rolelist.h

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/*
 | Author: Michael Schmidt;
 |         Gunnar Jehl 
 |
 | ************************* SOFTWARE LICENSE AGREEMENT ***********************
 | This source code is published under the BSD License.
 |
 | See file 'LICENSE.txt' that comes with this distribution or
 | http://dbis.informatik.uni-freiburg.de/index.php?project=GCX/license.php
 | for the full license agreement.
 |
 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 | POSSIBILITY OF SUCH DAMAGE.
 | ****************************************************************************
*/

#ifndef ROLELIST_H
#define ROLELIST_H

#include <vector>
#include "role.h"

// forward declarations
class PathEnvironment;

class RoleList {

  public:
    static void initInstance(PathEnvironment * _penv);

    static RoleList *getInstance();

     virtual ~ RoleList();

    inline vector < Role * >*getRoles() {
        return &roles;
    } Role *getFreshRole(unsigned basing_var, ROLE_TYPE type,
                           PathExpression * from_var);

    unsigned getMaxRoleId();

    bool removeRole(Role * role);

    void sortRolesForSignOffs();

  private:
    void computeMaxRoleId();

    static RoleList *instance;

    RoleList(PathEnvironment * _penv);

    vector < Role * >roles;

    PathEnvironment *penv;

    unsigned max_role_id;

    bool max_role_id_computed;
};

#endif // ROLELIST_H

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