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    a75bbdf7
    improve IsValid of handle and view classes · a75bbdf7
    Marco Biasini authored
    Instead of only checking for the validity of the impl class, the view
    classes now also check if the view data is valid. This improves debugging in
    cases (when the trying to access, for example, an AtomView whose EntityView has
    been deleted.
    a75bbdf7
    History
    improve IsValid of handle and view classes
    Marco Biasini authored
    Instead of only checking for the validity of the impl class, the view
    classes now also check if the view data is valid. This improves debugging in
    cases (when the trying to access, for example, an AtomView whose EntityView has
    been deleted.
chain_base.cc 1.75 KiB
//------------------------------------------------------------------------------
// This file is part of the OpenStructure project <www.openstructure.org>
//
// Copyright (C) 2008-2010 by the OpenStructure authors
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License as published by the Free
// Software Foundation; either version 3.0 of the License, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
// details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this library; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//------------------------------------------------------------------------------
#include "chain_base.hh"
#include <ost/mol/impl/chain_impl.hh>
#include <ost/invalid_handle.hh>

namespace ost { namespace mol {

ChainBase::ChainBase()
{ }

ChainBase::ChainBase(const impl::ChainImplPtr& impl): 
  impl_(impl) 
{}
GenericPropContainerImpl* ChainBase::GpImpl()
{
  return impl_.get();
}


const GenericPropContainerImpl* ChainBase::GpImpl() const
{
  return impl_.get();
}

String ChainBase::GetName() const {
  this->CheckValidity();
  return impl_->GetName();
}

void ChainBase::CheckValidity() const {
  if (!impl_)
    throw InvalidHandle();
}

std::ostream& operator<<(std::ostream& os, const ChainBase& chain) 
{
  if (chain.Impl()) {
    os << chain.GetName();
  } else {
    os << "invalid chain";
  }
  return os;
}

}} // ns