}
Standard_Boolean CDM_Reference::IsStored() const {
return !myMetaData.IsNull();
}
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