dependencytuple.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 DEPENDENCYTUPLE_H
#define DEPENDENCYTUPLE_H

#include "pathexpression.h"
#include "passiveprojectiontree.h"

class DependencyTuple {

  public:
    DependencyTuple(PathExpression * _path, bool _cond);

    virtual ~ DependencyTuple();

    void print(OutputStream & dos);

    inline PathExpression *getPath() {
        return path;
    } inline void setRole(Role * _role) {
        role = _role;
    }

    inline bool isCondTuple() {
        return cond;
    }

    bool isPosTuple();

    bool isDosTuple();

    bool isSyntacticallyEqualTo(DependencyTuple * tuple);

    bool isSemanticallyContainedIn(DependencyTuple * tuple);

    void registerToPassiveProjectionTree(unsigned var,
                                         PassiveProjectionTree * ppt);

  private:
    PathExpression * path;

    bool cond;

    Role *role;
};

#endif // DEPENDENCYTUPLE_H

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