#include <list>
#include <string>
-#include "zypp/ProblemTypes.h"
+#include "zypp/base/ReferenceCounted.h"
+#include "zypp/base/PtrTypes.h"
+#include "zypp/solver/detail/Resolver.h"
#include "zypp/ResolverProblem.h"
+#include "zypp/solver/detail/SolutionAction.h"
+#include "zypp/solver/detail/Types.h"
/////////////////////////////////////////////////////////////////////////
namespace zypp
-{
- /////////////////////////////////////////////////////////////////////////
- /// \class ProblemSolution
- /// \brief Class representing one possible solution to a problem found during resolving
- ///
- /// All problems should have at least 2-3 (mutually exclusive) solutions:
- ///
- /// - Undo: Do not perform the offending transaction
- /// (do not install the package that had unsatisfied requirements,
- /// do not remove the package that would break other packages' requirements)
- ///
- /// - Remove referrers: Remove all packages that would break because
- /// they depend on the package that is requested to be removed
- ///
- /// - Ignore: Inject artificial "provides" for a missing requirement
- /// (pretend that requirement is satisfied)
- /////////////////////////////////////////////////////////////////////////
- class ProblemSolution : public base::ReferenceCounted
- {
- public:
- typedef solver::detail::SolutionAction_Ptr SolutionAction_Ptr;
- typedef solver::detail::SolutionActionList SolutionActionList;
-
- /** Constructor. */
- ProblemSolution();
-
- /** Constructor. */
- ProblemSolution( std::string description );
-
- /** Constructor. */
- ProblemSolution( std::string description, std::string details );
-
- /** Destructor. */
- virtual ~ProblemSolution();
+{ ///////////////////////////////////////////////////////////////////////
/**
- * Return a one-line text description of this solution.
+ * Class representing one possible solution to one problem found during resolving
+ *
+ * All problems should have at least 2-3 (mutually exclusive) solutions:
+ *
+ * - Undo: Do not perform the offending transaction
+ * (do not install the package that had unsatisfied requirements,
+ * do not remove the package that would break other packages' requirements)
+ *
+ * - Remove referrers: Remove all packages that would break because
+ * they depend on the package that is requested to be removed
+ *
+ * - Ignore: Inject artificial "provides" for a missing requirement
+ * (pretend that requirement is satisfied)
**/
- const std::string & description() const;
-
- /**
- * Return a (possibly multi-line) detailed description of this
- * solution or an empty string if there are no useful details.
- **/
- const std::string & details() const;
-
- /**
- * Return the list of actions forming this solution.
- **/
- const SolutionActionList & actions() const;
-
- /**
- * Set description of the solution.
- **/
- void setDescription( std::string description );
-
- /**
- * Set detail description of the solution.
- **/
- void setDetails( std::string details );
-
- /**
- * Collect multiple action descriptions in \ref details (NL separated)
- **/
- void pushDescriptionDetail( std::string description, bool front = false );
-
-
- /**
- * Add an action to the actions list.
- **/
- void addAction( SolutionAction_Ptr action );
-
-
- private:
- class Impl;
- RWCOW_pointer<Impl> _pimpl;
- };
-
- /** \relates ProblemSolution Stream output */
- std::ostream& operator<<(std::ostream&, const ProblemSolution & obj );
-
- /** \relates ProblemSolution Stream output */
- std::ostream& operator<<(std::ostream&, const ProblemSolutionList & obj );
-
-} // namespace zypp
+ class ProblemSolution : public base::ReferenceCounted
+ {
+ protected:
+
+ /**
+ * Clear all data.
+ * In particular, delete all members of _actions.
+ **/
+ void clear();
+
+ //
+ // Data members
+ //
+ ResolverProblem_Ptr _problem;
+ solver::detail::CSolutionActionList _actions;
+ std::string _description;
+ std::string _details;
+
+ public:
+
+ /**
+ * Constructor.
+ **/
+ ProblemSolution( ResolverProblem_Ptr parent, const std::string & description, const std::string & details );
+
+ /**
+ * Destructor.
+ **/
+ ~ProblemSolution();
+
+ // ---------------------------------- I/O
+
+ friend std::ostream& operator<<(std::ostream&, const ProblemSolution & solution);
+ friend std::ostream& operator<<(std::ostream&, const ProblemSolutionList & solutionlist);
+ friend std::ostream& operator<<(std::ostream&, const CProblemSolutionList & solutionlist);
+
+ // ---------------------------------- accessors
+ /**
+ * Return a one-line text description of this solution.
+ **/
+ std::string description() const { return _description; }
+
+ /**
+ * Return a (possibly multi-line) detailed description of this
+ * solution or an empty string if there are no useful details.
+ **/
+ std::string details() const { return _details; }
+
+ /**
+ * Return the parent dependency problem.
+ **/
+ ResolverProblem_Ptr problem() const { return _problem; }
+
+ // ---------------------------------- methods
+
+ /**
+ * Apply this solution, i.e. execute all of its actions.
+ *
+ * Returns 'true' on success, 'false' if actions could not be performed.
+ **/
+ bool apply (solver::detail::Resolver & resolver);
+
+ /**
+ * Add an action to the actions list.
+ **/
+ void addAction( solver::detail::SolutionAction_constPtr action );
+
+ solver::detail::CSolutionActionList actions() {return _actions;}
+
+ };
+
+
+ ///////////////////////////////////////////////////////////////////////
+};// namespace zypp
/////////////////////////////////////////////////////////////////////////
+
#endif // ZYPP_PROBLEMSOLUTION_H
projects / platform / upstream / libzypp.git / blobdiff