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// File: TDF_Transaction.cxx
// -------------------
// Author: DAUTRY Philippe
// <fid@fox.paris1.matra-dtv.fr>
// Copyright: Matra Datavision 1997
// Version: 0.0
// History: Version Date Purpose
// 0.0 Oct 1 1997 Creation
#include <TDF_Transaction.ixx>
#undef DEB_TRANSACTION
#ifdef DEB
#define DEB_TRANSACTION
#endif
#undef DEB_TRANSACTION_DUMP
#include <TDF_Tool.hxx>
//=======================================================================
//function : TDF_Transaction
//purpose :
//=======================================================================
TDF_Transaction::TDF_Transaction
(const TCollection_AsciiString& aName)
: myUntilTransaction(0),
myName(aName)
{}
//=======================================================================
//function : TDF_Transaction
//purpose : Private copy constructor.
//=======================================================================
TDF_Transaction::TDF_Transaction(const TDF_Transaction& aTrans)
{}
//=======================================================================
//function : TDF_Transaction
//purpose :
//=======================================================================
TDF_Transaction::TDF_Transaction
(const Handle(TDF_Data)& aDF,
const TCollection_AsciiString& aName)
: myDF(aDF),
myUntilTransaction(0),
myName(aName)
{}
//=======================================================================
//function : Initialize
//purpose : Initializes a transaction ready to be opened.
//=======================================================================
void TDF_Transaction::Initialize(const Handle(TDF_Data)& aDF)
{
if (IsOpen()) myDF->AbortUntilTransaction(myUntilTransaction);
myDF = aDF;
myUntilTransaction = 0;
}
//=======================================================================
//function : Open
//purpose :
//=======================================================================
Standard_Integer TDF_Transaction::Open()
{
#ifdef DEB_TRANSACTION
cout<<"Transaction "<<myName<<" opens #"<<myDF->Transaction()+1<<endl;
#endif
if (IsOpen())
Standard_DomainError::Raise("This transaction is already open.");
if (myDF.IsNull())
Standard_NullObject::Raise("Null TDF_Data.");
return myUntilTransaction = myDF->OpenTransaction();
}
//=======================================================================
//function : Commit
//purpose :
//=======================================================================
Handle(TDF_Delta) TDF_Transaction::Commit(const Standard_Boolean withDelta)
{
#ifdef DEB_TRANSACTION
cout<<"Transaction "<<myName<<" commits ";
#endif
Handle(TDF_Delta) delta;
if (IsOpen()) {
#ifdef DEB_TRANSACTION
cout<<"from #"<<myDF->Transaction()<<" until #"<<myUntilTransaction<<" while current is #"<<myDF->Transaction()<<endl;
#endif
#ifdef DEB_TRANSACTION_DUMP
cout<<"DF before commit"<<endl;
TDF_Tool::DeepDump(cout,myDF);
#endif
Standard_Integer until = myUntilTransaction;
myUntilTransaction = 0;
delta = myDF->CommitUntilTransaction(until, withDelta);
#ifdef DEB_TRANSACTION_DUMP
cout<<"DF after commit"<<endl;
TDF_Tool::DeepDump(cout,myDF);
#endif
}
#ifdef DEB_TRANSACTION
else cout<<"but this transaction is not open!"<<endl;
#endif
return delta;
}
//=======================================================================
//function : Abort
//purpose : alias ~
//=======================================================================
void TDF_Transaction::Abort()
{
if (IsOpen()) {
#ifdef DEB_TRANSACTION
cout<<"Transaction "<<myName<<" aborts from #"<<myDF->Transaction()<<" until #"<<myUntilTransaction<<" while current is #"<<myDF->Transaction()<<endl;
#endif
#ifdef DEB_TRANSACTION_DUMP
cout<<"DF before abort"<<endl;
TDF_Tool::DeepDump(cout,myDF);
#endif
myDF->AbortUntilTransaction(myUntilTransaction);
myUntilTransaction = 0;
#ifdef DEB_TRANSACTION_DUMP
cout<<"DF after abort"<<endl;
TDF_Tool::DeepDump(cout,myDF);
#endif
}
}
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