#include <Standard_NoSuchObject.hxx>
#include <Standard_OutOfRange.hxx>
#include <Standard_NotImplemented.hxx>

// ----------------------------------------------------------------------
// Copyright: 	Matra-Datavision 1992
// File:	PCollection_SeqNode.gxx
// Created:	Sep, 24 1992
// Author:      Mireille MERCIEN
// ----------------------------------------------------------------------

// -----------
// constructor :
// -----------
PCollection_SeqNode::PCollection_SeqNode
      (const Handle(PCollection_SeqNode)& TheLast , const Item& TheItem )
{
   MyItem = TheItem;
   MyPrevious = TheLast;
   MyNext.Nullify();
}

PCollection_SeqNode::PCollection_SeqNode
      (const Item& TheItem , const Handle(PCollection_SeqNode)& TheFirst)
{
   MyItem = TheItem;
   MyNext = TheFirst;
   MyPrevious.Nullify();

}

PCollection_SeqNode::PCollection_SeqNode
      (const Handle(PCollection_SeqNode)& ThePrevious , 
       const Handle(PCollection_SeqNode)& TheNext ,
       const Item& TheItem) 
{
   MyItem     = TheItem;
   MyNext     = TheNext;
   MyPrevious = ThePrevious;
}   

// -----------
// Value
// -----------
Item PCollection_SeqNode::Value() const 
{
   return MyItem;
}

// -----------
// Next
// -----------
Handle(PCollection_SeqNode) PCollection_SeqNode::Next() const 
{
   return MyNext;
}

// -----------
// Previous
// -----------
Handle(PCollection_SeqNode) PCollection_SeqNode::Previous() const 
{
   return MyPrevious;
}

// -----------
// SetValue
// -----------
void PCollection_SeqNode::SetValue(const Item& TheItem) 
{
   MyItem = TheItem;
} 

// -----------
// SetNext
// -----------
void PCollection_SeqNode::SetNext(const Handle(PCollection_SeqNode)& TheNext)
{
   MyNext = TheNext;
}

// -----------
// SetPrevious
// -----------
void PCollection_SeqNode::
         SetPrevious(const Handle(PCollection_SeqNode)& ThePrevious)
{
   MyPrevious = ThePrevious;
}